rfc9603v2.txt | rfc9603.txt | |||
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skipping to change at line 629 ¶ | skipping to change at line 629 ¶ | |||
with an SRv6-PCE-CAPABILITY sub-TLV, but the PST list does not | with an SRv6-PCE-CAPABILITY sub-TLV, but the PST list does not | |||
contain PST=3, then the PCEP speaker MUST ignore the SRv6-PCE- | contain PST=3, then the PCEP speaker MUST ignore the SRv6-PCE- | |||
CAPABILITY sub-TLV. | CAPABILITY sub-TLV. | |||
In case the MSD-Type in the SRv6-PCE-CAPABILITY sub-TLV received by | In case the MSD-Type in the SRv6-PCE-CAPABILITY sub-TLV received by | |||
the PCE does not correspond to one of the SRv6 MSD types, the PCE | the PCE does not correspond to one of the SRv6 MSD types, the PCE | |||
MUST respond with a PCErr message (Error-Type = 1 ("PCEP session | MUST respond with a PCErr message (Error-Type = 1 ("PCEP session | |||
establishment failure") and Error-Value = 1 ("reception of an invalid | establishment failure") and Error-Value = 1 ("reception of an invalid | |||
Open message or a non Open message.")). | Open message or a non Open message.")). | |||
Note that the MSD-Type, MSD-Value exchanged via the SRv6-PCE- | Note that the (MSD-Type,MSD-Value) pair exchanged via the SRv6-PCE- | |||
CAPABILITY sub-TLV indicates the SRv6 SID imposition limit for the | CAPABILITY sub-TLV indicates the SRv6 SID imposition limit for the | |||
sender PCC node only. However, if a PCE learns these via alternate | sender PCC node only. However, if a PCE learns these via alternate | |||
mechanisms, e.g., routing protocols [RFC9352], then it ignores the | mechanisms, e.g., routing protocols [RFC9352], then it ignores the | |||
values in the SRv6-PCE-CAPABILITY sub-TLV. Furthermore, whenever a | values in the SRv6-PCE-CAPABILITY sub-TLV. Furthermore, whenever a | |||
PCE learns any other SRv6 MSD types that may be defined in the future | PCE learns any other SRv6 MSD types that may be defined in the future | |||
via alternate mechanisms, it MUST use those values regardless of the | via alternate mechanisms, it MUST use those values regardless of the | |||
values exchanged in the SRv6-PCE-CAPABILITY sub-TLV. | values exchanged in the SRv6-PCE-CAPABILITY sub-TLV. | |||
During path computation, a PCE must consider the MSD information of | During path computation, a PCE must consider the MSD information of | |||
all the nodes along the path instead of only the MSD information of | all the nodes along the path instead of only the MSD information of | |||
End of changes. 1 change blocks. | ||||
1 lines changed or deleted | 1 lines changed or added | |||
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