Last Call Review of draft-ietf-mpls-ldp-ip-pw-capability-07
review-ietf-mpls-ldp-ip-pw-capability-07-secdir-lc-perlman-2014-05-15-00

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 document is about how label switching routers (LSRs) can tell their
neighbor not to advertise state about unsupported applications.  This
apparently was not thought of originally, and was introduced in RFC 5561.  So
this document introduces a way to turn off advertisement of earlier
applications (before RFC 5561).

As specified in the security considerations section, this certainly does not
introduce any security issues.  If the neighbor doesn't understand the TLV , it
will continue to advertise unwanted information, and apparently what was done
before this was through configuration.  This document allows explicit
advertisement of disinterest in applications before RFC 5561.  This is an
improvement over configuration..

There's a lot of awkward English here and there, but i assume it will be fixed
by the RFC editor.  For example, in the last line of the abstract

"

 which

   would have otherwise be advertised over the established LDP session"

"be" should be "been".

Radia