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Status: Verified (1)

RFC 8287, "Label Switched Path (LSP) Ping/Traceroute for Segment Routing (SR) IGP-Prefix and IGP-Adjacency Segment Identifiers (SIDs) with MPLS Data Planes", December 2017

Source of RFC: mpls (rtg)

Errata ID: 6389
Status: Verified
Type: Editorial
Publication Format(s) : TEXT

Reported By: James Bensley
Date Reported: 2021-01-19
Verifier Name: Deborah Brungard
Date Verified: 2021-02-26

Section 5.2 says:

5.2.  IPv6 IGP-Prefix Segment ID

   The IPv6 IGP-Prefix Segment ID is defined in [SR].  The format is as
   specified below:

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                         IPv6 Prefix                           |
     |                                                               |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |Prefix Length  |    Protocol   |              Reserved         |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   IPv6 Prefix

      This field carries the IPv6 prefix to which the Segment ID is
      assigned.  In case of an Anycast Segment ID, this field will carry
      the IPv4 Anycast address.

It should say:

5.2.  IPv6 IGP-Prefix Segment ID

   The IPv6 IGP-Prefix Segment ID is defined in [SR].  The format is as
   specified below:

      0                   1                   2                   3
      0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |                                                               |
     |                         IPv6 Prefix                           |
     |                                                               |
     |                                                               |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
     |Prefix Length  |    Protocol   |              Reserved         |
     +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   IPv6 Prefix

      This field carries the IPv6 prefix to which the Segment ID is
      assigned.  In case of an Anycast Segment ID, this field will carry
      the IPv6 Anycast address.

Notes:

Copy-pasta reusing the IPv4 IGP-Prefix Segment ID description for the IPv6 IGP-Prefix Segment ID description, and in the case of an IPv6 Anycast Segment ID it states that an IPv4 prefix should be entered into the IPv6 Prefix field.

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