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Last Call Review of draft-ietf-bier-php-12
review-ietf-bier-php-12-secdir-lc-emery-2024-10-03-00

Request Review of draft-ietf-bier-php
Requested revision No specific revision (document currently at 12)
Type Last Call Review
Team Security Area Directorate (secdir)
Deadline 2024-10-10
Requested 2024-09-26
Authors Zhaohui (Jeffrey) Zhang
I-D last updated 2024-10-03
Completed reviews Rtgdir Last Call review of -11 by Andy Smith (diff)
Secdir Last Call review of -12 by Shawn M Emery
Opsdir Last Call review of -12 by Jen Linkova
Genart Last Call review of -12 by Lars Eggert
Assignment Reviewer Shawn M Emery
State Completed
Request Last Call review on draft-ietf-bier-php by Security Area Directorate Assigned
Posted at https://mailarchive.ietf.org/arch/msg/secdir/LYCsR_wi0g0frGcMejvKOKIvnYs
Reviewed revision 12
Result Has nits
Completed 2024-10-03
review-ietf-bier-php-12-secdir-lc-emery-2024-10-03-00
I have reviewed this document as part of the security directorate's ongoing
effort to review all IETF documents being processed by the IESG. These comments
were written primarily for the benefit of the security area directors. Document
editors and WG chairs should treat these comments just like any other last call
comments.

This standards track draft specifies a protocol for removing the Bit Index
Explicit Replication (BIER) header by the 2nd to last router before forwarding
to a BIER incapable router.  The goal of the protocol is to prevent the last
router in the path from unnecessarily processing the BIER header.

The security considerations sections does exist and discloses that the protocol
does not introduce any additional security implications beyond that of "BIER
architecture and OSPF/IS-IS/BGP extensions for BIER signaling".  It would be
helpful to outline the relevant RFCs that each of these building blocks of this
draft is dependent upon on in this section.  I focused this review on RFC8279
and believe that the aforementioned assertion is correct.

General comments:

A well written document, covering intricate conditionals.

Editorial comments:

None.