Last Call Review of draft-ietf-bess-bgp-srv6-args-05
review-ietf-bess-bgp-srv6-args-05-genart-lc-knodel-2025-02-21-00

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Document: draft-ietf-bess-bgp-srv6-args-??
Reviewer: Mallory Knodel
Review Date: 2025-02-21
IETF LC End Date: 2025-03-04
IESG Telechat date: Not scheduled for a telechat

Summary: This document updates recommendations "for the signaling and
processing of SRv6 SID advertisements for BGP Service routes associated with
SRv6 Endpoint Behaviors that support arguments" based on lessons learned from
implementations of RFC9252.

Major issues: None.

Minor issues: It would perhaps help readers if in the introduction to the
document that updates RFC9252, the authors quoted one seemingly critical
passage, namely the description of the Transposition Scheme:

   This later form of encoding is
   referred to as the Transposition Scheme, where the SRv6 SID Structure
   Sub-Sub-TLV describes the sizes of the parts of the SRv6 SID and also
   indicates the offset of the variable part along with its length in
   the SRv6 SID value.  The use of the Transposition Scheme is
   RECOMMENDED for the specific service encodings that allow it, as
   described ...

This passage might then be modified in a clearer manner given the goals of the
current document. Or perhaps this belongs in Section 4 on backwards
compatibility.

Nits/editorial comments: None. Well written and straight forward.