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<front> <front>
<title>YANG Schema Item iDentifier (YANG SID)</title> <title abbrev="YANG Data Model for YANG-SIDs">YANG Data Model for YANG Schem
<seriesInfo name="Internet-Draft" value="draft-ietf-core-sid-24"/> a Item iDentifiers (YANG-SIDs)</title>
<author initials="M. V." surname="Veillette" fullname="Michel Veillette" rol
e="editor"> <seriesInfo name="RFC" value="9595"/>
<author initials="M." surname="Veillette" fullname="Michel Veillette" role="
editor">
<organization>Trilliant Networks Inc.</organization> <organization>Trilliant Networks Inc.</organization>
<address> <address>
<postal> <postal>
<street>610 Rue du Luxembourg</street> <street>610 Rue du Luxembourg</street>
<city>Granby</city> <city>Granby</city>
<region>Quebec</region> <region>Quebec</region>
<code>J2J 2V2</code> <code>J2J 2V2</code>
<country>Canada</country> <country>Canada</country>
</postal> </postal>
<phone>+14503750556</phone> <phone>+1-450-375-0556</phone>
<email>michel.veillette@trilliant.com</email> <email>michel.veillette@trilliant.com</email>
</address> </address>
</author> </author>
<author initials="A." surname="Pelov" fullname="Alexander Pelov" role="edito r"> <author initials="A." surname="Pelov" fullname="Alexander Pelov" role="edito r">
<organization>IMT Atlantique</organization> <organization>IMT Atlantique</organization>
<address> <address>
<postal> <postal>
<street>2 rue de la Châtaigneraie</street> <street>2 rue de la Châtaigneraie</street>
<city>Cesson-Sevigne</city> <city>Cesson-Sévigné Cedex</city>
<region>Bretagne</region>
<code>35510</code> <code>35510</code>
<country>France</country> <country>France</country>
</postal> </postal>
<email>alexander.pelov@imt-atlantique.fr</email> <email>alexander.pelov@imt-atlantique.fr</email>
</address> </address>
</author> </author>
<author initials="I." surname="Petrov" fullname="Ivaylo Petrov" role="editor "> <author initials="I." surname="Petrov" fullname="Ivaylo Petrov" role="editor ">
<organization>Google Switzerland GmbH</organization> <organization>Google Switzerland GmbH</organization>
<address> <address>
<postal> <postal>
<street>Brandschenkestrasse 110</street> <street>Brandschenkestrasse 110</street>
<city>Zurich</city> <city>Zurich</city>
<region>Zurich</region>
<code>8002</code> <code>8002</code>
<country>Switzerland</country> <country>Switzerland</country>
</postal> </postal>
<email>ivaylopetrov@google.com</email> <email>ivaylopetrov@google.com</email>
</address> </address>
</author> </author>
<author initials="C." surname="Bormann" fullname="Carsten Bormann"> <author initials="C." surname="Bormann" fullname="Carsten Bormann">
<organization>Universität Bremen TZI</organization> <organization>Universität Bremen TZI</organization>
<address> <address>
<postal> <postal>
<street>Postfach 330440</street> <street>Postfach 330440</street>
<city>D-28359 Bremen</city> <city>Bremen</city>
<country>Germany</country> <country>Germany</country>
<code>D-28359</code>
</postal> </postal>
<phone>+49-421-218-63921</phone> <phone>+49-421-218-63921</phone>
<email>cabo@tzi.org</email> <email>cabo@tzi.org</email>
</address> </address>
</author> </author>
<author initials="M." surname="Richardson" fullname="Michael Richardson"> <author initials="M." surname="Richardson" fullname="Michael Richardson">
<organization>Sandelman Software Works</organization> <organization>Sandelman Software Works</organization>
<address> <address>
<postal> <postal>
<country>Canada</country> <country>Canada</country>
</postal> </postal>
<email>mcr+ietf@sandelman.ca</email> <email>mcr+ietf@sandelman.ca</email>
</address> </address>
</author> </author>
<date year="2023" month="December" day="22"/>
<area>Applications and Real-Time Area (art)</area> <date year="2024" month="June"/>
<workgroup>Internet Engineering Task Force</workgroup>
<area>WIT</area>
<workgroup>core</workgroup>
<keyword>CBOR</keyword> <keyword>CBOR</keyword>
<abstract>
<?line 123?>
<t>YANG Schema Item iDentifiers (YANG SID) are globally unique 63-bit unsigned i <!-- [rfced] 19 June 2024 notes:
ntegers used to identify YANG items, as a more compact method to identify YANG i Michael Richardson replied to our original
tems that can be used for efficiency and in constrained environments (RFC 7228). questions 9), 11), 18)b), 19),
This document defines the semantics, the registration, and assignment processes 20) (only the "We see Andy Bierman listed in both the
of YANG SIDs for IETF managed YANG modules. Acknowledgements and Contributors sections" part), 21)b), 21)d),
To enable the implementation of these processes, this document also defines a fi 24) (treating as definite "yes", but flagged, pending any subsequent
le format used to persist and publish assigned YANG SIDs.</t> replies from coauthors),
<t><cref anchor="status">The present version (–24) is intended to address 26), 29), 30), 31), 34),
the remaining IESG comments.</cref></t> 37) (the "Section 6.4.2: The information under ..." AQ),
52) (changed "early draft" to "early version of an Internet-Draft"),
and 58) (portions of it)
Michael also said "I am okay with the suggested text in all cases",
so we updated those items accordingly. -->
<abstract>
<t>YANG Schema Item iDentifiers (YANG-SIDs) are globally unique 63-bit unsigned
integers used to identify YANG items. SIDs provide a more compact method for ide
ntifying those YANG items that can be used efficiently, particularly in constrai
ned environments (RFC 7228).
This document defines the semantics, registration processes, and assignment proc
esses for YANG-SIDs for IETF-managed YANG modules.
To enable the implementation of these processes, this document also defines a fi
le format used to persist and publish assigned YANG-SIDs.</t>
</abstract> </abstract>
<note removeInRFC="true">
<name>About This Document</name>
<t>
Status information for this document may be found at <eref target="https
://datatracker.ietf.org/doc/draft-ietf-core-sid/"/>.
</t>
<t>
Discussion of this document takes place on the
Constrained RESTful Environments Working Group mailing list (<eref targe
t="mailto:core@ietf.org"/>),
which is archived at <eref target="https://mailarchive.ietf.org/arch/bro
wse/core/"/>.
Subscribe at <eref target="https://www.ietf.org/mailman/listinfo/core/"/
>.
</t>
<t>Source for this draft and an issue tracker can be found at
<eref target="https://github.com/core-wg/yang-cbor"/>.</t>
</note>
</front> </front>
<middle> <middle>
<?line 136?>
<section anchor="introduction"> <section anchor="introduction">
<name>Introduction</name> <name>Introduction</name>
<t>Some of the items defined in YANG <xref target="RFC7950"/> require the use of a <t>Some of the items defined in YANG <xref target="RFC7950"/> require the use of a
unique identifier. unique identifier.
In both Network Configuration Protocol (NETCONF) <xref target="RFC6241"/> and RE STCONF <xref target="RFC8040"/>, these identifiers are implemented using names. In both the Network Configuration Protocol (NETCONF) <xref target="RFC6241"/> an d RESTCONF <xref target="RFC8040"/>, these identifiers are implemented using nam es.
To allow the implementation of data models defined in YANG in constrained device s <xref target="RFC7228"/> and constrained networks, a more compact method to id entify YANG items is required. To allow the implementation of data models defined in YANG in constrained device s <xref target="RFC7228"/> and constrained networks, a more compact method to id entify YANG items is required.
This compact identifier, called YANG Schema Item iDentifier or YANG SID (or simp ly SID in this document and when the context is clear), is encoded using a 63-bi t unsigned integer. This compact identifier, called the YANG Schema Item iDentifier or YANG-SID (or simply SID in this document and when the context is clear), is encoded using a 6 3-bit unsigned integer.
The limitation to 63-bit unsigned integers allows SIDs to be manipulated more ea sily on platforms that might otherwise lack 64-bit unsigned arithmetic. The limitation to 63-bit unsigned integers allows SIDs to be manipulated more ea sily on platforms that might otherwise lack 64-bit unsigned arithmetic.
The loss of a single bit of range is not significant given the size of the remai ning space.</t> The loss of a single bit of range is not significant, given the size of the rema ining space.</t>
<t>The following items are identified using SIDs:</t> <t>The following items are identified using SIDs:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>identities</t> <t>identities</t>
</li> </li>
<li> <li>
<t>data nodes (Note: including those nodes defined by the <t>data nodes (note: including those nodes defined by the
'rc:yang-data' <xref target="RFC8040"/> and 'sx:structure' <xref target="RFC8791 'rc:yang-data' extension <xref target="RFC8040"/> and the 'sx:structure' extensi
"/> extensions.)</t> on <xref target="RFC8791"/>)</t>
</li> </li>
<li> <li>
<t>remote procedure calls (RPCs) and associated input(s) and output(s) </t> <t>remote procedure calls (RPCs) and associated input(s) and output(s) </t>
</li> </li>
<li> <li>
<t>actions and associated input(s) and output(s)</t> <t>actions and associated input(s) and output(s)</t>
</li> </li>
<li> <li>
<t>notifications and associated information</t> <t>notifications and associated information</t>
</li> </li>
<li> <li>
<t>YANG modules and features</t> <t>YANG modules and features</t>
</li> </li>
</ul> </ul>
<t>It is possible that some protocols use only a subset of the assigned SI <t>It is possible that some protocols will use only a subset of the assign
Ds, for ed SIDs; for
example, for protocols equivalent to NETCONF <xref target="RFC6241"/> like <xref example, for protocols that provide extensions to NETCONF <xref target="RFC6241"
target="I-D.ietf-core-comi"/> the />, such as <xref target="CORE-COMI"/>, the
transportation of YANG module SIDs might be unnecessary. Other protocols transport of YANG module SIDs might be unnecessary. Other protocols
might need to be able to transport this information, for example protocols might need to be able to transport this information -- for example, protocols
related to discovery such as Constrained YANG Module Library <xref target="I-D.i related to discovery such as the Constrained YANG Module Library <xref target="Y
etf-core-yang-library"/>.</t> ANG-LIBRARY"/>.</t>
<t>SIDs are globally unique integers. A registration system is used in or der to <t>SIDs are globally unique integers. A registration system is used in or der to
guarantee their uniqueness. SIDs are registered in blocks called "SID ranges". guarantee their uniqueness. SIDs are registered in blocks called "SID ranges".
Once considered "stable", SIDs are assigned permanently. Once they are considered "stable", SIDs are assigned permanently.
Items introduced by a new revision of a YANG Items introduced by a new revision of a YANG
module are added to the list of SIDs already assigned. module are added to the list of SIDs already assigned.
This is discussed in more detail in <xref target="objectives"/>.</t> This is discussed in more detail in <xref target="objectives"/>.</t>
<t>Assignment of SIDs to YANG items is usually automated as <t>The assignment of SIDs to YANG items is usually automated as
discussed in <xref target="sid-auto-generation"/>, which also discusses some cas es discussed in <xref target="sid-auto-generation"/>, which also discusses some cas es
where manual interventions may be appropriate.</t> where manual interventions may be appropriate.</t>
<t><xref target="sid-lifecycle"/> provides more details about the registra <t><xref target="sid-lifecycle"/> provides more details about the registra
tion process of YANG tion processes for YANG
modules and associated SIDs. To enable the implementation of this registry, modules and associated SIDs. To enable the implementation of these processes,
<xref target="sid-file-format"/> defines a standard file format used to store an d publish <xref target="sid-file-format"/> defines a standard file format used to store an d publish
SIDs.</t> SIDs.
<t>IETF managed YANG modules that need to allocate SIDs use the IANA mecha
nism specified in this document. <!-- [rfced] Section 1: We found "this registry" odd in this
context. We updated this sentence as follows. If this is incorrect,
please provide text that clarifies what "this registry" means here.
Original (the previous sentence is included for context):
Section 3 provides more details about the registration process of
YANG modules and associated SIDs. To enable the implementation of
this registry, Section 4 defines a standard file format used to store
and publish SIDs.
Currently:
To enable the implementation of
these processes, Section 4 defines a standard file format used to
store and publish SIDs. -->
</t>
<t>IETF-managed YANG modules that need to allocate SIDs will use the IANA
mechanisms (e.g., allocation mechanisms) specified in this document.
See <xref target="IANA"/> for details.
YANG modules created by other parties allocate SID ranges using the IANA allocat ion mechanisms via Mega-Ranges (see <xref target="mega-range-registry"/>); withi n the Mega-Range allocation, those other parties are free to make up their own m echanism.</t> YANG modules created by other parties allocate SID ranges using the IANA allocat ion mechanisms via Mega-Ranges (see <xref target="mega-range-registry"/>); withi n the Mega-Range allocation, those other parties are free to make up their own m echanism.</t>
<t>Among other uses, YANG SIDs are particularly useful to obtain a <t>Among other uses, YANG-SIDs are particularly useful for obtaining a
compact encoding for YANG-CBOR <xref target="RFC9254"/>. compact encoding for YANG-CBOR <xref target="RFC9254"/>.
At the time of writing, a tool for automated ".sid" file generation is At the time of writing, a tool for automated ".sid" file generation is
available as part of the open-source project PYANG <xref target="PYANG"/>.</t> available as part of the open-source project PYANG <xref target="PYANG"/>.</t>
<section anchor="terminology-and-notation"> <section anchor="terminology-and-notation">
<name>Terminology and Notation</name> <name>Terminology and Notation</name>
<t>The key words "<bcp14>MUST</bcp14>", "<bcp14>MUST NOT</bcp14>", "<bcp <t>The key words "<bcp14>MUST</bcp14>", "<bcp14>MUST NOT</bcp14>",
14>REQUIRED</bcp14>", "<bcp14>SHALL</bcp14>", "<bcp14>SHALL "<bcp14>REQUIRED</bcp14>", "<bcp14>SHALL</bcp14>",
NOT</bcp14>", "<bcp14>SHOULD</bcp14>", "<bcp14>SHOULD NOT</bcp14>", "<bcp14>RECO "<bcp14>SHALL NOT</bcp14>", "<bcp14>SHOULD</bcp14>",
MMENDED</bcp14>", "<bcp14>NOT RECOMMENDED</bcp14>", "<bcp14>SHOULD NOT</bcp14>",
"<bcp14>MAY</bcp14>", and "<bcp14>OPTIONAL</bcp14>" in this document are to be i "<bcp14>RECOMMENDED</bcp14>", "<bcp14>NOT RECOMMENDED</bcp14>",
nterpreted as "<bcp14>MAY</bcp14>", and "<bcp14>OPTIONAL</bcp14>" in this document
described in BCP 14 <xref target="RFC2119"/> <xref target="RFC8174"/> when, and are to be interpreted as described in BCP&nbsp;14
only when, they <xref target="RFC2119"/> <xref target="RFC8174"/> when, and only
appear in all capitals, as shown here.</t> when, they appear in all capitals, as shown here.</t>
<?line -18?>
<t>The following terms are defined in <xref target="RFC7950"/>:</t> <t>The following terms are defined in <xref target="RFC7950"/>:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>action</t> <t>action</t>
</li> </li>
<li> <li>
<t>feature</t> <t>feature</t>
</li> </li>
<li> <li>
skipping to change at line 201 skipping to change at line 237
<t>schema node</t> <t>schema node</t>
</li> </li>
<li> <li>
<t>schema tree</t> <t>schema tree</t>
</li> </li>
<li> <li>
<t>submodule</t> <t>submodule</t>
</li> </li>
</ul> </ul>
<t>This specification also makes use of the following terminology:</t> <t>This specification also makes use of the following terminology:</t>
<ul spacing="normal"> <dl spacing="normal">
<li> <dt>item:</dt><dd>A schema node, an identity, a module, or a feature d
<t>item: A schema node, an identity, a module, or a feature defined efined using the YANG modeling language.</dd>
using the YANG modeling language.</t> <dt>YANG Schema Item iDentifier (YANG-SID or simply SID):</dt><dd>Unsi
</li> gned
<li> integer used to identify different YANG items (cf.&nbsp;<xref section="3.2" sect
<t>YANG Schema Item iDentifier (YANG SID or simply SID): Unsigned ionFormat="of" target="RFC9254"/>).</dd>
integer used to identify different YANG items (cf. <xref section="3.2" sectionFo <dt>YANG name:</dt><dd>Text string used to identify different YANG ite
rmat="of" target="RFC9254"/>).</t> ms
</li> (cf.&nbsp;<xref section="3.3" sectionFormat="of" target="RFC9254"/>).</dd>
<li> </dl>
<t>YANG Name: Text string used to identify different YANG items
(cf. <xref section="3.3" sectionFormat="of" target="RFC9254"/>).</t>
</li>
</ul>
</section> </section>
</section> </section>
<section anchor="objectives"> <section anchor="objectives">
<name>Objectives</name> <name>Objectives</name>
<t>The overriding objective of the SID assignment and registration system is to <t>The overriding objective of the SID assignment and registration system is to
ensure global interoperability of protocols that employ SIDs in order ensure global interoperability of protocols that employ SIDs in order
to communicate about data modeled in YANG. to communicate about data modeled in YANG <xref target="RFC7950"/>.
This objective poses certain requirements on the stability of SIDs This objective poses certain requirements on the stability of SIDs
while at the same time not hindering active evolution of the YANG while at the same time not hindering active evolution of the YANG
modules the SIDs are intended to support.</t> modules the SIDs are intended to support.</t>
<t>Additional objectives include:</t> <t>Additional objectives include:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>enabling the developer of a YANG module to also be the originating <t>enabling the developer of a YANG module to also be the originating
entity for the SIDs pertaining to that module.</t> entity for the SIDs pertaining to that module.</t>
</li> </li>
<li> <li>
<t>making it easy for YANG developers to obtain SIDs.</t> <t>making it easy for YANG developers to obtain SIDs.</t>
</li> </li>
<li> <li>
<t>enabling other developers to define SIDs for a module where the <t>enabling other developers to define SIDs for a module where the
developer of the module is not interested in assigning the SIDs.</t> developer of the module is not interested in assigning the SIDs.</t>
</li> </li>
<li> <li>
<t>keeping an assignment regime that keeps short (2..4 byte) SIDs <t>keeping an assignment regime that keeps short SIDs (2..4 bytes)
readily available for the applications that would benefit from them readily available for the applications that would benefit from them
while at the same time employing the vast 63-bit SID space to while at the same time employing the vast 63-bit SID space to
facilitate permissionless actions.</t> facilitate permissionless actions.</t>
</li> </li>
<li> <li>
<t>enabling multiple entities to provide services that support the <t>enabling multiple entities to provide services that support the
assignment of SIDs.</t> assignment of SIDs.</t>
</li> </li>
<li> <li>
<t>maintaining some locality in the assignment of SIDs so the <t>maintaining some locality in the assignment of SIDs so the
efficiencies of the SID delta mechanism can be fully employed.</t> efficiencies of the SID delta mechanism can be fully employed.</t>
</li> </li>
<li> <li>
<t>enabling various software components to deal in terms of SIDs <t>enabling various software components to deal in terms of SIDs
without having complete information about other parties in the without having complete information about other parties in the
communication process.</t> communication process.
<!-- [rfced] Section 2: We could not follow the use of the word
"deal" in this sentence, even after looking at definitions in an
online dictionary (https://www.merriam-webster.com/dictionary/deal).
Are some words missing? If not, will "to deal in terms of" be clear
to readers?
Original:
* enabling various software components to deal in terms of SIDs
without having complete information about other parties in the
communication process.
Possibly ("operate" rather than "deal"):
* enabling various software components to operate in terms of SIDs
without having complete information about other parties in the
communication process. -->
</t>
</li> </li>
</ul> </ul>
<t>While IANA ultimately maintains the registries that govern SIDs for <t>While IANA ultimately maintains the registries that govern SIDs for
IETF-defined modules, various support tools (such as, at the time of IETF-defined modules, various support tools (such as, at the time of
writing, the YANG Catalog <xref target="yangcatalog"/>) writing, the YANG Catalog <xref target="yangcatalog"/>)
need to provide the support to enable SID assignment and use for need to provide the support to enable SID assignment and use for
modules still in IETF development. Developers of open-source or modules still in IETF development. Developers of open-source or
proprietary YANG modules also need to be able to serve as such proprietary YANG modules also need to be able to serve as such
entities autonomously, possibly forming alliances independent of the entities autonomously, possibly forming alliances independent of the
IETF, while still fitting in the overall SID number space managed by IETF, while still fitting in the overall SID number space managed by
IANA. Obviously, this process has a number of parallels to the IANA. Obviously, this process has a number of parallels to the
management of IP addresses, but also is very different.</t> management of IP addresses but is also very different.</t>
<section anchor="technical-objectives"> <section anchor="technical-objectives">
<name>Technical Objectives</name> <name>Technical Objectives</name>
<t>As discussed in the introduction, SIDs are intended as globally uniqu e <t>As discussed in <xref format="none" target="introduction">the Introdu ction</xref>, SIDs are intended as globally unique
(unsigned) integers.</t> (unsigned) integers.</t>
<t>Specifically, this means that:</t> <t>Specifically, this means that:</t>
<dl> <dl>
<dt><strong>Objective 1</strong> (<bcp14>MUST</bcp14>):</dt> <dt><strong>Objective 1</strong> (<bcp14>MUST</bcp14>):</dt>
<dd> <dd>
<t>any 63-bit unsigned integer is either <t>Any 63-bit unsigned integer either (1)&nbsp;is unassigned as a SI
unassigned as a SID or immutably maps to EXACTLY one YANG name. D or (2)&nbsp;immutably maps to EXACTLY one YANG name.
Only the transition from unassigned to that immutable mapping is Only the transition from unassigned to that immutable mapping is
defined.</t> defined.</t>
</dd> </dd>
</dl> </dl>
<t>This enables a recipient of a data structure employing SIDs to <t>This enables a recipient of a data structure employing SIDs to
translate them into the globally meaningful YANG names that the translate them into the globally meaningful YANG names that the
existing encodings of YANG data such as YANG-XML <xref target="RFC7950"/> and existing encodings of YANG data such as YANG-XML <xref target="RFC7950"/> and
YANG-JSON <xref target="RFC7951"/> employ today.</t> YANG-JSON <xref target="RFC7951"/> employ today.</t>
<t>The term YANG name is not defined outside this document, and YANG has <t>The term "YANG name" is not defined outside this document, and YANG h as
a complex system of names and entities that can have those names. a complex system of names and entities that can have those names.
Instead of defining the term technically, this set of objectives uses Instead of defining the term technically, this set of objectives uses
it in such a way that the overall objectives of YANG-SID can be it in such a way that the overall objectives of YANG-SID can be
achieved.</t> achieved.</t>
<t>A desirable objective is that:</t> <t>A desirable objective is that:</t>
<dl> <dl>
<dt><strong>Objective 2</strong> (<bcp14>SHOULD</bcp14>):</dt> <dt><strong>Objective 2</strong> (<bcp14>SHOULD</bcp14>):</dt>
<dd> <dd>
<t>any YANG name in active use has one SID assigned.</t> <t>Any YANG name in active use has one SID assigned.</t>
</dd> </dd>
</dl> </dl>
<t>This means that:</t> <t>This means that:</t>
<ol spacing="normal" type="1"><li> <ol spacing="normal" type="1"><li>
<t>There should not be YANG names without SIDs assigned</t> <t>There should not be YANG names without SIDs assigned.</t>
</li> </li>
<li> <li>
<t>YANG names should not have multiple SIDs assigned</t> <t>YANG names should not have multiple SIDs assigned.</t>
</li> </li>
</ol> </ol>
<t>These objectives are unattainable in full, because YANG names are not <t>These objectives are unattainable in full, because YANG names are not
necessarily born with a SID assignment, and because entirely autonomous necessarily born with a SID assignment and because entirely autonomous
entities might decide to assign SIDs for the same YANG name without entities might decide to assign SIDs for the same YANG name without
communicating ("like ships in the night"). communicating ("like ships in the night").
Note that as long as this autonomy is maintained, any single observer Note that as long as this autonomy is maintained, any single observer
will have the impression that Objective 2 is attained. will have the impression that Objective 2 is attained.
Only when entities that have acted autonomously start communicating, a Only when entities that have acted autonomously start communicating will a
deviation is observed.</t> deviation be observed.</t>
</section> </section>
<section anchor="module-evolution-versioning"> <section anchor="module-evolution-versioning">
<name>Module evolution, versioning</name> <name>Module Evolution and Versioning</name>
<t>YANG modules evolve (see <xref section="11" sectionFormat="of" target <t>YANG modules evolve (see <xref section="11" sectionFormat="of" target
="RFC7950"/>, <xref section="4.27" sectionFormat="of" target="RFC8407"/>). ="RFC7950"/> and <xref section="4.27" sectionFormat="of" target="RFC8407"/>).
The technical objectives listed above are states in terms that are The technical objectives listed above are states in terms that are
independent of this evolution.</t> independent of this evolution.</t>
<t>However, some modules are still in a very fluid state, and the <t>However, some modules are still in a very fluid state, and the
assignment of permanent SIDs to the YANG names created in them is less assignment of permanent SIDs to the YANG names created in them is less
desirable. This is not only true for new modules, but also for desirable. This is true not only for new modules but also for
emerging new revisions of existing stable modules.</t> emerging new revisions of existing stable modules.</t>
<dl> <dl>
<dt><strong>Objective 3</strong> (<bcp14>MUST</bcp14>):</dt> <dt><strong>Objective 3</strong> (<bcp14>MUST</bcp14>):</dt>
<dd> <dd>
<t>the SID management system is independent of any module versioning .</t> <t>The SID management system is independent of any module versioning .</t>
</dd> </dd>
</dl> </dl>
</section> </section>
<section anchor="solution-components-and-derived-objectives"> <section anchor="solution-components-and-derived-objectives">
<name>Solution Components and Derived Objectives</name> <name>Solution Components and Derived Objectives</name>
<t>A registration system is used in order to guarantee the uniqueness of <t>A registration system is used in order to guarantee the uniqueness of
SIDs. SIDs.
To be able to provide some autonomy in allocation (and avoid To be able to provide some autonomy in allocation (and avoid
information disclosure where it is not desirable), SIDs are registered information disclosure where it is not desirable), SIDs are registered
in blocks called "SID ranges".</t> in blocks called "SID ranges".</t>
skipping to change at line 350 skipping to change at line 397
</section> </section>
<section anchor="parties-roles"> <section anchor="parties-roles">
<name>Parties and Roles</name> <name>Parties and Roles</name>
<t>In the YANG development process, we can discern a number of parties <t>In the YANG development process, we can discern a number of parties
that are concerned with a YANG module:</t> that are concerned with a YANG module:</t>
<dl newline="true"> <dl newline="true">
<dt>module controller:</dt> <dt>module controller:</dt>
<dd> <dd>
<t>The owner of the YANG module, i.e., the controller <t>The owner of the YANG module, i.e., the controller
about its evolution.</t> about its evolution.</t>
<!-- [rfced] Section 2.4: Please clarify the meaning of "the
controller about its evolution". Are some words missing?
Original:
module controller:
The owner of the YANG module, i.e., the controller about its
evolution.
Possibly:
module controller:
The owner of the YANG module, i.e., the controller of the
module's evolution. -->
</dd> </dd>
<dt>registration entity:</dt> <dt>registration entity:</dt>
<dd> <dd>
<t>The controller of the module namespace, specifically also of the <t>The controller of the module namespace, specifically also of the
prefixes that are in common use. (This is not a required party.)</t> prefixes that are in common use. (This is not a required party.)</t>
</dd> </dd>
<dt>module repository:</dt> <dt>module repository:</dt>
<dd> <dd>
<t>An entity that supplies modules to module users. This can be <t>An entity that supplies modules to module users. This can be an
"official" (e.g., IANA for IETF modules) or unofficial (e.g., the "official" entity (e.g., IANA for IETF modules) or an "unofficial" entity (e.g.,
the
YANG Catalog <xref target="yangcatalog"/>). Not all repositories are in a posit ion to act as YANG Catalog <xref target="yangcatalog"/>). Not all repositories are in a posit ion to act as
a registry, i.e., as a permanent record for the information they a registry, i.e., as a permanent record for the information they
supply; these repositories need to recur to module owners as a supply; these repositories need to recur to module owners as a
stable source.</t> stable source.</t>
</dd> </dd>
<dt>module user:</dt> <dt>module user:</dt>
<dd> <dd>
<t>An entity that uses a module, after obtaining it from the module <t>An entity that uses a module, after obtaining it from the module
controller or a module repository.</t> controller or a module repository.</t>
</dd> </dd>
</dl> </dl>
<t>This set of parties needs to evolve to take on the additional roles <t>This set of parties needs to evolve to take on the additional roles
that the SID assignment process requires:</t> that the SID assignment process requires:</t>
<dl newline="true"> <dl newline="true">
<dt>SID assigner:</dt> <dt>SID assigner:</dt>
<dd> <dd>
<t>An entity that assigns SIDs for a module. Objective 2 aims at <t>An entity that assigns SIDs for a module. Objective 2 aims at
having only one SID assigner for each module. SID assigners having only one SID assigner for each module. SID assigners
preferably stay the same over a module development process; however preferably stay the same over a module development process; however,
this specification provides SID files to ensure an organized handover.</t> this specification provides ".sid" files to ensure an organized handover.</t>
</dd> </dd>
<dt>SID range registries:</dt> <dt>SID range registry:</dt>
<dd> <dd>
<t>The entities that supply a SID assigner with SID ranges that they can <t>An entity that supplies a SID assigner with SID ranges that it ca n
use in assigning SIDs for a module. (In this specification, there use in assigning SIDs for a module. (In this specification, there
is a structure with mega-ranges and individual SID ranges; this is is a structure with Mega-Ranges and individual SID ranges; this is
not relevant here.)</t> not relevant here.)</t>
</dd> </dd>
<dt>SID repository:</dt> <dt>SID repository:</dt>
<dd> <dd>
<t>An entity that supplies SID assignments to SID users, usually in the <t>An entity that supplies SID assignments to SID users, usually in the
form of a SID file.</t> form of a ".sid" file.</t>
</dd> </dd>
<dt>SID users:</dt> <dt>SID user:</dt>
<dd> <dd>
<t>The module user that uses the SIDs provided by a SID assigner for a YANG <t>The module user that uses the SIDs provided by a SID assigner for a YANG
module. SID users need to find SID assigners (or at least their SID module. SID users need to find SID assigners (or at least their SID
assignments).</t> assignments).</t>
</dd> </dd>
</dl> </dl>
<t>During the introduction of SIDs, the distribution of the SID roles to <t>As new SIDs are introduced, the distribution of the SID roles to
the existing parties for a YANG module will evolve.</t> the existing parties for a YANG module will evolve.</t>
<t>The desirable end state of this evolution is shown in <xref target="r oles-parties"/>.</t> <t>The desirable end state of this evolution is shown in <xref target="r oles-parties"/>.</t>
<table anchor="roles-parties"> <table anchor="roles-parties">
<name>Roles and Parties: Desired End State</name> <name>Roles and Parties: Desired End State</name>
<thead> <thead>
<tr> <tr>
<th align="left">Role</th> <th align="left">Role</th>
<th align="left">Party</th> <th align="left">Party</th>
</tr> </tr>
</thead> </thead>
skipping to change at line 430 skipping to change at line 491
<tr> <tr>
<td align="left">SID repository</td> <td align="left">SID repository</td>
<td align="left">module repository</td> <td align="left">module repository</td>
</tr> </tr>
<tr> <tr>
<td align="left">SID user</td> <td align="left">SID user</td>
<td align="left">module user (naturally)</td> <td align="left">module user (naturally)</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
<t>This grouping of roles and parties puts the module developer into a <t>This grouping of roles and parties puts the module developer in a
position where it can achieve the objectives laid out in this section position where it can achieve the objectives laid out in this section
(a "type-1", "SID-guiding" module controller). (a "type-1", "SID-guiding" module controller).
(While a third party might theoretically assign additional SIDs and (While a third party might theoretically assign additional SIDs and
conflict with objective 2, there is very little reason to do so if SID conflict with Objective 2, there is very little reason to do so if ".sid"
files are always provided by the module developer with the module.)</t> files are always provided by the module developer with the module.)</t>
<t>The rest of this section is concerned with the transition to this end <t>The rest of this section is concerned with the transition to this end
state.</t> state.</t>
<t>For existing modules, there is no SID file. The entity that stands i n <t>For existing modules, there is no ".sid" file. The entity that stand s in
as the SID assigner is not specified. This situation has the highest as the SID assigner is not specified. This situation has the highest
potential of a conflict with objective 2.</t> potential for conflict with Objective 2.</t>
<t>Similarly, for new module development, the module owner may not have <t>Similarly, for new module development, the module owner may not have
heard about SIDs or not be interested in assigning them (e.g., because heard about SIDs or may not be interested in assigning them (e.g., because
of lack of software or procedures within their organization).</t> of lack of software or procedures within their organization).</t>
<t>For these two cases (which we will call type-3, "SID-oblivious" modul <t>For these two cases (which we will call "type-3", "SID-oblivious" mod
e ule
controller), module repositories can act as a mediator, giving SID controllers), module repositories can act as a mediator, giving SID
users access to a SID assigner that is carefully chosen to be a likely users access to a SID assigner that is carefully chosen to be a likely
choice by other module repositories as well, maximizing the likelihood choice by other module repositories as well, maximizing the likelihood
of achieving objective 2.</t> of achieving Objective 2.
<t>If the module controller has heard about SIDs, but is not assigning
<!-- [rfced] Section 2.4: Because this sentence mentions two cases,
we changed "module controller" to "module controllers". If this is
incorrect, please clarify what "two cases" refers to.
Original:
For these two cases (which we will call type-3, "SID-oblivious"
module controller), module repositories can act as a mediator, giving
SID users access to a SID assigner that is carefully chosen to be a
likely choice by other module repositories as well, maximizing the
likelihood of achieving objective 2.
Currently:
For these two cases (which we will call "type-3", "SID-oblivious"
module controllers), module repositories can act as a mediator,
giving SID users access to a SID assigner that is carefully chosen to
be a likely choice by other module repositories as well, maximizing
the likelihood of achieving Objective 2. -->
</t>
<t>If a module controller has heard about SIDs but is not assigning
them yet, it can designate a SID assigner instead. This can lead to a them yet, it can designate a SID assigner instead. This can lead to a
stable, unique set of SID assignments being provided indirectly by a stable, unique set of SID assignments being provided indirectly by a
(type-2, "SID-aware") module developer. Entities offering designated ("type-2", "SID-aware") module developer. Entities offering designated
SID assigner services could make these available in an easy-to-use SID assigner services could make these available in an easy-to-use
way, e.g., via a Web interface.</t> way, e.g., via a web interface.</t>
<t>The entity acting as a SID assigner minimally needs to record the SID <t>The entity acting as a SID assigner minimally needs to record the SID
range it uses for the SID assignment. If the SID range registry can range it uses for the SID assignment. If the SID range registry can
record the module name and revision, and the assignment processes record the module name and revision and if the assignment processes
(including the software used) are stable, the SID assigner can (including the software used) are stable, the SID assigner can
theoretically reconstruct its assignments, but this is an invitation theoretically reconstruct its assignments, but this could invite
for implementation bugs.</t> implementation bugs.</t>
<t>SID assigners attending to a module in development (not yet stable) <t>SID assigners attending to a module in development (not yet stable)
need to decide whether SIDs for a new revision are re-assigned from need to decide whether SIDs for a new revision are reassigned from
scratch ("clean-slate") or use existing assignments from a previous scratch ("clean slate") or use existing assignments from a previous
revision as a base, only assigning new SIDs for new names. revision as a base, only assigning new SIDs for new names.
Once a module is declared stable, its SID assignments <bcp14>SHOULD</bcp14> be Once a module is declared stable, its SID assignments <bcp14>SHOULD</bcp14> be
declared stable as well (the exception being that, for existing YANG declared stable as well (except that, for existing YANG
modules, some review may be needed before this is done).</t> modules, some review may be needed before this is done).</t>
<t>This specification does not further discuss how mediating entities <t>This specification does not further discuss how mediating entities
such as designated SID assigners or SID repositories could operate; such as designated SID assigners or SID repositories could operate;
instead, it supplies objectives for their operation.</t> instead, it supplies objectives for their operation.</t>
</section> </section>
</section> </section>
<section anchor="sid-lifecycle"> <section anchor="sid-lifecycle">
<name>".sid" file lifecycle</name> <name>".sid" File Lifecycle</name>
<t>YANG is a language designed to model data accessed using one of the com patible <t>YANG is a language designed to model data accessed using one of the com patible
protocols (e.g. NETCONF <xref target="RFC6241"/>, RESTCONF <xref target="RFC8040 "/> and CORECONF <xref target="I-D.ietf-core-comi"/>). A protocols (e.g., NETCONF <xref target="RFC6241"/>, RESTCONF <xref target="RFC804 0"/>, and the CoAP Management Interface (CORECONF) <xref target="CORE-COMI"/>). A
YANG module defines hierarchies of data, including configuration, state data, YANG module defines hierarchies of data, including configuration, state data,
RPCs, actions and notifications.</t> RPCs, actions, and notifications.</t>
<t>Many YANG modules are not created in the context of constrained <t>Many YANG modules are not created in the context of constrained
applications. YANG modules can be implemented using NETCONF <xref target="RFC624 1"/> or applications. YANG modules can be implemented using NETCONF <xref target="RFC624 1"/> or
RESTCONF <xref target="RFC8040"/> without the need to assign SIDs.</t> RESTCONF <xref target="RFC8040"/> without the need to assign SIDs.</t>
<t>As needed, authors of YANG modules can assign SIDs to their YANG module s. In <t>As needed, authors of YANG modules can assign SIDs to their YANG module s. In
order to do that, they should first obtain a SID range from a registry and use order to do that, they should first obtain a SID range from a registry and use
that range to assign or generate SIDs to items of their YANG module. The that range to assign or generate SIDs to items in their YANG module. The
assignments can then be stored in a ".sid" file. For assignments can then be stored in a ".sid" file. For an
example on how this could be achieved, please refer to <xref target="sid-lifecyc example of how this could be achieved, please refer to <xref target="sid-lifecyc
le-ex"/>.</t> le-ex"/>.</t>
<t>Items introduced by a new revision of a YANG module are added to the li st of SIDs already assigned. <t>Items introduced by a new revision of a YANG module are added to the li st of SIDs already assigned.
When this is done during development of a new protocol document, it may be neces When this is done during the development of a new protocol document, it may be n
sary to make provisional assignments. ecessary to make provisional assignments.
They may get changed, revised or withdrawn during the development of a new stand They may get changed, revised, or withdrawn during the development of a new stan
ard. dard.
These provisional assignments are marked with a status of "unstable", These provisional assignments are marked with a status of "unstable",
so that they can be removed and the SID number possibly be reassigned so that they can be removed and the SID number possibly reassigned
for a different YANG schema name/path later during development. for a different YANG schema name/path later in the development process.
When the specification is advanced to a final document, then When the specification is advanced to a final document,
the assignment is marked with a status of "stable". the assignment is marked with a status of "stable".
During a period of development starting from a published During a period of development starting from a published
specification, two variants of the SID file should specification, two variants of the ".sid" file should
be made available by the tooling involved in that development: (1) a be made available by the tooling involved in that development: (1) a
"published" SID file with the existing stable SID assignments only "published" ".sid" file with the existing stable SID assignments only
(which the development effort should keep stable), as (which the development effort should keep stable), as
well as (2) an "unpublished" SID file that also contains the unstable well as (2) an "unpublished" ".sid" file that also contains the unstable
SID assignments.</t> SID assignments.</t>
<t>Registration of the ".sid" file associated to a YANG module is optional <t>Registration of the ".sid" file associated with a YANG module is option
but al but
recommended, <!-- sic. --> in order to promote interoperability between devices recommended, in order to promote interoperability between devices and to avoid d
and to avoid duplicate uplicate
allocation of SIDs to a single YANG module. Different registries might have allocation of SIDs to a single YANG module. Different registries might have
different requirements for the registration and publication of the ".sid" different requirements for the registration and publication of the ".sid"
files. For a diagram of one of the possibilities, please refer to the activity files. For a diagram of one possible scenario, please refer to the activity
diagram on <xref target="fig-sid-file-creation"/> in <xref target="sid-lifecycle diagram shown in <xref target="fig-sid-file-creation"/> in <xref target="sid-lif
-ex"/>.</t> ecycle-ex"/>.
<t>Each time a YANG module or one of its imported module(s) or included
submodule(s) is updated, a new ".sid" file <bcp14>MAY</bcp14> be created if the <!-- [rfced] Section 3: We found the comment "sic." embedded in the
new or middle of this sentence in the provided XML file. We removed the
comment. We do not see an issue with the text. Is any action needed
related to the comment?
Original (comment placed in square brackets):
Registration of the ".sid" file associated to a YANG module is
optional but recommended, [sic.] in order to promote
interoperability between devices and to avoid duplicate allocation
of SIDs to a single YANG module.
If you were thinking of rephrasing, perhaps:
Registration of the ".sid" file associated with a YANG module is
optional but recommended; doing so would promote interoperability
between devices and avoid duplicate allocation of SIDs to a single
YANG module. -->
</t>
<t>Each time a YANG module, one or more of its imported modules, or one or
more of its included
submodules are updated, a new ".sid" file <bcp14>MAY</bcp14> be created if the n
ew or
updated items will need SIDs. All the SIDs present in the previous version of updated items will need SIDs. All the SIDs present in the previous version of
the ".sid" file <bcp14>MUST</bcp14> be present in the new version as well. The c reation of the ".sid" file <bcp14>MUST</bcp14> be present in the new version as well. The c reation of
this new version of the ".sid" file <bcp14>SHOULD</bcp14> be performed using an automated this new version of the ".sid" file <bcp14>SHOULD</bcp14> be performed using an automated
tool.</t> tool.
<!-- [rfced] Section 3: This sentence was difficult to follow. We
updated it as noted below. If this is incorrect, please clarify the
text.
Original:
Each time a YANG module or one of its imported module(s) or included
submodule(s) is updated, a new ".sid" file MAY be created if the new
or updated items will need SIDs.
Currently:
Each time a YANG module, one or more of its imported modules, or one
or more of its included submodules are updated, a new ".sid" file MAY
be created if the new or updated items will need SIDs. -->
</t>
<t>If a new revision requires more SIDs than initially allocated, a new SI D range <t>If a new revision requires more SIDs than initially allocated, a new SI D range
<bcp14>MUST</bcp14> be added to the 'assignment-range' as defined in <xref targe t="sid-file-format"/>. <bcp14>MUST</bcp14> be added to the 'assignment-range' item as defined in <xref target="sid-file-format"/>.
These extra SIDs are used for subsequent assignments.</t> These extra SIDs are used for subsequent assignments.</t>
<t>For an example of this update process, see activity diagram <t>For an example of this update process, see the activity diagram shown i n
<xref target="fig-sid-file-update"/> in <xref target="sid-lifecycle-ex"/>.</t> <xref target="fig-sid-file-update"/> in <xref target="sid-lifecycle-ex"/>.</t>
</section> </section>
<section anchor="sid-file-format"> <section anchor="sid-file-format">
<name>".sid" file format</name> <name>".sid" File Format</name>
<t>".sid" files are used to persist and publish SIDs assigned to the diffe rent <t>".sid" files are used to persist and publish SIDs assigned to the diffe rent
YANG items of a specific YANG module.</t> YANG items in a specific YANG module.</t>
<t>It has the following structure:</t> <t>The following tree diagram <xref target="RFC8340"/> provides an overvie
w of the data
model:</t>
<figure> <figure>
<name>YANG tree for ietf-sid-file</name> <name>YANG Tree for &apos;ietf-sid-file&apos;</name>
<!-- [rfced] Please review the "type" attribute of each sourcecode
element in the XML file to ensure correctness*.
If the current list of preferred values for "type" (https://www.rfc-editor.org/m
aterials/sourcecode-types.txt)
does not contain an applicable type, please let us know. Also, it is
acceptable to leave the "type" attribute not set.
* "<sourcecode type="yang-sid">" and
"<sourcecode type="yang-instance-data">" are not included on the
sourcecode-types page. Would you like us to request that they be
added? If not, please provide sourcecode types that are currently
valid. -->
<sourcecode type="yangtree"><![CDATA[ <sourcecode type="yangtree"><![CDATA[
module: ietf-sid-file module: ietf-sid-file
structure sid-file: structure sid-file:
+-- module-name yang:yang-identifier +-- module-name yang:yang-identifier
+-- module-revision? revision-identifier +-- module-revision? revision-identifier
+-- sid-file-version? sid-file-version-identifier +-- sid-file-version? sid-file-version-identifier
+-- sid-file-status? enumeration +-- sid-file-status? enumeration
+-- description? string +-- description? string
+-- dependency-revision* [module-name] +-- dependency-revision* [module-name]
| +-- module-name yang:yang-identifier | +-- module-name yang:yang-identifier
| +-- module-revision revision-identifier | +-- module-revision revision-identifier
+-- assignment-range* [entry-point] +-- assignment-range* [entry-point]
| +-- entry-point sid | +-- entry-point sid
| +-- size uint64 | +-- size uint64
+-- item* [namespace identifier] +-- item* [namespace identifier]
+-- status? enumeration +-- status? enumeration
+-- namespace enumeration +-- namespace enumeration
+-- identifier union +-- identifier union
+-- sid sid +-- sid sid
]]></sourcecode> ]]></sourcecode>
</figure> </figure>
<t>The following YANG module defines the structure of this file, encoding </section>
is <section anchor="sid-yang-module">
<name>&quot;.sid&quot; File YANG Module</name>
<t>The following YANG module defines the structure of this file. Encoding
is
performed in JSON <xref target="RFC8259"/> using the rules defined in <xref targ et="RFC7951"/>. performed in JSON <xref target="RFC8259"/> using the rules defined in <xref targ et="RFC7951"/>.
It references ietf-yang-types defined in <xref target="RFC6991"/> and ietf-yang- This module imports 'ietf-yang-types' <xref target="RFC6991"/> and 'ietf-yang-st
structure-ext defined in <xref target="RFC8791"/>.</t> ructure-ext' <xref target="RFC8791"/>. It also references <xref target="RFC7950
<t>RFC Ed.: please update the date of the module and Copyright if needed a "/> and <xref target="RFC8407"/>.
nd remove this note.</t>
<!-- [rfced] Section 4: Does "structure of this file" mean "the
'ietf-sid-file' structure"? If not, should the text be clarified? -->
</t>
<!-- [rfced] Note that the module parses successfully when the
ietf option is not used. However, when the ietf option is used, we
get the following warning (note that the double hyphen for ietf-help
has been reduced to a single hyphen):
ietf-sid-file@2024-06-17.yang:56: warning: RFC 8407: Appendix B: The text abo
ut which RFC this module is part of seems to be missing or is not correct (see p
yang -ietf-help for details).
Please review, and let us know if any updates are needed. -->
<figure> <figure>
<name>YANG module ietf-sid-file</name> <name>YANG Module &apos;ietf-sid-file&apos;</name>
<sourcecode type="yang" markers="true" name="ietf-sid-file@2023-10-27.ya <sourcecode name="ietf-sid-file@2024-06-17.yang" type="yang" markers="tr
ng"><![CDATA[ ue"><![CDATA[
module ietf-sid-file { module ietf-sid-file {
yang-version 1.1; yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-sid-file"; namespace "urn:ietf:params:xml:ns:yang:ietf-sid-file";
prefix sid; prefix sid;
import ietf-yang-types { import ietf-yang-types {
prefix yang; prefix yang;
reference "RFC 6991: Common YANG Data Types."; reference
"RFC 6991: Common YANG Data Types";
} }
import ietf-yang-structure-ext { import ietf-yang-structure-ext {
prefix sx; prefix sx;
reference "RFC 8791: YANG Data Structure Extensions."; reference
"RFC 8791: YANG Data Structure Extensions";
} }
organization organization
"IETF Core Working Group"; "IETF CORE Working Group";
contact contact
"WG Web: <https://datatracker.ietf.org/wg/core/> "WG Web: <https://datatracker.ietf.org/wg/core/>
WG List: <mailto:core@ietf.org> WG List: <mailto:core@ietf.org>
Editor: Michel Veillette Editor: Michel Veillette
<mailto:michel.veillette@trilliant.com> <mailto:michel.veillette@trilliant.com>
Editor: Andy Bierman Editor: Andy Bierman
<mailto:andy@yumaworks.com> <mailto:andy@yumaworks.com>
Editor: Alexander Pelov Editor: Alexander Pelov
<mailto:a@ackl.io> <mailto:a@ackl.io>
Editor: Ivaylo Petrov Editor: Ivaylo Petrov
<mailto:ivaylopetrov@google.com>"; <mailto:ivaylopetrov@google.com>";
description description
"Copyright (c) 2023 IETF Trust and the persons identified as "This module defines the structure of the '.sid' files.
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC XXXX Each '.sid' file contains the mapping between each
(https://www.rfc-editor.org/info/rfcXXXX); see the RFC itself string identifier defined by a YANG module and a
for full legal notices. corresponding numeric value called a YANG-SID.
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL
NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED', NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED',
'MAY', and 'OPTIONAL' in this document are to be interpreted as 'MAY', and 'OPTIONAL' in this document are to be interpreted as
described in BCP 14 (RFC 2119) (RFC 8174) when, and only when, described in BCP 14 (RFC 2119) (RFC 8174) when, and only when,
they appear in all capitals, as shown here. they appear in all capitals, as shown here.
This module defines the structure of the .sid files. Copyright (c) 2024 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Each .sid file contains the mapping between each Redistribution and use in source and binary forms, with or
string identifier defined by a YANG module and a without modification, is permitted pursuant to, and subject to
corresponding numeric value called YANG SID."; the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).";
revision 2023-10-27 { revision 2024-06-17 {
description description
"Initial revision."; "Initial revision.";
reference reference
"[RFC XXXX] YANG Schema Item iDentifier (YANG SID)"; "RFC 9595: YANG Data Model for YANG Schema Item iDentifiers
(YANG-SIDs)";
} }
typedef revision-identifier { typedef revision-identifier {
type string { type string {
pattern '[0-9]{4}-[0-9]{2}-[0-9]{2}'; pattern '[0-9]{4}-[0-9]{2}-[0-9]{2}';
} }
description description
"Represents a date in YYYY-MM-DD format."; "Represents a date in YYYY-MM-DD format.";
} }
typedef sid-file-version-identifier { typedef sid-file-version-identifier {
type uint32; type uint32;
description description
"Represents the version of a .sid file."; "Represents the version of a '.sid' file.";
} }
typedef sid { typedef sid {
type uint64 { type uint64 {
range "0..9223372036854775807"; range "0..9223372036854775807";
} }
description description
"YANG Schema Item iDentifier"; "YANG Schema Item iDentifier.";
reference reference
"[RFC XXXX] YANG Schema Item iDentifier (YANG SID)"; "RFC 9595: YANG Data Model for YANG Schema Item iDentifiers
(YANG-SIDs)";
} }
typedef schema-node-path { typedef schema-node-path {
type string { type string {
pattern pattern
'/[a-zA-Z_][a-zA-Z0-9\-_.]*:[a-zA-Z_][a-zA-Z0-9\-_.]*' + '/[a-zA-Z_][a-zA-Z0-9\-_.]*:[a-zA-Z_][a-zA-Z0-9\-_.]*' +
'(/[a-zA-Z_][a-zA-Z0-9\-_.]*(:[a-zA-Z_][a-zA-Z0-9\-_.]*)?)*'; '(/[a-zA-Z_][a-zA-Z0-9\-_.]*(:[a-zA-Z_][a-zA-Z0-9\-_.]*)?)*';
} }
description description
"A schema-node path is an absolute YANG schema node identifier "A schema-node path is an absolute YANG schema-node
as defined by the YANG ABNF rule absolute-schema-nodeid, identifier as defined by the YANG ABNF rule
except that module names are used instead of prefixes. 'absolute-schema-nodeid', except that module names are used
instead of prefixes.
This string additionally follows the following rules: This string additionally follows the following rules:
o The leftmost (top-level) data node name is always in the - The leftmost (top-level) data node name is always in the
namespace-qualified form. namespace-qualified form.
o Any subsequent schema node name is in the - Any subsequent schema-node name is in the
namespace-qualified form if the node is defined in a module namespace-qualified form if the node is defined in a
other than its parent node, and the simple form is used module other than its parent node. Otherwise, the
otherwise. No predicates are allowed."; simple form is used. No predicates are allowed.";
reference reference
"RFC 7950, The YANG 1.1 Data Modeling Language; "RFC 7950: The YANG 1.1 Data Modeling Language,
Section 6.5: Schema Node Identifier;"; Section 6.5: Schema Node Identifier";
} }
sx:structure sid-file { sx:structure sid-file {
uses sid-file-contents; uses sid-file-contents;
} }
grouping sid-file { grouping sid-file {
description "A grouping that contains a YANG container description
representing the file structure of a .sid files."; "A grouping that contains a YANG container
representing the file structure of a '.sid' file.";
container sid-file { container sid-file {
description description
"A wrapper container that together with the sx:structure "A wrapper container that together with the 'sx:structure'
extension marks the YANG data structures inside as not being extension marks the YANG data structures inside as not
intended to be implemented as part of a configuration being intended to be implemented as part of a
datastore or as an operational state within the server."; configuration datastore or as an operational state within
the server.";
uses sid-file-contents; uses sid-file-contents;
} }
} }
grouping sid-file-contents { grouping sid-file-contents {
description description
"A grouping that defines the contents of a container that "A grouping that defines the contents of a container that
represents the file structure of a .sid files."; represents the file structure of a '.sid' file.";
leaf module-name { leaf module-name {
type yang:yang-identifier; type yang:yang-identifier;
mandatory true; mandatory true;
description description
"Name of the YANG module associated with this .sid file."; "Name of the YANG module associated with this
'.sid' file.";
} }
leaf module-revision { leaf module-revision {
type revision-identifier; type revision-identifier;
description description
"Revision of the YANG module associated with this .sid "Revision of the YANG module associated with this '.sid'
file. file.
This leaf is not present if no revision statement is This leaf is not present if no revision statement is
defined in the YANG module."; defined in the YANG module.";
} }
leaf sid-file-version { leaf sid-file-version {
type sid-file-version-identifier; type sid-file-version-identifier;
default 0; default "0";
description description
"Optional leaf that specifies the version number of the "Optional leaf that specifies the version number of the
.sid file. .sid files and the version sequence are '.sid' file. '.sid' files and the version sequence are
specific to a given YANG module revision. This number specific to a given YANG module revision. This number
starts at zero when there is a new YANG module revision and starts at zero when there is a new YANG module revision
increases monotonically. This number can distinguish and increases monotonically. This number can distinguish
updates to the .sid file which are the result of new updates to the '.sid' file that are the result of new
processing, or the result of reported errata."; processing or reported errata.";
} }
leaf sid-file-status { leaf sid-file-status {
type enumeration { type enumeration {
enum unpublished { enum unpublished {
description description
"This .sid file is unpublished [RFC8407], also called "This '.sid' file is unpublished (RFC 8407) and is
a work-in-progress or workfile. also called a work-in-progress or workfile.
This may be when it accompanies an unpublished YANG This may be when it accompanies an unpublished YANG
module, or when only the .sid file itself is module or when only the '.sid' file itself is
unpublished. unpublished.
The 'item' list MAY contain entries with a status The 'item' list MAY contain entries with a status
value of 'unstable'."; value of 'unstable'.";
} reference
enum published { "RFC 8407: Guidelines for Authors and Reviewers of
description Documents Containing YANG Data Models";
"This .sid file is published, for a published YANG }
module. The 'item' list MUST NOT contain entries with enum published {
a status value of 'unstable'."; description
} "This '.sid' file is published, for a published YANG
module. The 'item' list MUST NOT contain entries
with a status value of 'unstable'.";
}
} }
default published; default "published";
description description
"Optional leaf that specifies the status of the "Optional leaf that specifies the status of the
.sid file."; '.sid' file.";
} }
leaf description { leaf description {
type string; type string;
description description
"Free-form meta information about the generated file. It "Free-form meta-information about the generated file. It
might include .sid file generation tool and time among might include a '.sid' file generation tool and time,
other things."; among other things.";
} }
list dependency-revision { list dependency-revision {
key "module-name"; key "module-name";
description description
"Information about the revision used during the .sid file "Information about the revision used during the
generation of each YANG module that the module in '.sid' file generation of each YANG module that the
'module-name' imported."; module in 'module-name' imported.";
leaf module-name { leaf module-name {
type yang:yang-identifier; type yang:yang-identifier;
description description
"Name of the YANG module, dependency of 'module-name', "Name of the YANG module, dependency of 'module-name',
for which revision information is provided."; for which revision information is provided.";
} }
leaf module-revision { leaf module-revision {
type revision-identifier; type revision-identifier;
mandatory true; mandatory true;
description description
"Revision of the YANG module, dependency of "Revision of the YANG module, dependency of
'module-name', for which revision information is 'module-name', for which revision information is
provided."; provided.";
} }
} }
list assignment-range { list assignment-range {
key "entry-point"; key "entry-point";
description description
"YANG SID range(s) allocated to the YANG module identified "YANG-SID Range(s) allocated to the YANG module
by 'module-name' and 'module-revision'. identified by 'module-name' and 'module-revision'.
- The YANG SID range first available value is entry-point - The first available value in the YANG-SID Range is
and the last available value in the range is 'entry-point', and the last available value in the
(entry-point + size - 1). range is ('entry-point' + size - 1).
- The YANG SID ranges specified by all assignment-ranges - The YANG-SID Ranges specified by all
MUST NOT overlap."; 'assignment-range' entries MUST NOT overlap.";
leaf entry-point { leaf entry-point {
type sid; type sid;
description description
"Lowest YANG SID available for assignment."; "Lowest YANG-SID available for assignment.";
} }
leaf size { leaf size {
type uint64; type uint64;
mandatory true; mandatory true;
description description
"Number of YANG SIDs available for assignment."; "Number of YANG-SIDs available for assignment.";
} }
} }
list item { list item {
key "namespace identifier"; key "namespace identifier";
unique "sid"; unique "sid";
description description
"Each entry within this list defines the mapping between "Each entry within this list defines the mapping between
a YANG item string identifier and a YANG SID. This list a YANG item string identifier and a YANG-SID. This list
MUST include a mapping entry for each YANG item defined by MUST include a mapping entry for each YANG item defined
the YANG module identified by 'module-name' and by the YANG module identified by 'module-name' and
'module-revision'."; 'module-revision'.";
leaf status { leaf status {
type enumeration { type enumeration {
enum stable { enum stable {
value 0; value 0;
description "This SID allocation has been published as description
the stable allocation for the given "This SID allocation has been published as the
namespace and identifier."; stable allocation for the given namespace and
identifier.";
} }
enum unstable { enum unstable {
value 1; value 1;
description "This SID allocation has been done during a description
development process; it is not yet stable."; "This SID allocation has been done during a
development process; it is not yet stable.";
} }
enum obsolete { enum obsolete {
value 2; value 2;
description "This SID allocation is no longer in use. description
It is recorded to avoid reallocation of "This SID allocation is no longer in use. It is
its SID value."; recorded to avoid reallocation of its SID value.";
} }
} }
default stable; default "stable";
description description
"The status field contains information about the stability "The status field contains information about the
of the allocation. For each specific SID value, over time stability of the allocation. For each specific SID
it can only transition from unstable to stable, value, over time it can only transition from
and possibly from stable to obsolete."; 'unstable' to 'stable', and possibly from 'stable' to
'obsolete'.";
} }
leaf namespace { leaf namespace {
type enumeration { type enumeration {
enum module { enum module {
value 0; value 0;
description description
"All module and submodule names share the same "All module and submodule names share the same
global module identifier namespace."; global module identifier namespace.";
} }
enum identity { enum identity {
value 1; value 1;
description description
"All identity names defined in a module and its "All identity names defined in a module and its
submodules share the same identity identifier submodules share the same identity identifier
namespace."; namespace.";
} }
enum feature { enum feature {
value 2; value 2;
description description
"All feature names defined in a module and its "All feature names defined in a module and its
submodules share the same feature identifier submodules share the same feature identifier
namespace."; namespace.";
} }
enum data { enum data {
value 3; value 3;
description description
"The namespace for all data nodes, as defined in "The namespace for all data nodes, as defined in
YANG."; YANG.";
reference
"RFC 7950: The YANG 1.1 Data Modeling Language";
} }
} }
description description
"Namespace of the YANG item for this mapping entry."; "Namespace of the YANG item for this mapping entry.";
} }
leaf identifier { leaf identifier {
type union { type union {
type yang:yang-identifier; type yang:yang-identifier;
type schema-node-path; type schema-node-path;
} }
description description
"String identifier of the YANG item for this mapping "String identifier of the YANG item for this mapping
entry. entry.
If the corresponding 'namespace' field is 'module', If the corresponding 'namespace' field is 'module',
'feature', or 'identity', then this field MUST 'feature', or 'identity', then this field MUST
contain a valid YANG identifier string. contain a valid YANG identifier string.
If the corresponding 'namespace' field is 'data', If the corresponding 'namespace' field is 'data',
then this field MUST contain a valid schema-node then this field MUST contain a valid schema-node
path."; path.";
} }
leaf sid { leaf sid {
type sid; type sid;
mandatory true; mandatory true;
description description
"YANG SID assigned to the YANG item for this mapping "YANG-SID assigned to the YANG item for this mapping
entry."; entry.";
} }
} }
} }
} }
]]></sourcecode> ]]></sourcecode>
</figure> </figure>
<!-- [rfced] Section 4: We see Andy Bierman listed in the YANG
module as an editor of this document, but he is not listed as an
editor or author on the first page or in the Authors' Addresses
section.
Also, the email address for Alexander Pelov in the YANG module
is different from the email address
(alexander.pelov@imt-atlantique.fr) shown in the Authors' Addresses
section. Should Alexander Pelov's email address be made to match in
both places? If yes, which address is preferred?
Original:
Editor: Michel Veillette
<mailto:michel.veillette@trilliant.com>
Editor: Andy Bierman
<mailto:andy@yumaworks.com>
Editor: Alexander Pelov
<mailto:a@ackl.io>
Editor: Ivaylo Petrov
<mailto:ivaylopetrov@google.com>";
...
Contributors
Andy Bierman
YumaWorks
...
-->
<!-- [rfced] Section 4:
a) Should RFCs 5234 ("Augmented BNF for Syntax Specifications: ABNF")
and 6020 be cited here?
Original:
description
"A schema-node path is an absolute YANG schema node identifier
as defined by the YANG ABNF rule absolute-schema-nodeid,
except that module names are used instead of prefixes.
...
reference
"RFC 7950, The YANG 1.1 Data Modeling Language;
Section 6.5: Schema Node Identifier;";
Possibly:
description
"A schema-node path is an absolute YANG schema-node
identifier as defined by the YANG ABNF rule
'absolute-schema-nodeid' (RFC 5234, RFC 6020), except that
module names are used instead of prefixes.
...
reference
"RFC 5234: Augmented BNF for Syntax Specifications: ABNF
RFC 6020: YANG - A Data Modeling Language for the Network
Configuration Protocol (NETCONF)
RFC 7950: The YANG 1.1 Data Modeling Language,
Section 6.5: Schema Node Identifier";
If cited, the listing for RFC 5234 would be added to the
Normative References section.
[LB] Removed part b)
c) As it appears that updates to the .sid file are only sometimes
the result of new processing or reported errata, we updated this
sentence accordingly. If this is incorrect, please provide
clarifying text.
Original:
This number can distinguish
updates to the .sid file which are the result of new
processing, or the result of reported errata.";
Currently:
This number can distinguish
updates to the ".sid" file that are the result of new
processing or reported errata.";
[LB] Removed part d)
e) These sentences are difficult to follow. Does the first comma
indicate that "... of the YANG module" and "dependency of
'module-name'" mean the same thing, or are two items listed?
Original:
leaf module-name {
type yang:yang-identifier;
description
"Name of the YANG module, dependency of 'module-name',
for which revision information is provided.";
}
leaf module-revision {
type revision-identifier;
mandatory true;
description
"Revision of the YANG module, dependency of
'module-name', for which revision information is
provided.";
}
Possibly (if two items):
leaf module-name {
type yang:yang-identifier;
description
"Name of the YANG module and the dependency of
'module-name',for which revision information is
provided.";
}
leaf module-revision {
type revision-identifier;
mandatory true;
description
"Revision of the YANG module and the dependency of
'module-name', for which revision information is
provided.";
} -->
</section> </section>
<!-- [rfced] Security Considerations: Authors and *[AD]:
This section does not follow the template specified on the
"YANG module security considerations" page at
<https://wiki.ietf.org/group/ops/yang-security-guidelines>, which
says "Each specification that defines one or more YANG modules MUST
contain a section that discusses security considerations relevant to
those modules. This section MUST be patterned after the latest
approved template ...."
Please also note the following paragraph on the "YANG module security
considerations" page:
'Note: [RFC 8446], [RFC6241], [RFC6242], [RFC8341], and [RFC8040] must
be "normative references".'
Per this note, we moved [RFC6241] and [RFC8341] from the Informative
References section to the Normative References section. [RFC6242]
and [RFC8446] are neither cited nor listed; please let us know how
this should be resolved.
* We will need AD approval if (1) the Security Considerations section
is to be left "as is" and (2) RFCs 6242 and 8446 are not to be cited.
Please review the document and the "YANG module security
considerations" page, and advise. -->
<section anchor="security-considerations"> <section anchor="security-considerations">
<name>Security Considerations</name> <name>Security Considerations</name>
<t>This document defines a new type of identifier used to encode data that are modeled in YANG <xref target="RFC7950"/>. <t>This document defines a new type of identifier used to encode data that are modeled in YANG <xref target="RFC7950"/>.
This new identifier maps semantic concepts to integers, and if the This new identifier maps semantic concepts to integers, and if the
source of this mapping is not trusted, then new security risks might source of this mapping is not trusted, then new security risks might
occur if an attacker can control the mapping.</t> occur if an attacker can control the mapping.</t>
<t>At the time of writing, it is expected that the SID files will be <t>At the time of writing, it is expected that the ".sid" files will be
processed by a software developer, within a software development processed by a software developer, within a software development
environment. Developers are advised to only import SID files from environment. Developers are advised to only import ".sid" files from
authoritative sources. IANA is the authoritative source for IETF authoritative sources. IANA is the authoritative source for IETF-managed
managed YANG modules.</t> YANG modules.</t>
<t>Conceptually, SID files could be processed by less-constrained target <t>Conceptually, ".sid" files could be processed by less-constrained targe
t
systems such as network management systems. Such systems need to take systems such as network management systems. Such systems need to take
extra care to make sure that they are only processing SID files from extra care to make sure that they are only processing ".sid" files from
authoritative sources, as authoritative as the YANG modules that they authoritative sources that are as authoritative as the YANG modules that they
are using.</t> are using.</t>
<t>SID files are identified with and can employ <em>dereferenceable <t>".sid" files are identified with and can employ <em>dereferenceable
identifiers</em>, i.e., identifiers that could lead implementations in identifiers</em>, i.e., identifiers that could lead implementations in
certain situations to automatically perform a remote access the target certain situations to automatically perform remote access, the target
of which is indicated at least partially by those identifiers. of which is indicated at least partially by those identifiers.
This can give an attacker information from and/or control over such This can give an attacker information from and/or control over such
accesses, which can have security and privacy implications. accesses, which can have security and privacy implications.
Please also see Sections <xref target="I-D.bormann-t2trg-deref-id" section="5" s Please also see Sections <xref target="DEREF-ID" section="6" sectionFormat="bare
ectionFormat="bare"/> and <xref target="I-D.bormann-t2trg-deref-id" section="6" "/> and <xref target="DEREF-ID" section="7" sectionFormat="bare"/> of <xref targ
sectionFormat="bare"/> of <xref target="I-D.bormann-t2trg-deref-id"/> et="DEREF-ID"/>
for further considerations that may be applicable.</t> for further considerations that may be applicable.
<!-- [rfced] Section 5: Because Section 5 of
draft-bormann-t2trg-deref-id is "IANA Considerations" and is only
one sentence long, and also because Sections 6 and 7 of
draft-bormann-t2trg-deref-id are "Security considerations" and
"Privacy considerations", respectively, we updated the section
numbers here accordingly. Please let us know any concerns.
Original:
Please
also see Sections 5 and 6 of [I-D.bormann-t2trg-deref-id] for further
considerations that may be applicable.
Currently:
Please
also see Sections 6 and 7 of [DEREF-ID] for further considerations
that may be applicable. -->
</t>
</section> </section>
<section anchor="IANA"> <section anchor="IANA">
<name>IANA Considerations</name> <name>IANA Considerations</name>
<section anchor="yang-namespace-registration"> <section anchor="yang-namespace-registration">
<name>YANG Namespace Registration</name> <name>YANG Namespace Registration</name>
<t>This document registers the following XML namespace URN in the "IETF XML <t>This document registers the following XML namespace URN in the "IETF XML
Registry", following the format defined in <xref target="RFC3688"/>:</t> Registry", following the format defined in <xref target="RFC3688"/>:</t>
<t>URI: please assign urn:ietf:params:xml:ns:yang:ietf-sid-file</t> <dl spacing="compact">
<t>Registrant Contact: The IESG.</t> <dt>URI:</dt><dd>urn:ietf:params:xml:ns:yang:ietf-sid-file</dd>
<t>XML: N/A, the requested URI is an XML namespace.</t> <dt>Registrant Contact:</dt><dd>The IESG.</dd>
<t>Reference: RFC XXXX</t> <dt>XML:</dt><dd>N/A; the requested URI is an XML namespace.</dd>
<t>// RFC Ed.: please replace XXXX with RFC number and remove this note< <dt>Reference:</dt><dd>RFC 9595</dd>
/t> </dl>
</section> </section>
<section anchor="iana-module-registration"> <section anchor="iana-module-registration">
<name>Register ".sid" File Format Module</name> <name>".sid" File Format Module Registration</name>
<t>This document registers one YANG module in the "YANG Module Names" re gistry <xref target="RFC6020"/>:</t> <t>This document registers one YANG module in the "YANG Module Names" re gistry <xref target="RFC6020"/>:</t>
<ul spacing="normal"> <dl spacing="compact">
<li> <dt>Name:</dt><dd>ietf-sid-file</dd>
<t>name: ietf-sid-file</t> <dt>Namespace:</dt><dd>urn:ietf:params:xml:ns:yang:ietf-sid-file</dd>
</li> <dt>Prefix:</dt><dd>sid</dd>
<li> <dt>Reference:</dt><dd>RFC 9595</dd>
<t>namespace: urn:ietf:params:xml:ns:yang:ietf-sid-file</t> </dl>
</li>
<li>
<t>prefix: sid</t>
</li>
<li>
<t>reference: RFC XXXX</t>
</li>
</ul>
<t>// RFC Ed.: please replace XXXX with RFC number and remove this note<
/t>
</section> </section>
<section anchor="mega-range-registry"> <section anchor="mega-range-registry">
<name>Create new IANA Registry: "YANG SID Mega-Range" registry</name> <name>New IANA Registry: YANG-SID Mega-Ranges</name>
<t>The name of this registry is "YANG SID Mega-Range". This registry is <t>The name of this registry is "YANG-SID Mega-Ranges". This registry is
used to record the delegation of the management of a block of SIDs to third part used to record the delegation of the management of a block of SIDs to third par
ies (such as SDOs or registrars).</t> ties (such as Standards Development Organizations (SDOs) or registrars).</t>
<section anchor="structure"> <section anchor="structure">
<name>Structure</name> <name>Structure</name>
<t>Each entry in this registry must include:</t> <t>Each entry in this registry must include:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The entry point (first SID) of the registered SID block.</t> <t>The entry point (first SID) of the registered SID block.</t>
</li> </li>
<li> <li>
<t>The size of the registered SID block. <t>The size of the registered SID block.
The size <bcp14>SHOULD</bcp14> be one million (1 000 000) SIDs, The size <bcp14>SHOULD</bcp14> be one million (1,000,000) SIDs,
it <bcp14>MAY</bcp14> exceptionally be a multiple of 1 000 000.</t> but in exceptional cases,
it <bcp14>MAY</bcp14> be a multiple of 1,000,000.</t>
</li> </li>
<li> <li>
<t>The policy of SID range allocations: Public, Private or Both.</ t> <t>The policy of SID range allocations: Public, Private, or both.< /t>
</li> </li>
<li> <li>
<t>The contact information of the requesting organization includin g: <t>The contact information of the requesting organization, includi ng the following:
</t> </t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>Organization name</t> <t>Organization name.</t>
</li> </li>
<li> <li>
<t>URL</t> <t>URL.</t>
</li> </li>
</ul> </ul>
</li> </li>
</ul> </ul>
</section> </section>
<section anchor="allocation-policy"> <section anchor="allocation-policy">
<name>Allocation policy</name> <name>Allocation Policy</name>
<t>The IANA policy for future additions to this registry is "Expert Re view" <xref target="RFC8126"/>.</t> <t>The IANA policy for future additions to this registry is "Expert Re view" <xref target="RFC8126"/>.</t>
<t>An organization requesting to manage a YANG SID Range (and thus hav e an entry in the YANG SID Mega-Range Registry), must ensure the following capac ities:</t> <t>An organization requesting to manage a YANG-SID Range (and thus hav e an entry in the "YANG-SID Mega-Ranges" registry) must ensure the following cap acities:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The capacity to manage and operate a YANG SID Range Registry. A <t>The capacity to manage and operate a registry of YANG-SID Range
YANG SID Range Registry <bcp14>MUST</bcp14> provide the following information f s. A registry of YANG-SID Ranges <bcp14>MUST</bcp14> provide the following infor
or all YANG SID Ranges allocated by the Registry: mation for all YANG-SID Ranges allocated by the registry:
<!-- [rfced] Section 6.3.2: Because this document currently defines
an IANA registry called "YANG SID Mega-Range" (original title) and
this sentence appears to make general mention of a registry that
would not be managed by IANA, we updated this sentence as follows.
Please let us know any concerns. (For example, could there be future
non-IANA-managed registries that would share the same names as the
registries defined by this document?)
Original:
* The capacity to manage and operate a YANG SID Range Registry. A
YANG SID Range Registry MUST provide the following information for
all YANG SID Ranges allocated by the Registry:
Currently:
* The capacity to manage and operate a registry of YANG-SID Ranges.
A registry of YANG-SID Ranges MUST provide the following
information for all YANG-SID Ranges allocated by the registry: -->
</t> </t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>Entry Point of allocated YANG SID Range</t> <t>The entry point of the allocated YANG-SID Range.</t>
</li> </li>
<li> <li>
<t>Size of allocated YANG SID Range</t> <t>The size of the allocated YANG-SID Range.</t>
</li> </li>
<li> <li>
<t>Type: Public or Private <t>Type: Public or Private.
</t> </t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>Public Ranges <bcp14>MUST</bcp14> include at least a re <t>Public ranges <bcp14>MUST</bcp14> include at least a re
ference to the YANG module and ".sid" files for that YANG SID Range (e.g., compa ference to the YANG module and ".sid" files for that YANG-SID Range (e.g., compa
re <xref target="publink"/> for the IETF YANG SID registry).</t> re <xref target="publink"/> for the "IETF YANG-SID Modules" registry).
<!-- [rfced] Section 6.3.2: Please clarify the meaning of "compare
Section 6.4.3 for the IETF YANG SID registry". Does it mean
"compare with Section 6.4.3" or something else? Also, we find
"Section 6.4.3 for the IETF YANG SID registry" confusing, because
Section 6.4 defines and discusses the "IETF YANG SID Range" registry
(original title).
Original:
o Public Ranges MUST include at least a reference to the YANG
module and ".sid" files for that YANG SID Range (e.g.,
compare Section 6.4.3 for the IETF YANG SID registry).
Possibly:
o Public ranges MUST include at least a reference to the YANG
module and ".sid" files for that YANG-SID Range (e.g.,
see Section 6.4.3 for a comparable scenario as related to the
"IETF YANG-SID Ranges" registry). -->
</t>
</li> </li>
<li> <li>
<t>Private Ranges <bcp14>MUST</bcp14> be marked as "Privat e"</t> <t>Private ranges <bcp14>MUST</bcp14> be marked as "Privat e".</t>
</li> </li>
</ul> </ul>
</li> </li>
</ul> </ul>
</li> </li>
<li> <li>
<t>A Policy of allocation, which clearly identifies if the YANG SI D Range allocations would be Private, Public or Both.</t> <t>A policy of allocation, which clearly identifies whether the YA NG-SID Range allocations would be Private, Public, or both.</t>
</li> </li>
<li> <li>
<t>Technical capacity to provide or refer to ".sid" files in a way that <t>Technical capacity to provide or refer to ".sid" files in a way that
meets the security objective of data integrity for these files (see meets the security objective of data integrity for these files (see
also <xref target="security-considerations"/>).</t> also <xref target="security-considerations"/>).</t>
</li> </li>
<li> <li>
<t>Technical capacity to ensure the sustained operation of the reg istry for a period of at least 5 years. If Private Registrations are allowed, th e period must be of at least 10 years.</t> <t>Technical capacity to ensure the sustained operation of the reg istry for a period of at least 5 years. If registrations in the Private category are allowed, the period must be at least 10 years.</t>
</li> </li>
</ul> </ul>
<t>If a size of the allocation beyond 1 000 000 is desired, the <t>If a size of the allocation beyond 1,000,000 is desired, the
organization must demonstrate the sustainability of the technical organization must demonstrate the sustainability of the technical
approach for utilizing this size of allocation and how it does not approach for utilizing this size of allocation and how it does not
negatively impact the overall usability of the SID allocation negatively impact the overall usability of the SID allocation
mechanisms; such allocations are preferably placed in the space above mechanisms; such allocations are preferably placed in the space above
4 295 000 000 (64-bit space).</t> 4,295,000,000 (64-bit space).</t>
<section anchor="first-allocation"> <section anchor="first-allocation">
<name>First allocation</name> <name>First Allocation</name>
<t>For a first allocation to be provided, the requesting organizatio n must demonstrate a functional registry infrastructure.</t> <t>For a first allocation to be provided, the requesting organizatio n must demonstrate a functional registry infrastructure.</t>
</section> </section>
<section anchor="consecutive-allocations"> <section anchor="consecutive-allocations">
<name>Consecutive allocations</name> <name>Consecutive Allocations</name>
<t>On subsequent allocation request(s), the organization must demons <t>On one or more subsequent allocation requests, the organization m
trate the ust demonstrate the
exhaustion of the prior range. These conditions need to be asserted by the exhaustion of the prior range. These conditions need to be asserted by the
assigned expert(s).</t> assigned expert(s).</t>
<t>If that extra-allocation is done within 3 years from the last all <t>If such a request for an additional allocation is made within 3 y
ocation, the ears of the last allocation, the
experts need to discuss this request on the CORE working group mailing list and experts need to discuss this request on the CORE Working Group mailing list and
consensus needs to be obtained before allocating a new Mega-Range.</t> consensus needs to be obtained before allocating a new Mega-Range.
<!-- [rfced] Section 6.3.2.2: We could not find the term
"extra-allocation" in any published RFC. We updated this sentence as
noted below. If this is incorrect, please clarify the text.
Original:
If that extra-allocation is done within 3 years from the last
allocation, the experts need to discuss this request on the CORE
working group mailing list and consensus needs to be obtained before
allocating a new Mega-Range.
Currently:
If such a request for an additional allocation is made within 3 years
of the last allocation, the experts need to discuss this request on
the CORE Working Group mailing list and consensus needs to be
obtained before allocating a new Mega-Range. -->
</t>
</section> </section>
</section> </section>
<section anchor="initial-contents-of-the-registry"> <section anchor="initial-contents-of-the-registry">
<name>Initial contents of the Registry</name> <name>Initial Contents of the Registry</name>
<t>The initial entry in this registry is allocated to IANA:</t>
<t>This registry contains the following initial entry:</t>
<table align="left"> <table align="left">
<name>YANG-SID Mega-Ranges Registry: Initial Assignment</name>
<thead> <thead>
<tr> <tr>
<th align="left">Entry Point</th> <th align="left">Entry Point</th>
<th align="left">Size</th> <th align="left">Size</th>
<th align="left">Allocation</th> <th align="left">Allocation</th>
<th align="left">Organization name</th> <th align="left">Organization Name</th>
<th align="left">URL</th> <th align="left">URL</th>
</tr> </tr>
</thead> </thead>
<tbody> <tbody>
<tr> <tr>
<td align="left">0</td> <td align="left">0</td>
<td align="left">1000000</td> <td align="left">1,000,000</td>
<td align="left">Public</td> <td align="left">Public</td>
<td align="left">IANA</td> <td align="left">IANA</td>
<td align="left">https://iana.org</td> <td align="left"><eref brackets="angle" target="https://www.iana .org/"/></td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
</section> </section>
</section> </section>
<section anchor="ietf-iana-sid-range-allocation"> <section anchor="ietf-iana-sid-range-allocation">
<name>Create a new IANA Registry: IETF YANG SID Range Registry (managed <name>New IANA Registry: IETF YANG-SID Ranges</name>
by IANA)</name>
<!-- [rfced] Section 6.4: Sections 6.3 and 6.5 have brief
introductory paragraphs listing the name of the new registry.
Would you like this section to do the same?
Original:
6.4. Create a new IANA Registry: IETF YANG SID Range Registry (managed
by IANA)
6.4.1. Structure
Possibly:
6.4. New IANA Registry: IETF YANG-SID Ranges
The name of this registry is "IETF YANG-SID Ranges". This
registry is used to record information related to a new SID
range (e.g., entry point and size).
6.4.1. Structure -->
<section anchor="ietf-iana-sid-range-structure"> <section anchor="ietf-iana-sid-range-structure">
<name>Structure</name> <name>Structure</name>
<t>Each entry in this registry must include:</t> <t>Each entry in this registry must include:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The SID range entry point.</t> <t>The SID range entry point.</t>
</li> </li>
<li> <li>
<t>The SID range size.</t> <t>The SID range size.</t>
</li> </li>
<li> <li>
<t>The YANG module name.</t> <t>The YANG module name.</t>
</li> </li>
<li> <li>
<t>Document reference.</t> <t>A document reference (the document making the registration).</t >
</li> </li>
</ul> </ul>
</section> </section>
<section anchor="ietf-iana-sid-range-allocation-policy"> <section anchor="ietf-iana-sid-range-allocation-policy">
<name>Allocation policy</name> <name>Allocation Policy</name>
<t>The first million SIDs assigned to IANA is subdivided as follows:</ <t>The first million SIDs assigned to IANA is subdivided as follows:
t>
<!-- [rfced] Section 6.4.2: This sentence has a subject-verb
disagreement as written. If neither suggestion below is correct,
please resolve the text.
Original:
The first million SIDs assigned to IANA is subdivided as follows:
Suggestion #1 (SIDs are):
The first million SIDs assigned to IANA are subdivided as follows:
Suggestion #2 (group is):
The first group of one million SIDs assigned to IANA is subdivided
as follows: -->
</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The range of 0 to 999 (size 1000) is subject to "IESG Approval" as defined in <xref target="RFC8126"/>; of these, SID value 0 has been reserved for implementations to internally signify the absence of a SID number and does not occur in interchange.</t> <t>The range of 0 to 999 (size 1,000) is subject to "IESG Approval " as defined in <xref target="RFC8126"/>; of these, SID value 0 has been reserve d for implementations to internally signify the absence of a SID number and does not occur in interchange.</t>
</li> </li>
<li> <li>
<t>The ranges of 1000 to 59,999 (size 59,000) and 100,000 to 299,9 99 (size 200,000) are designated for YANG modules defined in RFCs. <t>The ranges of 1,000 to 59,999 (size 59,000) and 100,000 to 299, 999 (size 200,000) are designated for YANG modules defined in RFCs.
</t> </t>
<!-- [rfced] For the "IETF YANG SID Range" registry (original title),
IANA has listed the following registration procedures:
0 1000 IESG Approval
1000 59000 RFC Required
60000 40000 Reserved for Experimental/Private Use
100000 200000 RFC Required
300000 700000 Reserved
Section 6.4.2 indicates that the entry point 60000 is reserved for Experimental
Use.
Original:
* The range of 60,000 to 99,999 (size 40,000) is reserved for
experimental YANG modules. This range MUST NOT be used in
operational deployments since these SIDs are not globally unique
which limit their interoperability. The IANA policy for this
range is "Experimental use" [RFC8126].
Should Private Use also be listed to align with what appears in the IANA registr
y and table 3?
-->
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The IANA policy for additions to this registry is either: <t>The IANA policy for additions to this registry is:
</t> </t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>"Expert Review" <xref target="RFC8126"/> in case the ". sid" file comes from a YANG module from an existing RFC, or</t> <t>"Expert Review" <xref target="RFC8126"/> if the ".sid" file comes from a YANG module from an existing RFC.</t>
</li> </li>
<li> <li>
<t>"RFC Required" <xref target="RFC8126"/> otherwise.</t> <t>"RFC Required" <xref target="RFC8126"/> otherwise.</t>
</li> </li>
</ul> </ul>
</li> </li>
<li> <li>
<t>The Expert <bcp14>MUST</bcp14> verify that the YANG module for which this allocation is made has an RFC (existing RFC) OR is on track to be come RFC (early allocation with a request from the WG chairs as defined by <xref target="BCP100"/>).</t> <t>The expert <bcp14>MUST</bcp14> verify that the YANG module for which this allocation is made has an RFC (existing RFC) OR is on track to be come an RFC (Early Allocation with a request from the working group chairs as de fined by <xref target="BCP100"/>).</t>
</li> </li>
</ul> </ul>
</li> </li>
<li> <li>
<t>The range of 60,000 to 99,999 (size 40,000) is reserved for exp erimental YANG modules. This range <bcp14>MUST NOT</bcp14> be used in operationa l deployments since these SIDs are not globally unique which limit their interop erability. The IANA policy for this range is "Experimental use" <xref target="RF C8126"/>.</t> <t>The range of 60,000 to 99,999 (size 40,000) is reserved for exp erimental YANG modules. This range <bcp14>MUST NOT</bcp14> be used in operationa l deployments, since these SIDs are not globally unique and their interoperabili ty is therefore limited. The IANA policy for this range is "Experimental Use" <x ref target="RFC8126"/>.</t>
</li> </li>
<li> <li>
<t>The range of 300,000 to 999,999 (size 900,000) is "Reserved" as <t>The range of 300,000 to 999,999 (size 700,000) is "Reserved" as
defined in <xref target="RFC8126"/>.</t> defined in <xref target="RFC8126"/>.
<!-- [rfced] Section 6.4.2: We changed "(size 900,000)" to
"(size 700,000)" per Table 3. Please let us know any concerns.
Original:
* The range of 300,000 to 999,999 (size 900,000) is "Reserved" as
defined in [RFC8126].
Currently:
* The range of 300,000 to 999,999 (size 700,000) is "Reserved" as
defined in [RFC8126]. -->
</t>
</li> </li>
</ul> </ul>
<table align="left"> <table align="left">
<name>IETF YANG-SID Ranges Registry: Ranges</name>
<thead> <thead>
<tr> <tr>
<th align="left">Entry Point</th> <th align="left">Entry Point</th>
<th align="left">Size</th> <th align="left">Size</th>
<th align="left">IANA policy</th> <th align="left">IANA Policy</th>
</tr> </tr>
</thead> </thead>
<tbody> <tbody>
<tr> <tr>
<td align="left">0</td> <td align="left">0</td>
<td align="left">1,000</td> <td align="left">1,000</td>
<td align="left">IESG Approval</td> <td align="left">IESG Approval</td>
</tr> </tr>
<tr> <tr>
<td align="left">1,000</td> <td align="left">1,000</td>
<td align="left">59,000</td> <td align="left">59,000</td>
<td align="left">RFC Required</td> <td align="left">RFC Required</td>
</tr> </tr>
<tr> <tr>
<td align="left">60,000</td> <td align="left">60,000</td>
<td align="left">40,000</td> <td align="left">40,000</td>
<td align="left">Experimental/Private use</td> <td align="left">Experimental/Private Use</td>
</tr> </tr>
<tr> <tr>
<td align="left">100,000</td> <td align="left">100,000</td>
<td align="left">200,000</td> <td align="left">200,000</td>
<td align="left">RFC Required</td> <td align="left">RFC Required</td>
</tr> </tr>
<tr> <tr>
<td align="left">300,000</td> <td align="left">300,000</td>
<td align="left">700,000</td> <td align="left">700,000</td>
<td align="left">Reserved</td> <td align="left">Reserved</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
<t>The size of the SID range allocated for a YANG module is recommende
d to be a multiple of 50 and to be at least 33% above the current number of YANG <!-- [rfced] Section 6.4.2: The information under the second bullet
items. This headroom allows assignment within the same range of new YANG items item does not seem to match what is shown in Table 3. Please let us
introduced by subsequent revisions. The SID range size <bcp14>SHOULD NOT</bcp14> know if any updates to the table are needed. For example, should the
exceed 1000; a larger size may be requested by the authors if this recommendati "1,000" and "100,000" rows list "Expert Review or RFC Required"
on is considered insufficient. It is important to note that an additional SID ra instead of just "RFC Required"?
nge can be allocated to an existing YANG module if the initial range is exhauste
d; this then just leads to slightly less efficient representation.</t> Original (dashes are broken in order to avoid xml2rfc's
<t>In case a SID range is allocated for an existing RFC through the "E "Double hyphen within comment" error):
xpert * The ranges of 1000 to 59,999 (size 59,000) and 100,000 to 299,999
Review" policy, the Document reference field for the given allocation should (size 200,000) are designated for YANG modules defined in RFCs.
- The IANA policy for additions to this registry is either:
o "Expert Review" [RFC8126] in case the ".sid" file comes from
a YANG module from an existing RFC, or
o "RFC Required" [RFC8126] otherwise.
...
+=============+=========+==========================+
| Entry Point | Size | IANA policy |
+=============+=========+==========================+
| 0 | 1,000 | IESG Approval |
+- - - - - - -+- - - - -+- - - - - - - - - - - - - +
| 1,000 | 59,000 | RFC Required |
+- - - - - - -+- - - - -+- - - - - - - - - - - - - +
| 60,000 | 40,000 | Experimental/Private use |
+- - - - - - -+- - - - -+- - - - - - - - - - - - - +
| 100,000 | 200,000 | RFC Required |
+- - - - - - -+- - - - -+- - - - - - - - - - - - - +
| 300,000 | 700,000 | Reserved |
+- - - - - - -+- - - - -+- - - - - - - - - - - - - + -->
<t>The size of the SID range allocated for a YANG module is recommende
d to be a multiple of 50 and to be at least 33% above the current number of YANG
items. This headroom allows assignments within the same range of new YANG items
introduced by subsequent revisions. The SID range size <bcp14>SHOULD NOT</bcp14
> exceed 1,000; a larger size may be requested by the authors if this recommenda
tion is considered insufficient. It is important to note that an additional SID
range can be allocated to an existing YANG module if the initial range is exhaus
ted; this then just leads to a slightly less efficient representation.</t>
<t>If a SID range is allocated for an existing RFC through the "Expert
Review" policy, the Reference field for the given allocation should
point to the RFC that the YANG module is defined in.</t> point to the RFC that the YANG module is defined in.</t>
<t>In case a SID range is required before publishing the RFC due to <!-- [rfced] Note that we have changed references to sections within BCP 100 to
implementations needing stable SID values, early allocation as defined in refer to the section within the relevant RFC.
<xref target="BCP100"/> can be employed for the "RFC Required" range (<xref sect
ion="2" sectionFormat="of" target="BCP100"/>).</t> Original:
In case a SID range is required before publishing the RFC due to
implementations needing stable SID values, early allocation as
defined in [BCP100] can be employed for the "RFC Required" range
(Section 2 of [BCP100]).
Current
If a SID range is required before publishing the RFC due to
implementations needing stable SID values, Early Allocation as
defined in [BCP100] can be employed for the "RFC Required" range
(Section 2 of RFC 7120 [BCP100]).
Original:
| - RFC7120 (BCP100), Section 3.3
| https://www.rfc-editor.org/rfc/rfc7120.html#section-3.3
Currently (moved to appear just prior to the quote):
Section 3.3 of RFC 7120 [BCP100] also says:
-->
<t>If a SID range is required before publishing the RFC due to
implementations needing stable SID values, Early Allocation as defined in
<xref target="BCP100"/> can be employed for the "RFC Required" range (Section <x
ref target="RFC7120" sectionFormat="bare" section="2"/> of RFC 7120 <xref target
="BCP100"/>).</t>
</section> </section>
<section anchor="publink"> <section anchor="publink">
<name>Publication of the ".sid" file</name> <name>Publication of the ".sid" File</name>
<t>During publication of an RFC, IANA contacts the designated expert t <!-- [rfced] Does "approved draft" refer to the I-D that is approved for publica
eam tion as an RFC, or perhaps a draft of the edited AUTH48 file, or other?
("the team"), who are responsible for delivering a final SID file for
From Section 6.4.3
Original:
For a type-2 (SID-aware)
developer, the team first obtains the existing draft SID file from a
stable reference in the approved draft; for a type-1 (SID-guiding)
developer, the team extracts the SID file from the approved draft.
Original:
Such RFCs cannot be produced by
type-3 (SID-oblivious) developers: the SIDs used in the text need to
be assigned in the existing draft SID file, and the designated expert
team needs to check that the assignments in the final SID file are
consistent with the usage in the RFC text or that the approved draft
test is changed appropriately.
-->
<t>During an RFC's publication process, IANA contacts the designated e
xpert team
("the team"), who are responsible for delivering a final ".sid" file for
each module defined by the RFC. each module defined by the RFC.
For a type-3 developer (SID-oblivious, see <xref target="parties-roles"/>), the For a type-3 developer (SID-oblivious; see <xref target="parties-roles"/>), the
team team
creates a new SID file from each YANG module, see below. creates a new ".sid" file from each YANG module; see below.
For a type-2 (SID-aware) developer, the team first obtains the existing draft SI For a type-2 (SID-aware) developer, the team first obtains the existing draft ".
D sid"
file from a stable reference in the approved draft; for a type-1 (SID-guiding) file from a stable reference in the approved draft; for a type-1 (SID-guiding)
developer, the team extracts the SID file from the approved draft.</t> developer, the team extracts the ".sid" file from the approved draft.</t>
<t>The team uses a tool to generate a final SID file from each YANG <!-- [rfced] Please remind us of the implications for publishing - is it correct
module; the final SID file has all SID assignments set to "stable" and that a) the RPC should coordinate with IANA when AUTH48 is complete, so the tea
the SID file status set to "published". m can generate the final SID file from the most current YANG module, and b) IANA
A published ".sid" file <bcp14>MUST NOT</bcp14> contain SID assignments with an will then provide the RPC with the link to the SID file to be included in the R
unstable status.</t> FC?
<t>For the cases other than type-3 (SID-oblivious), the team feeds the
existing draft SID Based on the text in this document, we expect that a final link will not appear
file as an input ("reference SID file") to the tool so that the changes resultin in this RFC. We believe the example SID file in this document is final and does
g from not need to be rechecked by the team. Please confirm that this is correct.
re-generation are minimal. -->
<t>The team uses a tool to generate a final ".sid" file from each YANG
module; the final ".sid" file has all SID assignments set to "stable" and
the ".sid" file status set to "published".
A published ".sid" file <bcp14>MUST NOT</bcp14> contain SID assignments with a
status of "unstable".
<!-- [rfced] Section 6.4.3: As it appears that 'an unstable status'
means 'a status of "unstable"', we updated this sentence accordingly.
If this is incorrect, please clarify "an unstable status" (e.g., does
it refer to more than one type of status?).
Original:
A published ".sid" file
MUST NOT contain SID assignments with an unstable status.
Currently:
A published ".sid" file
MUST NOT contain SID assignments with a status of "unstable". -->
</t>
<t>For the cases other than type-3 (SID-oblivious), the team feeds the
existing draft ".sid"
file as an input ("reference ".sid" file") to the tool so that the changes resul
ting from
regeneration are minimal.
For YANG modules that are revisions of previously published modules, For YANG modules that are revisions of previously published modules,
any existing published SID file needs to serve as reference SID file any existing published ".sid" file needs to serve as a reference ".sid" file
for the tool, either during generation of the revised draft (type-1, for the tool, during generation of either the revised draft ".sid" file (type-1,
type-2) or during generation of the final SID file (type-3).</t> type-2) or the final ".sid" file (type-3).</t>
<t>In any case, the team checks the generated file, including for <t>In any case, the team checks the generated file, including checking
validity as a SID file, for consistency with the SID range for
allocations, for full coverage of the YANG items in YANG module, and validity as a ".sid" file, for consistency with the SID range
for the best achievable consistency with the existing draft SID file.</t> allocations, for full coverage of the YANG items in the YANG module, and
<t>The designated experts then give the SID file to IANA to publish in for the best achievable consistency with the existing draft ".sid" file.</t>
to <t>The designated experts then give the ".sid" file to IANA to publish
the YANG SID Registry (<xref target="ietf-sid-registry"/>) along with the YANG in
the "IETF YANG-SID Modules" registry (<xref target="ietf-sid-registry"/>) along
with the YANG
module.</t> module.</t>
<!-- [rfced] If the intention is to include a note in the body of the text to al
ert the RFC Editor that coordination/action is required, perhaps this could be u
pdated as follows:
Original:
RFCs that need
SIDs assigned to their new modules for use in the text of the
document, e.g., for examples, need to alert the RFC editor in the
draft text that this is the case.
Perhaps:
Drafts that need
SIDs assigned to their new modules for use in the text of the
RFC, e.g., for examples, need to include text in the draft to alert the RFC E
ditor that this is the case.
-->
<t>The ".sid" file <bcp14>MUST NOT</bcp14> be published as part of the RFC: the IANA <t>The ".sid" file <bcp14>MUST NOT</bcp14> be published as part of the RFC: the IANA
Registry is authoritative and a link to it is to be inserted in the RFC. registry is authoritative, and a link to it is to be inserted in the RFC.
(Note that the present RFC is an exception to this rule as the SID (Note that the present RFC is an exception to this rule, as the ".sid"
file also serves as an example for exposition.) file also serves as an example for exposition.)
RFCs that need SIDs assigned to their new modules for use in the text RFCs that need SIDs assigned to their new modules for use in the text
of the document, e.g., for examples, need to alert the RFC editor in of the document, e.g., for examples, need to alert the RFC Editor in
the draft text that this is the case. the draft text that this is the case.
Such RFCs cannot be produced by type-3 (SID-oblivious) developers: Such RFCs cannot be produced by type-3 (SID-oblivious) developers:
the SIDs used in the text need to be assigned in the existing draft the SIDs used in the text need to be assigned in the existing draft
SID file, and the designated expert team needs to check that the ".sid" file, and the designated expert team needs to check that the
assignments in the final SID file are consistent with the usage in the assignments in the final ".sid" file are consistent with the usage in the
RFC text or that the approved draft test is changed appropriately.</t> RFC text or that the approved draft text is changed appropriately.</t>
</section> </section>
<section anchor="ietf-iana-sid-range-initial-contents"> <section anchor="ietf-iana-sid-range-initial-contents">
<name>Initial contents of the registry</name> <name>Initial Contents of the Registry</name>
<t>Initial entries in this registry are as follows:</t> <t>Initial entries in this registry are as follows:</t>
<table align="left"> <table align="left">
<name>IETF YANG-SID Ranges Registry: Initial Range Assignments</name>
<thead> <thead>
<tr> <tr>
<th align="right">Entry Point</th> <th align="right">Entry Point</th>
<th align="right">Size</th> <th align="right">Size</th>
<th align="left">Module name</th> <th align="left">Module Name</th>
<th align="left">Document reference</th> <th align="left">Reference</th>
</tr> </tr>
</thead> </thead>
<tbody> <tbody>
<tr> <tr>
<td align="right">0</td> <td align="right">0</td>
<td align="right">1</td> <td align="right">1</td>
<td align="left">(Reserved: not a valid SID)</td> <td align="left">(Reserved: not a valid SID)</td>
<td align="left">RFCXXXX</td> <td align="left">RFC 9595</td>
</tr> </tr>
<!-- [rfced] Should this RFC be listed as a reference for the ietf-coreconf regi
stration, especially as the entry point is from the RFC Required range and draft
-ietf-core-comi has not yet been approved for publication (WG state is WG Docume
nt and the IESG state is I-D Exists)?
Table 4:
| 1000 | 100| ietf- | [I-D.ietf-core-comi] |
| | | coreconf | |
Note that "ietf-voucher" does not appear in the "IETF YANG SID Range"
registry (original title). Please verify that the following should
be registered. If needed, we will request an update from IANA.
Original:
| 2400 | 50| ietf-voucher | [RFC8366] |
Also, we do not see "ietf-constrained-voucher" or "ietf-constrained-voucher-requ
est" in
draft-ietf-anima-constrained-voucher. However, we see "ietf-voucher" and
"ietf-voucher-request" in draft-ietf-anima-constrained-voucher, and we see "ietf
-voucher"
defined in RFC 8366. Please review.
In addition, should this RFC be listed as a reference for ietf-constrained-vouch
er and ietf-constrained-voucher-request, since the referenced document is draft-
ietf-anima-constrained-voucher, and we think the values are in the RFC Required
range?
+- - - -+- - +- - - - - - - +- - - - - - - - - - - - - - - - - - - +
| 2450 | 50| ietf- | [I-D.ietf-anima-constrained-voucher] |
| | | constrained- | |
| | | voucher | |
+- - - -+- - +- - - - - - - +- - - - - - - - - - - - - - - - - - - +
| 2500 | 50| ietf- | [I-D.ietf-anima-constrained-voucher] |
| | | constrained- | |
| | | voucher- | |
| | | request | |
-->
<tr> <tr>
<td align="right">1000</td> <td align="right">1,000</td>
<td align="right">100</td> <td align="right">100</td>
<td align="left">ietf-coreconf</td> <td align="left">ietf-coreconf</td>
<td align="left"> <td align="left">
<xref target="I-D.ietf-core-comi"/></td> <xref target="CORE-COMI"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1100</td> <td align="right">1,100</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">ietf-yang-types</td> <td align="left">ietf-yang-types</td>
<td align="left"> <td align="left">
<xref target="RFC6991"/></td> <xref target="RFC6991"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1150</td> <td align="right">1,150</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">ietf-inet-types</td> <td align="left">ietf-inet-types</td>
<td align="left"> <td align="left">
<xref target="RFC6991"/></td> <xref target="RFC6991"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1200</td> <td align="right">1,200</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">iana-crypt-hash</td> <td align="left">iana-crypt-hash</td>
<td align="left"> <td align="left">
<xref target="RFC7317"/></td> <xref target="RFC7317"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1250</td> <td align="right">1,250</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">ietf-netconf-acm</td> <td align="left">ietf-netconf-acm</td>
<td align="left"> <td align="left">
<xref target="RFC8341"/></td> <xref target="RFC8341"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1300</td> <td align="right">1,300</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">ietf-sid-file</td> <td align="left">ietf-sid-file</td>
<td align="left">RFCXXXX</td> <td align="left">RFC 9595</td>
</tr> </tr>
<tr> <tr>
<td align="right">1500</td> <td align="right">1,500</td>
<td align="right">100</td> <td align="right">100</td>
<td align="left">ietf-interfaces</td> <td align="left">ietf-interfaces</td>
<td align="left"> <td align="left">
<xref target="RFC8343"/></td> <xref target="RFC8343"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1600</td> <td align="right">1,600</td>
<td align="right">100</td> <td align="right">100</td>
<td align="left">ietf-ip</td> <td align="left">ietf-ip</td>
<td align="left"> <td align="left">
<xref target="RFC8344"/></td> <xref target="RFC8344"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1700</td> <td align="right">1,700</td>
<td align="right">100</td> <td align="right">100</td>
<td align="left">ietf-system</td> <td align="left">ietf-system</td>
<td align="left"> <td align="left">
<xref target="RFC7317"/></td> <xref target="RFC7317"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">1800</td> <td align="right">1,800</td>
<td align="right">400</td> <td align="right">400</td>
<td align="left">iana-if-type</td> <td align="left">iana-if-type</td>
<td align="left"> <td align="left">
<xref target="RFC7224"/></td> <xref target="RFC7224"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">2400</td> <td align="right">2,400</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">ietf-voucher</td> <td align="left">ietf-voucher</td>
<td align="left"> <td align="left">
<xref target="RFC8366"/></td> <xref target="RFC8366"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">2450</td> <td align="right">2,450</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">ietf-constrained-voucher</td> <td align="left">ietf-constrained-voucher</td>
<td align="left"> <td align="left">
<xref target="I-D.ietf-anima-constrained-voucher"/></td> <xref target="CONSTRAINED-VOUCHER"/></td>
</tr> </tr>
<tr> <tr>
<td align="right">2500</td> <td align="right">2,500</td>
<td align="right">50</td> <td align="right">50</td>
<td align="left">ietf-constrained-voucher-request</td> <td align="left">ietf-constrained-voucher-request</td>
<td align="left"> <td align="left">
<xref target="I-D.ietf-anima-constrained-voucher"/></td> <xref target="CONSTRAINED-VOUCHER"/></td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
<t>// RFC Ed.: replace XXXX with RFC number assigned to this draft.</t
> <!-- [rfced] This sentence is a bit misleading, as RFC 8126 does not mention YAN
<t>For allocation, RFC publication of the YANG module is required as p G. Is another reference intended, or is RFC 8126 referred to because of "RFC Pu
er <xref target="RFC8126"/>. The YANG module must be registered in the "YANG mod blication", and should the text instead refer to "RFC Required"?
ule Name" registry according to the rules specified in <xref section="14" sectio
nFormat="of" target="RFC6020"/>.</t> Original:
For allocation, RFC publication of the YANG module is required as per
[RFC8126].
-->
<t>For allocation, RFC publication of the YANG module is required as p
er <xref target="RFC8126"/>. The YANG module must be registered in the "YANG Mod
ule Names" registry according to the rules specified in <xref section="14" secti
onFormat="of" target="RFC6020"/>.</t>
</section> </section>
</section> </section>
<section anchor="ietf-sid-registry"> <section anchor="ietf-sid-registry">
<name>Create new IANA Registry: "IETF YANG SID Registry"</name> <name>New IANA Registry: IETF YANG-SID Modules</name>
<t>The name of this registry is "IETF YANG SID Registry". This registry <t>The name of this registry is "IETF YANG-SID Modules". This registry
is used to is used to
record the allocation of SIDs for individual YANG module items.</t> record the allocation of SIDs for individual YANG module items.</t>
<section anchor="structure-1"> <section anchor="structure-1">
<name>Structure</name> <name>Structure</name>
<t>Each entry in this registry must include:</t> <t>Each entry in this registry must include:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The YANG module name. This module name must be present in the " Name" column of the "YANG Module Names" registry.</t> <t>The YANG module name. This module name must be present in the " Name" column of the "YANG Module Names" registry.</t>
</li> </li>
<li> <li>
<t>A URI for the associated ".yang" file. This file link must be present in the "File" column of the "YANG Module Names" registry.</t> <t>A URI for the associated ".yang" file. This file link must be present in the "File" column of the "YANG Module Names" registry.</t>
</li> </li>
<li> <li>
<t>The URI for the ".sid" file which defines the allocation. The " .sid" file is stored by IANA.</t> <t>The URI for the ".sid" file that defines the allocation. The ". sid" file is stored by IANA.</t>
</li> </li>
<li> <li>
<t>The number of actually allocated SIDs in the ".sid" file.</t> <t>The number of actually allocated SIDs in the ".sid" file.</t>
</li> </li>
</ul> </ul>
</section> </section>
<section anchor="allocation-policy-1"> <section anchor="allocation-policy-1">
<name>Allocation policy</name> <name>Allocation Policy</name>
<t>The allocation policy is Expert review. The Expert <bcp14>MUST</bcp <t>The allocation policy is "Expert Review" <xref target="RFC8126"/>.
14> ensure that the following conditions are met:</t> The expert <bcp14>MUST</bcp14> ensure that the following conditions are met:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The ".sid" file has a valid structure: <t>The ".sid" file has a valid structure:
</t> </t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>The ".sid" file <bcp14>MUST</bcp14> be a valid JSON file fo llowing the structure of the <t>The ".sid" file <bcp14>MUST</bcp14> be a valid JSON file fo llowing the structure of the
module defined in RFCXXXX (RFC Ed: replace XXX with RFC number assigned module defined in this document.</t>
to this draft).</t>
</li> </li>
</ul> </ul>
</li> </li>
<li> <li>
<t>The ".sid" file allocates individual SIDs ONLY in the YANG SID <t>The ".sid" file allocates individual SIDs ONLY in the YANG-SID
Ranges for this Ranges for this
YANG module (as allocated in the IETF YANG SID Range Registry): YANG module (as allocated in the "IETF YANG-SID Ranges" registry):
</t> </t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>All SIDs in this ".sid" file <bcp14>MUST</bcp14> be within the ranges allocated to this <t>All SIDs in this ".sid" file <bcp14>MUST</bcp14> be within the ranges allocated to this
YANG module in the "IETF YANG SID Range Registry".</t> YANG module in the "IETF YANG-SID Ranges" registry.</t>
</li> </li>
</ul> </ul>
</li> </li>
<li> <li>
<t>If another ".sid" file has already allocated SIDs for this YANG module (e.g. <t>If another ".sid" file has already allocated SIDs for this YANG module (e.g.,
for older or newer versions of the YANG module), the YANG items are assigned for older or newer versions of the YANG module), the YANG items are assigned
the same SIDs as in the other ".sid" file.</t> the same SIDs as those in the other ".sid" file.</t>
</li> </li>
<li> <li>
<t>If there is an older version of the ".sid" file, all allocated SIDs from that <t>If there is an older version of the ".sid" file, all allocated SIDs from that
version are still present in the current version of the ".sid" file.</t> version are still present in the current version of the ".sid" file.</t>
</li> </li>
</ul> </ul>
</section> </section>
<!-- [rfced] Please confirm that "YANG SID Range" is correct in the
title for Section 6.5.3:
6.5.3. Recursive Allocation of YANG SID Range at Document Adoption
Section 6.5 is about the IETF YANG SID registry.
-->
<section anchor="recursive-allocation-at-adoption"> <section anchor="recursive-allocation-at-adoption">
<name>Recursive Allocation of YANG SID Range at Document Adoption</nam e> <name>Recursive Allocation of YANG-SID Range at Document Adoption</nam e>
<t>Due to the difficulty in changing SID values during IETF document p rocessing, <t>Due to the difficulty in changing SID values during IETF document p rocessing,
it is expected that most documents will ask for SID range allocations using Earl y it is expected that most documents will ask for SID range allocations using Earl y
Allocations <xref target="BCP100"/>. The details of the Early Allocation to be Allocations <xref target="BCP100"/>. The details of the Early Allocation to be
requested, including the timeline envisioned, should be included requested, including the timeline envisioned, should be included
in any Working Group Adoption call. Prior to Working Group Adoption, an internet in any working group adoption call. Prior to working group adoption, an
draft author can use the experimental SID range (as per Internet-Draft author can use the experimental SID range (as per
<xref target="ietf-iana-sid-range-allocation-policy"/>) for their SIDs allocatio <xref target="ietf-iana-sid-range-allocation-policy"/>) for their SID allocation
ns or s or
other values that do not create ambiguity with other SID uses (for example other values that do not create ambiguity with other SID uses (for example,
they can use a range that comes from a non-IANA managed "YANG SID Mega-Range" they can use a range that comes from a non-IANA-managed registry of YANG-SID Meg
registry).</t> a-Ranges).
<t>After Working Group Adoption, any modification of a ".sid" file is
expected to be <!-- [rfced] Section 6.5.3: Because this document currently defines
discussed on the mailing list of the appropriate Working Groups. Specific an IANA registry called "YANG SID Mega-Range" (original title) and
attention should be paid to implementers' opinion after Working Group Last Call this sentence makes general mention of a registry that would not be
managed by IANA, we updated this sentence as follows. Please let us
know any concerns. (For example, could there be future
non-IANA-managed registries that would share the same names as the
registries defined by this document?)
Original:
Prior to
Working Group Adoption, an internet draft author can use the
experimental SID range (as per Section 6.4.2) for their SIDs
allocations or other values that do not create ambiguity with other
SID uses (for example they can use a range that comes from a non-IANA
managed "YANG SID Mega-Range" registry).
Currently:
Prior to
working group adoption, an Internet-Draft author can use the
experimental SID range (as per Section 6.4.2) for their SID
allocations or other values that do not create ambiguity with other
SID uses (for example, they can use a range that comes from a non-
IANA-managed registry of YANG-SID Mega-Ranges). -->
</t>
<t>After working group adoption, any modification of a ".sid" file is
expected to be
discussed on the mailing lists of the appropriate working groups. Specific
attention should be paid to implementers' opinions after Working Group Last Call
if a SID value is to change its meaning. In all cases, a ".sid" file and the SID s if a SID value is to change its meaning. In all cases, a ".sid" file and the SID s
associated with it are subject to change before the publication of an internet associated with it are subject to change before the publication of an
draft as an RFC.</t> Internet-Draft as an RFC.</t>
<t>During the early use of SIDs, many existing, previously published Y <t>As new SIDs are first used, many existing, previously published YAN
ANG modules G modules
will not have SID allocations. For an allocation to be useful the included will not have SID allocations. For an allocation to be useful, the included
YANG modules may also need to have SID allocations made, in a process YANG modules may also need to have SID allocations made, in a process
that will generally analogous to that in <xref target="publink"/> for the type-3 that will generally be analogous to that in <xref target="publink"/> for the typ
(SID-oblivious) case.</t> e-3 (SID-oblivious) case.</t>
<t>The Expert Reviewer who performs the (Early) Allocation analysis wi <t>The expert reviewer who performs the (Early) Allocation analysis wi
ll need to ll need to
go through the list of included YANG modules and perform SID allocations for go through the list of included YANG modules and perform SID allocations for
those modules as well.</t> those modules as well.</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>If the document is a published RFC, then the allocation of SIDs for its <t>If the document is a published RFC, then the allocation of SIDs for its
referenced YANG modules is permanent. The Expert Reviewer provides the referenced YANG modules is permanent. The expert reviewer provides the
generated ".sid" file to IANA for registration.</t> generated ".sid" file to IANA for registration.</t>
</li> </li>
<li> <li>
<t>If the document is an unprocessed Internet-Draft adopted in a W <!-- [rfced] In the following, is "for this document as well" needed?
G, then an
Original:
* If the document is an unprocessed Internet-Draft adopted in a WG,
then an Early Allocation is performed for this document as well.
-->
<t>If the document is an unprocessed Internet-Draft adopted in a w
orking group, then an
Early Allocation is performed for this document as well. Early Allocations Early Allocation is performed for this document as well. Early Allocations
require approval by an IESG Area Director. An early allocation which require approval by an IESG area director. An Early Allocation that
requires additional allocations will list the other allocations in its requires additional allocations will list the other allocations in its
description, and will be cross-posted to the mailing lists of any description and will be cross-posted to the mailing lists of any
other working groups concerned.</t> other working groups concerned.</t>
</li> </li>
<li> <li>
<t>A YANG module which references a module in a document which has not yet been <t>A YANG module that references a module in a document that has n ot yet been
adopted by any working group will be unable to perform an Early Allocation adopted by any working group will be unable to perform an Early Allocation
for that other document until it is adopted by a working group. As described for that other document until it is adopted by a working group. As described
in <xref target="BCP100"/>, an AD Sponsored document acts as if it had a working in <xref target="BCP100"/>, an AD-sponsored document acts as if it had a working
group. The group. The
approving AD may also exempt a document from this policy by agreeing to AD approving AD may also exempt a document from this policy by agreeing to AD-spons
Sponsor the document.</t> or the document.
<!-- [rfced] Section 6.5.3: We do not see the word "sponsor" in
[BCP100], and it appears that sponsoring and approving are two
distinct activities. Perhaps "Shepherding Area Director" is meant? Please revi
ew.
Original:
As described in [BCP100], an AD
Sponsored document acts as if it had a working group. The
approving AD may also exempt a document from this policy by
agreeing to AD Sponsor the document. -->
</t>
</li> </li>
</ul> </ul>
<t>At the end of the IETF process all the dependencies of a given modu <t>At the end of the IETF process, all the dependencies of a given mod
le for which ule for which
SIDs are assigned, should also have SIDs assigned. Those dependencies' SIDs are assigned should also have SIDs assigned. Those dependencies'
assignments should be permanent (not Early Allocation).</t> assignments should be permanent (not Early Allocation).</t>
<t>A previously SID-allocated YANG module which changes its references to include <t>A previously SID-allocated YANG module that changes its references to include
a YANG module for which there is no SID allocation needs to repeat the Early a YANG module for which there is no SID allocation needs to repeat the Early
Allocation process.</t> Allocation process.</t>
<t><xref target="BCP100"/> defines a time limit for the validity of Ea rly Allocations, <t><xref target="BCP100"/> defines a time limit for the validity of Ea rly Allocations,
after which they expire unless they are renewed. <xref target="BCP100"/> also s after which they expire unless they are renewed. Section <xref target="RFC7120"
ays:</t> sectionFormat="bare" section="3.3"/> of RFC 7120 <xref target="BCP100"/> also s
<blockquote cite="https://www.rfc-editor.org/rfc/rfc7120.html#section- ays:</t>
3.3" quotedFrom="RFC7120 (BCP100), Section 3.3">
<t>Note that if a document is submitted for review to the IESG and a <!-- DNE; fixed and FYI-AQed -->
t <blockquote>
the time of submission some early allocations are valid (not <t>Note that if a document is submitted for review to the IESG, and
expired), these allocations should not be expired while the document at
is under IESG consideration or waiting in the RFC Editor's queue the time of submission some Early Allocations are valid (not
after approval by the IESG.</t> expired), these allocations must not be considered to have expired
while the document is under IESG consideration or is awaiting
publication in the RFC Editor's queue after approval by the IESG.
<!-- [rfced] Section 6.5.3: The provided text did not match the text
we found in RFC 7120 [BCP100]. We updated the text accordingly so
that it would match. Please let us know any concerns.
Original:
[BCP100] defines a time limit for the validity of Early Allocations,
after which they expire unless they are renewed. [BCP100] also says:
| Note that if a document is submitted for review to the IESG and at
| the time of submission some early allocations are valid (not
| expired), these allocations should not be expired while the
| document is under IESG consideration or waiting in the RFC
| Editor's queue after approval by the IESG.
|
| - RFC7120 (BCP100), Section 3.3
| https://www.rfc-editor.org/rfc/rfc7120.html#section-3.3
Currently:
[BCP100] defines a time limit for the validity of Early Allocations,
after which they expire unless they are renewed. Section 3.3 of RFC
7120 [BCP100] also says:
| Note that if a document is submitted for review to the IESG, and
| at the time of submission some Early Allocations are valid (not
| expired), these allocations must not be considered to have expired
| while the document is under IESG consideration or is awaiting
| publication in the RFC Editor's queue after approval by the IESG. -->
</t>
</blockquote> </blockquote>
</section> </section>
<section anchor="initial-contents-of-the-registry-1"> <section anchor="initial-contents-of-the-registry-1">
<name>Initial contents of the registry</name> <name>Initial Contents of the Registry</name>
<t>None.</t> <t>At the time of writing, this registry does not contain any entries.
</t>
</section> </section>
</section> </section>
<section anchor="register-media-type-and-content-format"> <section anchor="register-media-type-and-content-format">
<name>Register Media Type and Content-Format</name> <name>Media Type and Content-Format Registration</name>
<section anchor="media-type-applicationyang-sidjson"> <section anchor="media-type-applicationyang-sidjson">
<name>Media Type application/yang-sid+json</name> <name>Media Type application/yang-sid+json</name>
<t>This document adds the following Media-Type to the "Media Types" re gistry.</t> <t>This document adds the following media type to the "Media Types" re gistry.</t>
<table align="left"> <table align="left">
<name>SID File Media-Type Registration</name> <name>&quot;.sid&quot; File Media Type Registration</name>
<thead> <thead>
<tr> <tr>
<th align="left">Name</th> <th align="left">Name</th>
<th align="left">Template</th> <th align="left">Template</th>
<th align="left">Reference</th> <th align="left">Reference</th>
</tr> </tr>
</thead> </thead>
<tbody> <tbody>
<tr> <tr>
<td align="left">yang-sid+json</td> <td align="left">yang-sid+json</td>
<td align="left">application/yang-sid+json</td> <td align="left">application/yang-sid+json</td>
<td align="left">RFC XXXX</td> <td align="left">RFC 9595</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
<t>// RFC Ed.: please replace RFC XXXX with this RFC number and remove <dl spacing="normal">
this note.</t>
<dl spacing="compact">
<dt>Type name:</dt> <dt>Type name:</dt>
<dd> <dd>
<t>application</t> <t>application</t>
</dd> </dd>
<dt>Subtype name:</dt> <dt>Subtype name:</dt>
<dd> <dd>
<t>yang-sid+json</t> <t>yang-sid+json</t>
</dd> </dd>
<dt>Required parameters:</dt> <dt>Required parameters:</dt>
<dd> <dd>
skipping to change at line 1514 skipping to change at line 2193
<dt>Optional parameters:</dt> <dt>Optional parameters:</dt>
<dd> <dd>
<t>N/A</t> <t>N/A</t>
</dd> </dd>
<dt>Encoding considerations:</dt> <dt>Encoding considerations:</dt>
<dd> <dd>
<t>binary (UTF-8)</t> <t>binary (UTF-8)</t>
</dd> </dd>
<dt>Security considerations:</dt> <dt>Security considerations:</dt>
<dd> <dd>
<t>see <xref target="security-considerations"/> of RFC XXXX</t> <t>See <xref target="security-considerations"/> of RFC 9595.</t>
</dd> </dd>
<dt>Published specification:</dt> <dt>Published specification:</dt>
<dd> <dd>
<t>RFC XXXX</t> <t>RFC 9595</t>
</dd> </dd>
<dt>Applications that use this media type:</dt> <dt>Applications that use this media type:</dt>
<dd> <dd>
<t>applications that need to obtain YANG SIDs to interchange <t>Applications that need to obtain YANG-SIDs to interchange
YANG-modeled data in a concise and efficient representation</t> YANG-modeled data in a concise and efficient representation.</t>
</dd> </dd>
<dt>Fragment identifier considerations:</dt> <dt>Fragment identifier considerations:</dt>
<dd> <dd>
<t>The syntax and semantics of <t>The syntax and semantics of
fragment identifiers specified for "application/yang-sid+json" is fragment identifiers specified for "application/yang-sid+json" is
as specified for "application/json". (At publication of this as specified for "application/json". (At publication of this
document, there is no fragment identification syntax defined for document, there is no fragment identification syntax defined for
"application/json".)</t> "application/json".)</t>
</dd> </dd>
<dt>Additional information:</dt> <dt>Additional information:</dt>
<dd> <dd><t><br/></t>
<dl> <dl spacing="compact">
<dt><br/></dt>
<dd>
<t/>
</dd>
<dt>Magic number(s):</dt> <dt>Magic number(s):</dt>
<dd> <dd>
<t>N/A</t> <t>N/A</t>
</dd> </dd>
<dt>File extension(s):</dt> <dt>File extension(s):</dt>
<dd> <dd>
<t>.sid</t> <t>.sid</t>
</dd> </dd>
<dt>Macintosh file type code(s):</dt> <dt>Macintosh file type code(s):</dt>
<dd> <dd>
<t>N/A</t> <t>N/A</t>
</dd> </dd>
</dl> </dl>
</dd> </dd>
<dt>Person &amp; email address to contact for further information:</ dt> <dt>Person &amp; email address to contact for further information:</ dt>
<dd> <dd>
<t>CORE WG mailing list (core@ietf.org), <t>CORE WG mailing list (core@ietf.org)
or IETF Applications and Real-Time Area (art@ietf.org)</t> or IETF Applications and Real-Time Area (art@ietf.org)</t>
</dd> </dd>
<dt>Intended usage:</dt> <dt>Intended usage:</dt>
<dd> <dd>
<t>COMMON</t> <t>COMMON</t>
</dd> </dd>
<dt>Restrictions on usage:</dt> <dt>Restrictions on usage:</dt>
<dd> <dd>
<t>none</t> <t>none</t>
</dd> </dd>
<dt>Author/Change controller:</dt> <dt>Author/Change controller:</dt>
<dd> <dd>
<t>IETF</t> <t>IETF</t>
</dd> </dd>
</dl> </dl>
</section> </section>
<section anchor="coap-content-format"> <section anchor="coap-content-format">
<name>CoAP Content-Format</name> <name>CoAP Content-Format</name>
<t>This document adds the following Content-Format to the "CoAP Conten <t>This document adds the following Content-Format to the "CoAP Conten
t-Formats", t-Formats" registry
within the "Constrained RESTful Environments (CoRE) Parameters" within the "Constrained RESTful Environments (CoRE) Parameters" group of
registry, where TBD1 comes from the "IETF Review" 256-999 range.</t> registries, where 260 has been assigned from the "IETF Review" (256-9,999) range
.
<!-- [rfced] Section 6.6.2: We changed "999" to "9999"* per
<https://www.iana.org/assignments/core-parameters/>. Please let us
know any concerns.
* Updated to "9,999" per feedback from Michael Richardson re. using
commas in numbers with four or more digits.
Original:
This document adds the following Content-Format to the "CoAP Content-
Formats", within the "Constrained RESTful Environments (CoRE)
Parameters" registry, where TBD1 comes from the "IETF Review" 256-999
range.
Currently:
This document adds the following Content-Format to the "CoAP Content-
Formats" registry within the "Constrained RESTful Environments (CoRE)
Parameters" group of registries, where 260 has been assigned from the "IETF
Review" (256-9,999) range.
-->
</t>
<table align="left"> <table align="left">
<name>SID File Content-format Registration</name> <name>&quot;.sid&quot; File Content-Format Registration</name>
<thead> <thead>
<tr> <tr>
<th align="left">Content Type</th> <th align="left">Content Type</th>
<th align="left">Content Coding</th> <th align="left">Content Coding</th>
<th align="left">ID</th> <th align="left">ID</th>
<th align="left">Reference</th> <th align="left">Reference</th>
</tr> </tr>
</thead> </thead>
<tbody> <tbody>
<tr> <tr>
<td align="left">application/yang-sid+json</td> <td align="left">application/yang-sid+json</td>
<td align="left">-</td> <td align="left">-</td>
<td align="left">TBD1</td> <td align="left">260</td>
<td align="left">RFC XXXX</td> <td align="left">RFC 9595</td>
</tr> </tr>
</tbody> </tbody>
</table> </table>
<t>// RFC Ed.: please replace TBD1 with the assigned ID, remove the
requested range, and remove this note.<br/>
// RFC Ed.: please replace RFC XXXX with this RFC number and remove this note.</
t>
</section> </section>
</section> </section>
</section> </section>
</middle> </middle>
<back> <back>
<references> <references>
<name>References</name> <name>References</name>
<references anchor="sec-normative-references"> <references anchor="sec-normative-references">
<name>Normative References</name> <name>Normative References</name>
<reference anchor="RFC3688">
<front> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.36
<title>The IETF XML Registry</title> 88.xml"/>
<author fullname="M. Mealling" initials="M." surname="Mealling"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.69
<date month="January" year="2004"/> 91.xml"/>
<abstract> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.62
<t>This document describes an IANA maintained registry for IETF st 41.xml"/>
andards which use Extensible Markup Language (XML) related items such as Namespa <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
ces, Document Type Declarations (DTDs), Schemas, and Resource Description Framew 41.xml"/>
ork (RDF) Schemas.</t>
</abstract> <referencegroup anchor="BCP100" target="https://www.rfc-editor.org/info/b
</front> cp100">
<seriesInfo name="BCP" value="81"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.
<seriesInfo name="RFC" value="3688"/> 7120.xml"/>
<seriesInfo name="DOI" value="10.17487/RFC3688"/> </referencegroup>
</reference>
<reference anchor="RFC6991"> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.79
<front> 50.xml"/>
<title>Common YANG Data Types</title> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.79
<author fullname="J. Schoenwaelder" initials="J." role="editor" surn 51.xml"/>
ame="Schoenwaelder"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.80
<date month="July" year="2013"/> 40.xml"/>
<abstract> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.82
<t>This document introduces a collection of common data types to b 59.xml"/>
e used with the YANG data modeling language. This document obsoletes RFC 6021.</ <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.87
t> 91.xml"/>
</abstract> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.21
</front> 19.xml"/>
<seriesInfo name="RFC" value="6991"/> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.81
<seriesInfo name="DOI" value="10.17487/RFC6991"/> 74.xml"/>
</reference>
<reference anchor="BCP100">
<front>
<title>Early IANA Allocation of Standards Track Code Points</title>
<author fullname="M. Cotton" initials="M." surname="Cotton"/>
<date month="January" year="2014"/>
<abstract>
<t>This memo describes the process for early allocation of code po
ints by IANA from registries for which "Specification Required", "RFC Required",
"IETF Review", or "Standards Action" policies apply. This process can be used t
o alleviate the problem where code point allocation is needed to facilitate desi
red or required implementation and deployment experience prior to publication of
an RFC, which would normally trigger code point allocation. The procedures in t
his document are intended to apply only to IETF Stream documents.</t>
</abstract>
</front>
<seriesInfo name="BCP" value="100"/>
<seriesInfo name="RFC" value="7120"/>
<seriesInfo name="DOI" value="10.17487/RFC7120"/>
</reference>
<reference anchor="RFC7950">
<front>
<title>The YANG 1.1 Data Modeling Language</title>
<author fullname="M. Bjorklund" initials="M." role="editor" surname=
"Bjorklund"/>
<date month="August" year="2016"/>
<abstract>
<t>YANG is a data modeling language used to model configuration da
ta, state data, Remote Procedure Calls, and notifications for network management
protocols. This document describes the syntax and semantics of version 1.1 of t
he YANG language. YANG version 1.1 is a maintenance release of the YANG language
, addressing ambiguities and defects in the original specification. There are a
small number of backward incompatibilities from YANG version 1. This document al
so specifies the YANG mappings to the Network Configuration Protocol (NETCONF).<
/t>
</abstract>
</front>
<seriesInfo name="RFC" value="7950"/>
<seriesInfo name="DOI" value="10.17487/RFC7950"/>
</reference>
<reference anchor="RFC7951">
<front>
<title>JSON Encoding of Data Modeled with YANG</title>
<author fullname="L. Lhotka" initials="L." surname="Lhotka"/>
<date month="August" year="2016"/>
<abstract>
<t>This document defines encoding rules for representing configura
tion data, state data, parameters of Remote Procedure Call (RPC) operations or a
ctions, and notifications defined using YANG as JavaScript Object Notation (JSON
) text.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="7951"/>
<seriesInfo name="DOI" value="10.17487/RFC7951"/>
</reference>
<reference anchor="RFC8040">
<front>
<title>RESTCONF Protocol</title>
<author fullname="A. Bierman" initials="A." surname="Bierman"/>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<author fullname="K. Watsen" initials="K." surname="Watsen"/>
<date month="January" year="2017"/>
<abstract>
<t>This document describes an HTTP-based protocol that provides a
programmatic interface for accessing data defined in YANG, using the datastore c
oncepts defined in the Network Configuration Protocol (NETCONF).</t>
</abstract>
</front>
<seriesInfo name="RFC" value="8040"/>
<seriesInfo name="DOI" value="10.17487/RFC8040"/>
</reference>
<reference anchor="RFC8259">
<front>
<title>The JavaScript Object Notation (JSON) Data Interchange Format
</title>
<author fullname="T. Bray" initials="T." role="editor" surname="Bray
"/>
<date month="December" year="2017"/>
<abstract>
<t>JavaScript Object Notation (JSON) is a lightweight, text-based,
language-independent data interchange format. It was derived from the ECMAScrip
t Programming Language Standard. JSON defines a small set of formatting rules fo
r the portable representation of structured data.</t>
<t>This document removes inconsistencies with other specifications
of JSON, repairs specification errors, and offers experience-based interoperabi
lity guidance.</t>
</abstract>
</front>
<seriesInfo name="STD" value="90"/>
<seriesInfo name="RFC" value="8259"/>
<seriesInfo name="DOI" value="10.17487/RFC8259"/>
</reference>
<reference anchor="RFC8791">
<front>
<title>YANG Data Structure Extensions</title>
<author fullname="A. Bierman" initials="A." surname="Bierman"/>
<author fullname="M. Björklund" initials="M." surname="Björklund"/>
<author fullname="K. Watsen" initials="K." surname="Watsen"/>
<date month="June" year="2020"/>
<abstract>
<t>This document describes YANG mechanisms for defining abstract d
ata structures with YANG.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="8791"/>
<seriesInfo name="DOI" value="10.17487/RFC8791"/>
</reference>
<reference anchor="RFC2119">
<front>
<title>Key words for use in RFCs to Indicate Requirement Levels</tit
le>
<author fullname="S. Bradner" initials="S." surname="Bradner"/>
<date month="March" year="1997"/>
<abstract>
<t>In many standards track documents several words are used to sig
nify the requirements in the specification. These words are often capitalized. T
his document defines these words as they should be interpreted in IETF documents
. This document specifies an Internet Best Current Practices for the Internet Co
mmunity, and requests discussion and suggestions for improvements.</t>
</abstract>
</front>
<seriesInfo name="BCP" value="14"/>
<seriesInfo name="RFC" value="2119"/>
<seriesInfo name="DOI" value="10.17487/RFC2119"/>
</reference>
<reference anchor="RFC8174">
<front>
<title>Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words</ti
tle>
<author fullname="B. Leiba" initials="B." surname="Leiba"/>
<date month="May" year="2017"/>
<abstract>
<t>RFC 2119 specifies common key words that may be used in protoco
l specifications. This document aims to reduce the ambiguity by clarifying that
only UPPERCASE usage of the key words have the defined special meanings.</t>
</abstract>
</front>
<seriesInfo name="BCP" value="14"/>
<seriesInfo name="RFC" value="8174"/>
<seriesInfo name="DOI" value="10.17487/RFC8174"/>
</reference>
</references> </references>
<references anchor="sec-informative-references"> <references anchor="sec-informative-references">
<name>Informative References</name> <name>Informative References</name>
<reference anchor="RFC6020">
<front>
<title>YANG - A Data Modeling Language for the Network Configuration
Protocol (NETCONF)</title>
<author fullname="M. Bjorklund" initials="M." role="editor" surname=
"Bjorklund"/>
<date month="October" year="2010"/>
<abstract>
<t>YANG is a data modeling language used to model configuration an
d state data manipulated by the Network Configuration Protocol (NETCONF), NETCON
F remote procedure calls, and NETCONF notifications. [STANDARDS-TRACK]</t>
</abstract>
</front>
<seriesInfo name="RFC" value="6020"/>
<seriesInfo name="DOI" value="10.17487/RFC6020"/>
</reference>
<reference anchor="RFC6241">
<front>
<title>Network Configuration Protocol (NETCONF)</title>
<author fullname="R. Enns" initials="R." role="editor" surname="Enns
"/>
<author fullname="M. Bjorklund" initials="M." role="editor" surname=
"Bjorklund"/>
<author fullname="J. Schoenwaelder" initials="J." role="editor" surn
ame="Schoenwaelder"/>
<author fullname="A. Bierman" initials="A." role="editor" surname="B
ierman"/>
<date month="June" year="2011"/>
<abstract>
<t>The Network Configuration Protocol (NETCONF) defined in this do
cument provides mechanisms to install, manipulate, and delete the configuration
of network devices. It uses an Extensible Markup Language (XML)-based data encod
ing for the configuration data as well as the protocol messages. The NETCONF pro
tocol operations are realized as remote procedure calls (RPCs). This document ob
soletes RFC 4741. [STANDARDS-TRACK]</t>
</abstract>
</front>
<seriesInfo name="RFC" value="6241"/>
<seriesInfo name="DOI" value="10.17487/RFC6241"/>
</reference>
<reference anchor="RFC7224">
<front>
<title>IANA Interface Type YANG Module</title>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<date month="May" year="2014"/>
<abstract>
<t>This document defines the initial version of the iana-if-type Y
ANG module.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="7224"/>
<seriesInfo name="DOI" value="10.17487/RFC7224"/>
</reference>
<reference anchor="RFC7228">
<front>
<title>Terminology for Constrained-Node Networks</title>
<author fullname="C. Bormann" initials="C." surname="Bormann"/>
<author fullname="M. Ersue" initials="M." surname="Ersue"/>
<author fullname="A. Keranen" initials="A." surname="Keranen"/>
<date month="May" year="2014"/>
<abstract>
<t>The Internet Protocol Suite is increasingly used on small devic
es with severe constraints on power, memory, and processing resources, creating
constrained-node networks. This document provides a number of basic terms that h
ave been useful in the standardization work for constrained-node networks.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="7228"/>
<seriesInfo name="DOI" value="10.17487/RFC7228"/>
</reference>
<reference anchor="RFC7317">
<front>
<title>A YANG Data Model for System Management</title>
<author fullname="A. Bierman" initials="A." surname="Bierman"/>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<date month="August" year="2014"/>
<abstract>
<t>This document defines a YANG data model for the configuration a
nd identification of some common system properties within a device containing a
Network Configuration Protocol (NETCONF) server. This document also includes dat
a node definitions for system identification, time-of-day management, user manag
ement, DNS resolver configuration, and some protocol operations for system manag
ement.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="7317"/>
<seriesInfo name="DOI" value="10.17487/RFC7317"/>
</reference>
<reference anchor="RFC8126">
<front>
<title>Guidelines for Writing an IANA Considerations Section in RFCs
</title>
<author fullname="M. Cotton" initials="M." surname="Cotton"/>
<author fullname="B. Leiba" initials="B." surname="Leiba"/>
<author fullname="T. Narten" initials="T." surname="Narten"/>
<date month="June" year="2017"/>
<abstract>
<t>Many protocols make use of points of extensibility that use con
stants to identify various protocol parameters. To ensure that the values in the
se fields do not have conflicting uses and to promote interoperability, their al
locations are often coordinated by a central record keeper. For IETF protocols,
that role is filled by the Internet Assigned Numbers Authority (IANA).</t>
<t>To make assignments in a given registry prudently, guidance des
cribing the conditions under which new values should be assigned, as well as whe
n and how modifications to existing values can be made, is needed. This document
defines a framework for the documentation of these guidelines by specification
authors, in order to assure that the provided guidance for the IANA Consideratio
ns is clear and addresses the various issues that are likely in the operation of
a registry.</t>
<t>This is the third edition of this document; it obsoletes RFC 52
26.</t>
</abstract>
</front>
<seriesInfo name="BCP" value="26"/>
<seriesInfo name="RFC" value="8126"/>
<seriesInfo name="DOI" value="10.17487/RFC8126"/>
</reference>
<reference anchor="RFC8341">
<front>
<title>Network Configuration Access Control Model</title>
<author fullname="A. Bierman" initials="A." surname="Bierman"/>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<date month="March" year="2018"/>
<abstract>
<t>The standardization of network configuration interfaces for use
with the Network Configuration Protocol (NETCONF) or the RESTCONF protocol requ
ires a structured and secure operating environment that promotes human usability
and multi-vendor interoperability. There is a need for standard mechanisms to r
estrict NETCONF or RESTCONF protocol access for particular users to a preconfigu
red subset of all available NETCONF or RESTCONF protocol operations and content.
This document defines such an access control model.</t>
<t>This document obsoletes RFC 6536.</t>
</abstract>
</front>
<seriesInfo name="STD" value="91"/>
<seriesInfo name="RFC" value="8341"/>
<seriesInfo name="DOI" value="10.17487/RFC8341"/>
</reference>
<reference anchor="RFC8343">
<front>
<title>A YANG Data Model for Interface Management</title>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<date month="March" year="2018"/>
<abstract>
<t>This document defines a YANG data model for the management of n
etwork interfaces. It is expected that interface-type-specific data models augme
nt the generic interfaces data model defined in this document. The data model in
cludes definitions for configuration and system state (status information and co
unters for the collection of statistics).</t>
<t>The YANG data model in this document conforms to the Network Ma
nagement Datastore Architecture (NMDA) defined in RFC 8342.</t>
<t>This document obsoletes RFC 7223.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="8343"/>
<seriesInfo name="DOI" value="10.17487/RFC8343"/>
</reference>
<reference anchor="RFC8344">
<front>
<title>A YANG Data Model for IP Management</title>
<author fullname="M. Bjorklund" initials="M." surname="Bjorklund"/>
<date month="March" year="2018"/>
<abstract>
<t>This document defines a YANG data model for management of IP im
plementations. The data model includes configuration and system state.</t>
<t>The YANG data model in this document conforms to the Network Ma
nagement Datastore Architecture defined in RFC 8342.</t>
<t>This document obsoletes RFC 7277.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="8344"/>
<seriesInfo name="DOI" value="10.17487/RFC8344"/>
</reference>
<reference anchor="RFC8366">
<front>
<title>A Voucher Artifact for Bootstrapping Protocols</title>
<author fullname="K. Watsen" initials="K." surname="Watsen"/>
<author fullname="M. Richardson" initials="M." surname="Richardson"/
>
<author fullname="M. Pritikin" initials="M." surname="Pritikin"/>
<author fullname="T. Eckert" initials="T." surname="Eckert"/>
<date month="May" year="2018"/>
<abstract>
<t>This document defines a strategy to securely assign a pledge to
an owner using an artifact signed, directly or indirectly, by the pledge's manu
facturer. This artifact is known as a "voucher".</t>
<t>This document defines an artifact format as a YANG-defined JSON
document that has been signed using a Cryptographic Message Syntax (CMS) struct
ure. Other YANG-derived formats are possible. The voucher artifact is normally g
enerated by the pledge's manufacturer (i.e., the Manufacturer Authorized Signing
Authority (MASA)).</t>
<t>This document only defines the voucher artifact, leaving it to
other documents to describe specialized protocols for accessing it.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="8366"/>
<seriesInfo name="DOI" value="10.17487/RFC8366"/>
</reference>
<reference anchor="RFC8407">
<front>
<title>Guidelines for Authors and Reviewers of Documents Containing
YANG Data Models</title>
<author fullname="A. Bierman" initials="A." surname="Bierman"/>
<date month="October" year="2018"/>
<abstract>
<t>This memo provides guidelines for authors and reviewers of spec
ifications containing YANG modules. Recommendations and procedures are defined,
which are intended to increase interoperability and usability of Network Configu
ration Protocol (NETCONF) and RESTCONF protocol implementations that utilize YAN
G modules. This document obsoletes RFC 6087.</t>
</abstract>
</front>
<seriesInfo name="BCP" value="216"/>
<seriesInfo name="RFC" value="8407"/>
<seriesInfo name="DOI" value="10.17487/RFC8407"/>
</reference>
<reference anchor="RFC8792">
<front>
<title>Handling Long Lines in Content of Internet-Drafts and RFCs</t
itle>
<author fullname="K. Watsen" initials="K." surname="Watsen"/>
<author fullname="E. Auerswald" initials="E." surname="Auerswald"/>
<author fullname="A. Farrel" initials="A." surname="Farrel"/>
<author fullname="Q. Wu" initials="Q." surname="Wu"/>
<date month="June" year="2020"/>
<abstract>
<t>This document defines two strategies for handling long lines in
width-bounded text content. One strategy, called the "single backslash" strateg
y, is based on the historical use of a single backslash ('\') character to indic
ate where line-folding has occurred, with the continuation occurring with the fi
rst character that is not a space character (' ') on the next line. The second s
trategy, called the "double backslash" strategy, extends the first strategy by a
dding a second backslash character to identify where the continuation begins and
is thereby able to handle cases not supported by the first strategy. Both strat
egies use a self-describing header enabling automated reconstitution of the orig
inal content.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="8792"/>
<seriesInfo name="DOI" value="10.17487/RFC8792"/>
</reference>
<reference anchor="I-D.ietf-core-comi">
<front>
<title>CoAP Management Interface (CORECONF)</title>
<author fullname="Michel Veillette" initials="M." surname="Veillette
">
<organization>Trilliant Networks Inc.</organization>
</author>
<author fullname="Peter Van der Stok" initials="P." surname="Van der
Stok">
<organization>consultant</organization>
</author>
<author fullname="Alexander Pelov" initials="A." surname="Pelov">
<organization>Acklio</organization>
</author>
<author fullname="Andy Bierman" initials="A." surname="Bierman">
<organization>YumaWorks</organization>
</author>
<author fullname="Carsten Bormann" initials="C." surname="Bormann">
<organization>Universität Bremen TZI</organization>
</author>
<date day="4" month="September" year="2023"/>
<abstract>
<t> This document describes a network management interface for
constrained devices and networks, called CoAP Management Interface
(CORECONF). The Constrained Application Protocol (CoAP) is used to
access datastore and data node resources specified in YANG, or SMIv2
converted to YANG. CORECONF uses the YANG to CBOR mapping and
converts YANG identifier strings to numeric identifiers for payload
size reduction. CORECONF extends the set of YANG based protocols,
NETCONF and RESTCONF, with the capability to manage constrained
devices and networks.
</t> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.60
</abstract> 20.xml"/>
</front> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.72
<seriesInfo name="Internet-Draft" value="draft-ietf-core-comi-16"/> 24.xml"/>
</reference> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.72
<reference anchor="I-D.ietf-core-yang-library"> 28.xml"/>
<front> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.73
<title>Constrained YANG Module Library</title> 17.xml"/>
<author fullname="Michel Veillette" initials="M." surname="Veillette <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.81
"> 26.xml"/>
<organization>Trilliant Networks Inc.</organization> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
</author> 40.xml"/>
<author fullname="Ivaylo Petrov" initials="I." surname="Petrov"> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
<organization>Acklio</organization> 43.xml"/>
</author> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
<date day="11" month="January" year="2021"/> 44.xml"/>
<abstract> <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.83
<t> This document describes a constrained version of the YANG li 66.xml"/>
brary <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.84
that provides information about the YANG modules, datastores, and 07.xml"/>
datastore schemas used by a constrained network management server <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.87
(e.g., a CORECONF server). 92.xml"/>
</t> <!-- draft-ietf-core-comi (I-D Exists)
</abstract> "Long way" to fix initials, add surname, and add editor designations -->
</front> <reference anchor="CORE-COMI">
<seriesInfo name="Internet-Draft" value="draft-ietf-core-yang-library- <front>
03"/> <title>CoAP Management Interface (CORECONF)</title>
</reference> <author initials="M. V." surname="Veillette" fullname="Michel Veillette" r
<reference anchor="I-D.ietf-anima-constrained-voucher"> ole="editor">
<front> <organization>Trilliant Networks Inc.</organization>
<title>Constrained Bootstrapping Remote Secure Key Infrastructure (B </author>
RSKI)</title> <author initials="P." surname="van der Stok" fullname="Peter van der Stok"
<author fullname="Michael Richardson" initials="M." surname="Richard role="editor">
son"> <organization>consultant</organization>
<organization>Sandelman Software Works</organization> </author>
</author> <author initials="A." surname="Pelov" fullname="Alexander Pelov" role="edi
<author fullname="Peter Van der Stok" initials="P." surname="Van der tor">
Stok"> <organization>IMT Atlantique</organization>
<organization>vanderstok consultancy</organization> </author>
</author> <author initials="A." surname="Bierman" fullname="Andy Bierman">
<author fullname="Panos Kampanakis" initials="P." surname="Kampanaki <organization>YumaWorks</organization>
s"> </author>
<organization>Cisco Systems</organization> <author initials="C." surname="Bormann" fullname="Carsten Bormann" role="e
</author> ditor">
<author fullname="Esko Dijk" initials="E." surname="Dijk"> <organization>Universität Bremen TZI</organization>
<organization>IoTconsultancy.nl</organization> </author>
</author> <date month="March" day="4" year="2024" />
<date day="21" month="November" year="2023"/> </front>
<abstract> <seriesInfo name="Internet-Draft" value="draft-ietf-core-comi-17" />
<t> This document defines the Constrained Bootstrapping Remote S </reference>
ecure Key
Infrastructure (Constrained BRSKI) protocol, which provides a <!-- draft-ietf-core-yang-library (Expired)
solution for secure zero-touch bootstrapping of resource-constrained "Long way" to add editor designations -->
(IoT) devices into the network of a domain owner. This protocol is <reference anchor="YANG-LIBRARY">
designed for constrained networks, which may have limited data <front>
throughput or may experience frequent packet loss. Constrained BRSKI <title>Constrained YANG Module Library</title>
is a variant of the BRSKI protocol, which uses an artifact signed by <author fullname="Michel Veillette" initials="M." surname="Veillette" role="
the device manufacturer called the "voucher" which enables a new editor">
device and the owner's network to mutually authenticate. While the <organization>Trilliant Networks Inc.</organization>
BRSKI voucher is typically encoded in JSON, Constrained BRSKI uses a </author>
compact CBOR-encoded voucher. The BRSKI voucher definition is <author fullname="Ivaylo Petrov" initials="I." surname="Petrov" role="editor
extended with new data types that allow for smaller voucher sizes. ">
The Enrollment over Secure Transport (EST) protocol, used in BRSKI, <organization>Acklio</organization>
is replaced with EST-over-CoAPS; and HTTPS used in BRSKI is replaced </author>
with DTLS-secured CoAP (CoAPS). This document Updates RFC 8366 and <date day="11" month="January" year="2021"/>
RFC 8995. </front>
<seriesInfo name="Internet-Draft" value="draft-ietf-core-yang-library-03"/>
</reference>
<!-- draft-ietf-anima-constrained-voucher (WG Last Call)
"Long way" to fix surname -->
<reference anchor="CONSTRAINED-VOUCHER">
<front>
<title>Constrained Bootstrapping Remote Secure Key Infrastructure (cBRSKI)</
title>
<author fullname="Michael Richardson" initials="M." surname="Richardson">
<organization>Sandelman Software Works</organization>
</author>
<author fullname="Peter van der Stok" initials="P." surname="van der Stok">
<organization>vanderstok consultancy</organization>
</author>
<author fullname="Panos Kampanakis" initials="P." surname="Kampanakis">
<organization>Cisco Systems</organization>
</author>
<author fullname="Esko Dijk" initials="E." surname="Dijk">
<organization>IoTconsultancy.nl</organization>
</author>
<date day="3" month="March" year="2024"/>
</front>
<seriesInfo name="Internet-Draft" value="draft-ietf-anima-constrained-voucher-
24"/>
</reference>
<xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.92
54.xml"/>
</t>
</abstract>
</front>
<seriesInfo name="Internet-Draft" value="draft-ietf-anima-constrained-
voucher-22"/>
</reference>
<reference anchor="RFC9254">
<front>
<title>Encoding of Data Modeled with YANG in the Concise Binary Obje
ct Representation (CBOR)</title>
<author fullname="M. Veillette" initials="M." role="editor" surname=
"Veillette"/>
<author fullname="I. Petrov" initials="I." role="editor" surname="Pe
trov"/>
<author fullname="A. Pelov" initials="A." surname="Pelov"/>
<author fullname="C. Bormann" initials="C." surname="Bormann"/>
<author fullname="M. Richardson" initials="M." surname="Richardson"/
>
<date month="July" year="2022"/>
<abstract>
<t>YANG (RFC 7950) is a data modeling language used to model confi
guration data, state data, parameters and results of Remote Procedure Call (RPC)
operations or actions, and notifications.</t>
<t>This document defines encoding rules for YANG in the Concise Bi
nary Object Representation (CBOR) (RFC 8949).</t>
</abstract>
</front>
<seriesInfo name="RFC" value="9254"/>
<seriesInfo name="DOI" value="10.17487/RFC9254"/>
</reference>
<reference anchor="yangcatalog" target="https://yangcatalog.org"> <reference anchor="yangcatalog" target="https://yangcatalog.org">
<front> <front>
<title>YANG Catalog</title> <title>YANG Catalog</title>
<author> <author>
<organization/> <organization></organization>
</author> </author>
<date/> <date/>
</front> </front>
</reference> </reference>
<reference anchor="PYANG" target="https://github.com/mbj4668/pyang"> <reference anchor="PYANG" target="https://github.com/mbj4668/pyang">
<front> <front>
<title>An extensible YANG validator and converter in python</title> <title>An extensible YANG validator and converter in python</title>
<author initials="M." surname="Bjorklund" fullname="Martin Bjorklund "> <author initials="M." surname="Björklund" fullname="Martin Björklund ">
<organization/> <organization/>
</author> </author>
<date/> <date month="March" year="2024"/>
</front> </front>
<refcontent>commit 25f69e8</refcontent>
</reference> </reference>
<reference anchor="I-D.bormann-t2trg-deref-id">
<front>
<title>The "dereferenceable identifier" pattern</title>
<author fullname="Carsten Bormann" initials="C." surname="Bormann">
<organization>Universität Bremen TZI</organization>
</author>
<author fullname="Christian Amsüss" initials="C." surname="Amsüss">
</author>
<date day="19" month="December" year="2023"/>
<abstract>
<t> In a protocol or an application environment, it is often imp
ortant to
be able to create unambiguous identifiers for some meaning (concept
or some entity).
Due to the simplicity of creating URIs, these have become popular for <!-- draft-bormann-t2trg-deref-id (I-D Exists)
this purpose. Beyond the purpose of identifiers to be uniquely "Long way" to fix "double quotes within double quotes" in title -->
associated with a meaning, some of these URIs are in principle <reference anchor="DEREF-ID">
_dereferenceable_, so something can be placed that can be retrieved <front>
when encountering such a URI. <title>The &apos;dereferenceable identifier&apos; pattern</title>
<author fullname="Carsten Bormann" initials="C." surname="Bormann">
<organization>Universität Bremen TZI</organization>
</author>
<author fullname="Christian Amsüss" initials="C." surname="Amsüss"/>
<date day="2" month="March" year="2024"/>
</front>
<seriesInfo name="Internet-Draft" value="draft-bormann-t2trg-deref-id-03"/>
</reference>
// The present -01 version is a stub to draw some attention to the <xi:include href="https://bib.ietf.org/public/rfc/bibxml/reference.RFC.91
// opportunity that this pattern would benefit from a common 95.xml"/>
// description, documenting its benefits and pitfalls, and some
// mitigations for the latter.
</t>
</abstract>
</front>
<seriesInfo name="Internet-Draft" value="draft-bormann-t2trg-deref-id-
02"/>
</reference>
<reference anchor="RFC9195">
<front>
<title>A File Format for YANG Instance Data</title>
<author fullname="B. Lengyel" initials="B." surname="Lengyel"/>
<author fullname="B. Claise" initials="B." surname="Claise"/>
<date month="February" year="2022"/>
<abstract>
<t>There is a need to document data defined in YANG models at desi
gn time, implementation time, or when a live server is unavailable. This documen
t specifies a standard file format for YANG instance data, which follows the syn
tax and semantics of existing YANG models and annotates it with metadata.</t>
</abstract>
</front>
<seriesInfo name="RFC" value="9195"/>
<seriesInfo name="DOI" value="10.17487/RFC9195"/>
</reference>
</references> </references>
</references> </references>
<?line 1331?>
<section anchor="sid-file-example"> <section anchor="sid-file-example">
<name>".sid" file example</name> <name>".sid" File Example</name>
<t>The following ".sid" file (ietf-system@2014-08-06.sid) has been generat <t>The following ".sid" file ('ietf-system@2014-08-06.sid') has been gener
ed using the following yang modules:</t> ated using the following YANG modules:</t>
<ul spacing="normal"> <ul spacing="normal">
<li> <li>
<t>ietf-system@2014-08-06.yang (defined in <xref target="RFC7317"/>)</ t> <t>'ietf-system@2014-08-06.yang' (defined in <xref target="RFC7317"/>) </t>
</li> </li>
<li> <li>
<t>ietf-yang-types@2013-07-15.yang (defined in <xref target="RFC6991"/ >)</t> <t>'ietf-yang-types@2013-07-15.yang' (defined in <xref target="RFC6991 "/>)</t>
</li> </li>
<li> <li>
<t>ietf-inet-types@2013-07-15.yang (defined in <xref target="RFC6991"/ >)</t> <t>'ietf-inet-types@2013-07-15.yang' (defined in <xref target="RFC6991 "/>)</t>
</li> </li>
<li> <li>
<t>ietf-netconf-acm@2018-02-14.yang (defined in <xref target="RFC8341" />)</t> <t>'ietf-netconf-acm@2018-02-14.yang' (defined in <xref target="RFC834 1"/>)</t>
</li> </li>
<li> <li>
<t>iana-crypt-hash@2014-08-06.yang (defined in <xref target="RFC7317"/ >)</t> <t>'iana-crypt-hash@2014-08-06.yang' (defined in <xref target="RFC7317 "/>)</t>
</li> </li>
</ul> </ul>
<t>For purposes of exposition, line breaks have been introduced below in <t>For purposes of exposition, per <xref target="RFC8792"/>, line breaks h ave been introduced below in
some JSON strings that represent overly long identifiers.</t> some JSON strings that represent overly long identifiers.</t>
<!-- /^ *[^" ]+"/ -->
<figure anchor="sid-example-pretty"> <figure anchor="sid-example-pretty">
<name>Example .sid file (ietf-system, with extra line-breaks)</name> <name>Example &quot;.sid&quot; File ('ietf-system', with Extra Line Brea
ks)</name>
<sourcecode type="yang-sid"><![CDATA[ <sourcecode type="yang-sid"><![CDATA[
=============== NOTE: '\' line wrapping per RFC 8792 ================ =============== NOTE: '\' line wrapping per RFC 8792 ================
{ {
"ietf-sid-file:sid-file": { "ietf-sid-file:sid-file": {
"module-name": "ietf-system", "module-name": "ietf-system",
"module-revision": "2014-08-06", "module-revision": "2014-08-06",
"description": "Example sid file", "description": "Example '.sid' file",
"dependency-revision": [ "dependency-revision": [
{ {
"module-name": "ietf-yang-types", "module-name": "ietf-yang-types",
"module-revision": "2013-07-15" "module-revision": "2013-07-15"
}, },
{ {
"module-name": "ietf-inet-types", "module-name": "ietf-inet-types",
"module-revision": "2013-07-15" "module-revision": "2013-07-15"
}, },
{ {
skipping to change at line 2556 skipping to change at line 2909
"namespace": "data", "namespace": "data",
"identifier": "/ietf-system:system/radius/server/udp/shared-\ "identifier": "/ietf-system:system/radius/server/udp/shared-\
secret", secret",
"sid": "1774" "sid": "1774"
} }
] ]
} }
} }
]]></sourcecode> ]]></sourcecode>
</figure> </figure>
<!-- [rfced] Figure 3: Please confirm that the numbering between
"1715" and "1717" is correct here. We ask because (1) aside from the
two items between "1715" and "1717" (and "1716" seems to be missing),
all of the SID "17xx" numbers in the figure are in numerical order
and (2) we see "SIDs are assigned sequentially from the entry point
up to the size of the registered SID range" in Appendix B.
Original:
...
"namespace": "feature",
"identifier": "timezone-name",
"sid": "1714"
},
{
"namespace": "data",
"identifier": "/ietf-system:set-current-datetime",
"sid": "1715"
},
{
"namespace": "data",
"identifier": "/ietf-system:set-current-datetime/input",
"sid": "1775"
},
{
"namespace": "data",
"identifier": "/ietf-system:set-current-datetime/input/\
current-datetime",
"sid": "1776"
},
{
"namespace": "data",
"identifier": "/ietf-system:system",
"sid": "1717"
},
{
"namespace": "data",
"identifier": "/ietf-system:system-restart",
"sid": "1718"
},
... -->
</section> </section>
<section anchor="sid-auto-generation"> <section anchor="sid-auto-generation">
<name>SID auto generation</name> <name>SID Autogeneration</name>
<t>Assignment of SIDs to YANG items <bcp14>SHOULD</bcp14> be automated. <t>The assignment of SIDs to YANG items <bcp14>SHOULD</bcp14> be automated
.
The recommended process to assign SIDs is as follows:</t> The recommended process to assign SIDs is as follows:</t>
<ol spacing="normal" type="1"><li> <ol spacing="normal" type="1"><li>
<t>A tool extracts the different items defined for a specific YANG mod ule.</t> <t>A tool extracts the different items defined for a specific YANG mod ule.</t>
</li> </li>
<li> <li>
<t>The list of items is sorted in alphabetical order, 'namespace' in d escending order, 'identifier' in ascending order. The 'namespace' and 'identifie r' formats are described in the YANG module 'ietf-sid-file' defined in <xref tar get="sid-file-format"/>.</t> <t>The list of items is sorted in alphabetical order. 'namespace' ent ries are sorted in descending order, and 'identifier' entries are sorted in asce nding order. The 'namespace' and 'identifier' formats are described in the YANG module 'ietf-sid-file' defined in <xref target="sid-file-format"/>.</t>
</li> </li>
<li> <li>
<t>SIDs are assigned sequentially from the entry point up to the size of the registered SID range. This approach is recommended to minimize the serial ization overhead, especially when delta between a reference SID and the current SID is used by protocols aiming to reduce message size.</t> <t>SIDs are assigned sequentially from the entry point up to the size of the registered SID range. This approach is recommended to minimize the serial ization overhead, especially when the delta between a reference SID and the curr ent SID is used by protocols aiming to reduce message size.</t>
</li> </li>
<li> <li>
<t>If the number of items exceeds the SID range(s) allocated to a YANG module, an extra range is added for subsequent assignments.</t> <t>If the number of items exceeds the SID range(s) allocated to a YANG module, an extra range is added for subsequent assignments.</t>
</li> </li>
<li> <li>
<t>The "dependency-revision" should reflect the revision numbers of ea <t>The 'dependency-revision' list item should reflect the revision num
ch bers of each
YANG module that the YANG module imports at the moment of the generation.</t> YANG module that the YANG module imports at the moment of file generation.</t>
</li> </li>
</ol> </ol>
<t>When updating a YANG module that is in active use, the existing SID ass ignments are maintained. <t>When updating a YANG module that is in active use, the existing SID ass ignments are maintained.
(In contrast, when evolving an early draft that has not yet been adopted by a co (In contrast, when evolving an early version of an Internet-Draft that has not y
mmunity of developers, SID assignments are often better done from scratch after et been adopted by a community of developers, SID assignments are often better d
a revision.) one from scratch after a revision.)
If the name of a schema node changes, but the data remain structurally and seman If the name of a schema node changes but the data remain structurally and semant
tically similar to what was previously available under an old name, the SID that ically similar to what was previously available under an old name, the SID that
was used for the old name <bcp14>MAY</bcp14> continue to be used for the new na was used for the old name <bcp14>MAY</bcp14> continue to be used for the new nam
me. e.
If the meaning of an item changes, a new SID <bcp14>MAY</bcp14> be assigned to i If the meaning of an item changes, a new SID <bcp14>MAY</bcp14> be assigned to i
t; this is particularly useful to allow the new SID to identify the new structur t; this is particularly useful for allowing the new SID to identify the new stru
e or semantics of the item. cture or semantics of the item.
If the YANG data type changes in a new revision of a published module, If the YANG data type changes in a new revision of a published module
such that the resulting CBOR encoding is changed, then implementations will be a ided significantly if a new SID is assigned. such that the resulting CBOR encoding is changed, then implementations will be a ided significantly if a new SID is assigned.
Note that these decisions are generally at the discretion of the YANG module aut hor, who should decide if the benefits of a manual intervention are worth the de viation from automatic assignment.</t> Note that these decisions are generally at the discretion of the YANG module aut hor, who should decide if the benefits of a manual intervention are worth the de viation from automatic assignment.</t>
<t>In case of an update to an existing ".sid" file, an additional step is needed <t>In the case of an update to an existing ".sid" file, an additional step is needed
that increments the ".sid" file version number. If there was no version number that increments the ".sid" file version number. If there was no version number
in the previous version of the ".sid" file, 0 is assumed as the version number in the previous version of the ".sid" file, 0 is assumed to be the version numbe r
of the old version of the ".sid" file and the version number is 1 for the new of the old version of the ".sid" file and the version number is 1 for the new
".sid" file. Apart from that, changes of ".sid" files can also be automated usin ".sid" file. Apart from that, changes to ".sid" files can also be automated usin
g g
the same method described above, only unassigned YÀNG items are processed at the same method as that described above, except that in step #3, only unassigned
step #3. Already existing items in the ".sid" file should not be given new SIDs. YANG items are processed. Already-existing items in the ".sid" file should not
</t> be given new SIDs.
<!-- [rfced] Appendix B: This sentence did not parse. We updated it
as follows. If this is incorrect, please provide clarifying text.
Original (we removed the non-ASCII accent mark over the "A" in "YANG"):
Apart from
that, changes of ".sid" files can also be automated using the same
method described above, only unassigned YÀNG items are processed at
step #3.
Currently:
Apart from that, changes to ".sid" files can also be automated using
the same method as that described above, except that in step #3, only
unassigned YANG items are processed. -->
</t>
<t>Note that ".sid" file versions are specific to a YANG module revision. For each <t>Note that ".sid" file versions are specific to a YANG module revision. For each
new YANG module or each new revision of an existing YANG module, the version new YANG module or each new revision of an existing YANG module, the version
number of the initial ".sid" file should either be 0 or should not be present.</ t> number of the initial ".sid" file either (1)&nbsp;should be 0 or (2)&nbsp;should not be present.</t>
<t>Note also that RPC or action "input" and "output" YANG items <bcp14>MUS T</bcp14> always be <t>Note also that RPC or action "input" and "output" YANG items <bcp14>MUS T</bcp14> always be
assigned SID even if they don't contain further YANG items. The reason for this assigned SIDs even if they don't contain further YANG items. The reason for this
requirement is that other modules can augment the given module and those SIDs requirement is that other modules can augment the given module and those SIDs
might be necessary.</t> might be necessary.</t>
</section> </section>
<section anchor="sid-lifecycle-ex"> <section anchor="sid-lifecycle-ex">
<name>".sid" file lifecycle</name> <name>".sid" File Lifecycle</name>
<t>Before assigning SIDs to their YANG modules, YANG module authors must a cquire a <t>Before assigning SIDs to their YANG modules, YANG module authors must a cquire a
SID range from a "YANG SID Range Registry". If the YANG module is part of an IET SID range from a registry of YANG-SID Ranges. If the YANG module is part of an I
F ETF
draft or RFC, the SID range need to be acquired from the "IETF YANG SID Range Internet-Draft or RFC, the SID range needs to be acquired from the "IETF YANG-SI
Registry" as defined in <xref target="ietf-iana-sid-range-allocation"/>. For the D Ranges"
other YANG registry as defined in <xref target="ietf-iana-sid-range-allocation"/>. For the
modules, the authors can acquire a SID range from any "YANG SID Range Registry" other YANG
of modules, the authors can choose to acquire a SID range from any registry of YANG
their choice.</t> -SID Ranges.
<t>Once the SID range is acquired, owners can use it to generate ".sid" fi
le/s <!-- [rfced] Appendix C: We found these quoted and capitalized
for their YANG module/s. It is recommended to leave some unallocated SIDs items confusing. Because they are used generally and appear to
indicate a possible variety of registries other than those to be
managed by IANA, we updated these sentences accordingly. Please let
us know any concerns. (For example, could there be future
non-IANA-managed registries that would share the same names as the
registries defined by this document?)
We also see
* "SID range registry" (Table 1)
* "the SID range registry" (Section 2.4)
Original:
Before assigning SIDs to their YANG modules, YANG module authors must
acquire a SID range from a "YANG SID Range Registry".
...
For the other YANG modules, the authors can acquire a
SID range from any "YANG SID Range Registry" of their choice.
Currently:
Before assigning SIDs to their YANG modules, YANG module authors must
acquire a SID range from a registry of YANG-SID Ranges.
...
For the other YANG modules, the authors can choose to
acquire a SID range from any registry of YANG-SID Ranges. -->
</t>
<t>Once the SID range is acquired, owners can use it to generate one or mo
re ".sid" files for their YANG module or modules. It is recommended to leave so
me unallocated SIDs
following the allocated range in each ".sid" file in order to allow better following the allocated range in each ".sid" file in order to allow better
evolution of the YANG module in the future. Generation of ".sid" files should evolution of the owners' YANG modules in the future. Generation of ".sid" files should
be performed using an automated tool. Note that ".sid" files can only be be performed using an automated tool. Note that ".sid" files can only be
generated for YANG modules and not for submodules.</t> generated for YANG modules and not for submodules.</t>
<section anchor="sid-file-creation"> <section anchor="sid-file-creation">
<name>".sid" File Creation</name> <name>".sid" File Creation</name>
<t>The following activity diagram summarizes the creation of a YANG modu le and its associated ".sid" file.</t> <t>The following activity diagram summarizes the creation of a YANG modu le and its associated ".sid" file.</t>
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specified, which will make the artwork not scale. Please consider
whether scaling should be enabled. Scaling will allow the
figures to be resized when viewed on a mobile device; however, there
may be aesthetic trade-offs (e.g., a given image may appear too large
on a desktop screen, or different figures may scale differently based
on their relative sizes). Please review the HTML and PDF outputs,
noting that we will need you to update the edited copy of the XML and
specify the viewBox item where appropriate.
The warning (one for each figure):
Warning: Found SVG with width or height specified, which will make
the artwork not scale. Specify a viewBox only to let the artwork
scale. -->
<figure anchor="fig-sid-file-creation"> <figure anchor="fig-sid-file-creation">
<name>SID Lifecycle</name> <name>SID Lifecycle</name>
<artset> <artset>
<artwork type="svg" align="left"><svg xmlns="http://www.w3.org/2000/ svg" version="1.1" height="832" width="504" viewBox="0 0 504 832" class="diagram " text-anchor="middle" font-family="monospace" font-size="13px"> <artwork type="svg" align="left"><svg xmlns="http://www.w3.org/2000/ svg" version="1.1" height="832" width="504" viewBox="0 0 504 832" class="diagram " text-anchor="middle" font-family="monospace" font-size="13px">
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skipping to change at line 2733 skipping to change at line 3185
<circle cx="16" cy="48" r="6" class="opendot" fill="white" strok e="black"/> <circle cx="16" cy="48" r="6" class="opendot" fill="white" strok e="black"/>
<g class="text"> <g class="text">
<text x="108" y="52">Creation</text> <text x="108" y="52">Creation</text>
<text x="156" y="52">of</text> <text x="156" y="52">of</text>
<text x="176" y="52">a</text> <text x="176" y="52">a</text>
<text x="92" y="68">YANG</text> <text x="92" y="68">YANG</text>
<text x="140" y="68">module</text> <text x="140" y="68">module</text>
<text x="116" y="148">Standardized</text> <text x="116" y="148">Standardized</text>
<text x="240" y="148">yes</text> <text x="240" y="148">yes</text>
<text x="84" y="164">YANG</text> <text x="84" y="164">YANG</text>
<text x="132" y="164">module</text> <text x="132" y="164">module?</text>
<text x="168" y="164">?</text>
<text x="140" y="196">no</text> <text x="140" y="196">no</text>
<text x="104" y="244">Constrained</text> <text x="104" y="244">Constrained</text>
<text x="200" y="244">yes</text> <text x="200" y="244">yes</text>
<text x="248" y="244">SID</text> <text x="248" y="244">SID</text>
<text x="288" y="244">range</text> <text x="288" y="244">range</text>
<text x="104" y="260">application</text> <text x="104" y="260">application?</text>
<text x="160" y="260">?</text>
<text x="284" y="260">registration</text> <text x="284" y="260">registration</text>
<text x="132" y="292">no</text> <text x="132" y="292">no</text>
<text x="76" y="340">YANG</text> <text x="76" y="340">YANG</text>
<text x="124" y="340">module</text> <text x="124" y="340">module</text>
<text x="240" y="340">SID</text> <text x="276" y="340">SID subrange</text>
<text x="296" y="340">sub-range</text>
<text x="84" y="356">update</text> <text x="84" y="356">update</text>
<text x="268" y="356">assignment</text> <text x="268" y="356">assignment</text>
<text x="244" y="436">".sid"</text> <text x="244" y="436">".sid"</text>
<text x="292" y="436">file</text> <text x="292" y="436">file</text>
<text x="412" y="436">Rework</text> <text x="430" y="436">Rework YANG</text>
<text x="460" y="436">YANG</text>
<text x="260" y="452">generation</text> <text x="260" y="452">generation</text>
<text x="436" y="452">module</text> <text x="436" y="452">module</text>
<text x="344" y="516">yes</text> <text x="344" y="516">yes</text>
<text x="252" y="532">Work</text> <text x="252" y="532">Work-</text>
<text x="284" y="532">in</text> <text x="284" y="532">in-</text>
<text x="268" y="548">progress</text> <text x="268" y="548">progress?</text>
<text x="292" y="580">no</text> <text x="292" y="580">no</text>
<text x="248" y="628">RFC</text> <text x="248" y="628">RFC</text>
<text x="332" y="628">no</text> <text x="332" y="628">no</text>
<text x="252" y="644">publication?</text> <text x="252" y="644">publication?</text>
<text x="216" y="676">yes</text> <text x="216" y="676">yes</text>
<text x="228" y="724">IANA</text> <text x="228" y="724">IANA</text>
<text x="400" y="724">Third</text> <text x="426" y="724">Third-party</text>
<text x="448" y="724">party</text>
<text x="228" y="740">registration</text> <text x="228" y="740">registration</text>
<text x="428" y="740">registration</text> <text x="428" y="740">registration</text>
<text x="236" y="820">[DONE]</text> <text x="236" y="820">[DONE]</text>
</g> </g>
</svg> </svg>
</artwork> </artwork>
<artwork type="ascii-art"><![CDATA[ <artwork type="ascii-art"><![CDATA[
+---------------+ +---------------+
o | Creation of a | o | Creation of a |
-+- -->| YANG module | -+- -->| YANG module |
/ \ +------+--------+ / \ +------+--------+
| |
v v
.-------------. .-------------.
/ Standardized \ yes / Standardized \ yes
\ YANG module ? /------------+ \ YANG module? /------------+
'-----+-------' | '-----+-------' |
| no | | no |
v v v v
.-------------. +---------------+ .-------------. +---------------+
+--> / Constrained \ yes | SID range | +--> / Constrained \ yes | SID range |
| \ application ? /---->| registration |<--------+ | \ application? /---->| registration |<--------+
| '-----+-------' +------+--------+ | | '-----+-------' +------+--------+ |
| | no | | | | no | |
| v v | | v v |
| +---------------+ +---------------+ | | +---------------+ +---------------+ |
+----+ YANG module | | SID sub-range | | +----+ YANG module | | SID subrange | |
| update | | assignment |<---------+ | update | | assignment |<---------+
+---------------+ +-------+-------+ | +---------------+ +-------+-------+ |
| | | |
v | v |
+---------------+ +------+------+ +---------------+ +------+------+
| ".sid" file | | Rework YANG | | ".sid" file | | Rework YANG |
| generation | | module | | generation | | module |
+-------+-------+ +-------------+ +-------+-------+ +-------------+
| ^ | ^
v | v |
.----------. yes | .----------. yes |
/ Work in \ ------------+ / Work-in- \ ------------+
\ progress / \ progress? /
'----+-----' '----+-----'
| no | no
v v
.-------------. .-------------.
/ RFC \ no / RFC \ no
\ publication? /--------------+ \ publication? /--------------+
'------+------' | '------+------' |
yes | | yes | |
v v v v
+---------------+ +---------------+ +---------------+ +---------------+
| IANA | | Third party | | IANA | | Third-party |
| registration | | registration | | registration | | registration |
+-------+-------+ +-------+-------+ +-------+-------+ +-------+-------+
| | | |
+------------------------+ +------------------------+
v v
[DONE] [DONE]
]]></artwork> ]]></artwork>
</artset> </artset>
</figure> </figure>
</section> </section>
<section anchor="sid-file-update"> <section anchor="sid-file-update">
<name>".sid" File Update</name> <name>".sid" File Update</name>
<t>The following Activity diagram summarizes the update of a YANG module and its associated ".sid" file.</t> <t>The following activity diagram summarizes the update of a YANG module and its associated ".sid" file.</t>
<figure anchor="fig-sid-file-update"> <figure anchor="fig-sid-file-update">
<name>YANG and ".sid" file update</name> <name>YANG and ".sid" File Update</name>
<artset> <artset>
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skipping to change at line 2910 skipping to change at line 3357
<text x="168" y="52">the</text> <text x="168" y="52">the</text>
<text x="92" y="68">YANG</text> <text x="92" y="68">YANG</text>
<text x="140" y="68">module</text> <text x="140" y="68">module</text>
<text x="84" y="84">or</text> <text x="84" y="84">or</text>
<text x="140" y="84">include(s)</text> <text x="140" y="84">include(s)</text>
<text x="84" y="100">or</text> <text x="84" y="100">or</text>
<text x="136" y="100">import(s)</text> <text x="136" y="100">import(s)</text>
<text x="112" y="180">New</text> <text x="112" y="180">New</text>
<text x="152" y="180">items</text> <text x="152" y="180">items</text>
<text x="232" y="180">yes</text> <text x="232" y="180">yes</text>
<text x="128" y="196">created</text> <text x="128" y="196">created?</text>
<text x="176" y="196">?</text>
<text x="172" y="228">no</text> <text x="172" y="228">no</text>
<text x="232" y="260">SID</text> <text x="232" y="260">SID</text>
<text x="272" y="260">range</text> <text x="272" y="260">range</text>
<text x="352" y="260">yes</text> <text x="352" y="260">yes</text>
<text x="408" y="260">Extra</text> <text x="442" y="260">Extra subrange</text>
<text x="472" y="260">sub-range</text> <text x="256" y="276">exhausted?</text>
<text x="256" y="276">exhausted</text>
<text x="304" y="276">?</text>
<text x="428" y="276">assignment</text> <text x="428" y="276">assignment</text>
<text x="292" y="308">no</text> <text x="292" y="308">no</text>
<text x="236" y="388">".sid"</text> <text x="236" y="388">".sid"</text>
<text x="284" y="388">file</text> <text x="284" y="388">file</text>
<text x="236" y="404">update</text> <text x="236" y="404">update</text>
<text x="288" y="404">based</text> <text x="288" y="404">based</text>
<text x="220" y="420">on</text> <text x="220" y="420">on</text>
<text x="268" y="420">previous</text> <text x="268" y="420">previous</text>
<text x="236" y="436">".sid"</text> <text x="236" y="436">".sid"</text>
<text x="284" y="436">file</text> <text x="284" y="436">file</text>
<text x="252" y="516">Publicly</text> <text x="252" y="516">Publicly</text>
<text x="352" y="516">yes</text> <text x="352" y="516">yes</text>
<text x="404" y="516">YANG</text> <text x="404" y="516">YANG</text>
<text x="452" y="516">module</text> <text x="452" y="516">module</text>
<text x="256" y="532">available</text> <text x="256" y="532">available?</text>
<text x="304" y="532">?</text>
<text x="436" y="532">registration</text> <text x="436" y="532">registration</text>
<text x="284" y="564">no</text> <text x="284" y="564">no</text>
<text x="268" y="628">[DONE]</text> <text x="268" y="628">[DONE]</text>
</g> </g>
</svg> </svg>
</artwork> </artwork>
<artwork type="ascii-art"><![CDATA[ <artwork type="ascii-art"><![CDATA[
+---------------+ +---------------+
o | Update of the | o | Update of the |
-+- -->| YANG module | -+- -->| YANG module |
/ \ | or include(s) | / \ | or include(s) |
| or import(s) | | or import(s) |
+------+--------+ +------+--------+
| |
v v
.-------------. .-------------.
/ New items \ yes / New items \ yes
\ created ? /------+ \ created? /------+
'------+------' | '------+------' |
| no v | no v
| .-------------. +----------------+ | .-------------. +----------------+
| / SID range \ yes | Extra sub-range| | / SID range \ yes | Extra subrange |
| \ exhausted ? /---->| assignment | | \ exhausted? /---->| assignment |
| '------+------' +-------+--------+ | '------+------' +-------+--------+
| | no | | | no |
| +---------------------+ | +---------------------+
| | | |
| v | v
| +---------------+ | +---------------+
| | ".sid" file | | | ".sid" file |
| | update based | | | update based |
| | on previous | | | on previous |
| | ".sid" file | | | ".sid" file |
| +-------+-------+ | +-------+-------+
| | | |
| v | v
| .-------------. +---------------+ | .-------------. +---------------+
| / Publicly \ yes | YANG module | | / Publicly \ yes | YANG module |
| \ available ? /---->| registration | | \ available? /---->| registration |
| '------+------' +-------+-------+ | '------+------' +-------+-------+
| | no | | | no |
+--------------+---------------------+ +--------------+---------------------+
| |
v v
[DONE] [DONE]
]]></artwork> ]]></artwork>
</artset> </artset>
</figure> </figure>
<!-- [rfced] Figure 5: Does "Update of the YANG module or include(s)
or import(s)" mean "Update of a YANG module, its include(s), or its
import(s)", or something else? Please clarify.
Original:
...
| Update of the |
| YANG module |
| or include(s) |
| or import(s) |
...
Possibly (we would need you to also update the SVG):
| Update of a |
| YANG module, its |
| include(s), or |
| its import(s) | -->
</section> </section>
</section> </section>
<section anchor="keeping-a-sid-file-in-a-yang-instance-data-file"> <section anchor="keeping-a-sid-file-in-a-yang-instance-data-file">
<name>Keeping a SID File in a YANG Instance Data file</name> <name>Keeping a &quot;.sid&quot; File in a YANG Instance Data File</name>
<t><xref target="RFC9195"/> defines a format for "YANG Instance Data". <t><xref target="RFC9195"/> defines a format for "YANG instance data".
This essentially leads to an encapsulation of the instance data within This essentially leads to an encapsulation of the instance data within
some metadata envelope.</t> some metadata envelope.</t>
<t>If a SID file needs to be stored in a YANG Instance Data file, this <t>If a ".sid" file needs to be stored in a YANG instance data file, this
can be achieved by embedding the value of the SID file as the value of the can be achieved by embedding the value of the ".sid" file as the value of the
<tt>content-data</tt> member in the following template, and copying over the <tt>content-data</tt> member in the following template and copying over the
second-level members as indicated with the angle brackets:</t> second-level members as indicated with the angle brackets:</t>
<sourcecode type="yang-instance-data"><![CDATA[ <sourcecode type="yang-instance-data"><![CDATA[
{ {
"ietf-yang-instance-data:instance-data-set": { "ietf-yang-instance-data:instance-data-set": {
"name": "<module-name>@<module-revision>.sid", "name": "<module-name>@<module-revision>.sid",
"description": ["<description>"], "description": ["<description>"],
"content-schema": { "content-schema": {
"module": "ietf-sid-file@2023-10-27" "module": "ietf-sid-file@2023-10-27"
}, },
"content-data": { <replace this object> "content-data": { <replace this object>
"ietf-sid-file:sid-file" : { "ietf-sid-file:sid-file" : {
"module-name": ... "module-name": ...
} }
} }
} }
} }
]]></sourcecode> ]]></sourcecode>
<t><cref anchor="rfced">RFC editor: Please replace the module date by the
correct
one for the ietf-sid-file module.</cref></t>
</section> </section>
<section numbered="false" anchor="acknowledgments"> <section numbered="false" anchor="acknowledgments">
<name>Acknowledgments</name> <name>Acknowledgments</name>
<t>The authors would like to thank <contact fullname="Andy Bierman"/>, <t>The authors would like to thank <contact fullname="Andy Bierman"/>,
<contact fullname="Abhinav Somaraju"/>, <contact fullname="Peter van der Stok"/> , <contact fullname="Laurent Toutain"/> and <contact fullname="Abhinav Somaraju"/>, <contact fullname="Peter van der Stok"/> , <contact fullname="Laurent Toutain"/>, and
<contact fullname="Randy Turner"/> for their help during the development of this document and <contact fullname="Randy Turner"/> for their help during the development of this document and
their useful comments during the review process. their useful comments during the review process.
Special thanks go to the IESG members who supplied very useful Special thanks go to the IESG members who supplied very useful
comments during the IESG processing phase, in particular to comments during the IESG processing phase, in particular to
<contact fullname="Benjamin Kaduk"/> and <contact fullname="Rob Wilton"/>, and t o <contact fullname="Francesca Palombini"/> as <contact fullname="Benjamin Kaduk"/> and <contact fullname="Rob Wilton"/>, and t o <contact fullname="Francesca Palombini"/> as
responsible AD.</t> responsible AD.</t>
</section> </section>
<section anchor="contributors" numbered="false" toc="include" removeInRFC="f alse"> <section anchor="contributors" numbered="false" toc="include" removeInRFC="f alse">
<name>Contributors</name> <name>Contributors</name>
<contact initials="A." surname="Bierman" fullname="Andy Bierman"> <contact initials="A." surname="Bierman" fullname="Andy Bierman">
<organization>YumaWorks</organization> <organization>YumaWorks</organization>
<address> <address>
<postal> <postal>
<street>685 Cochran St.</street> <street>685 Cochran St.</street>
<street>Suite #160</street> <street>Suite #160</street>
<city>Simi Valley</city> <city>Simi Valley</city>
<region>CA</region> <region>CA</region>
<code>93065</code> <code>93065</code>
<country>USA</country> <country>United States of America</country>
</postal> </postal>
<email>andy@yumaworks.com</email> <email>andy@yumaworks.com</email>
</address> </address>
</contact> </contact>
</section> </section>
</back> </back>
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<!-- [rfced] Please review the "Inclusive Language" portion of the
online Style Guide at
<https://www.rfc-editor.org/styleguide/part2/#inclusive_language>,
and let us know if any changes are needed.
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</rfc> </rfc>
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