Last Call Review of draft-ietf-mpls-retire-ach-tlv-02
I 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 document updates RFC 5586 by retiring ACH TLVs (an MPLS
extensibility mechanism) and removing the associated IANA registry.
The Security Considerations section states that by removing an unused
feature of MPLS security of implementations is improved. I tend to
agree, simplicity is a good thing.
It also states that the removed feature can be used to secure messages
on the G-ACh in a generic way, but that no such mechanism was proposed
so far. I think this is a fair comment.
I think the Security Considerations section is quite reasonable for this
document. I don't have any issues with this document.