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. It's a simple draft, defining a few new flags, and I don't see any problems with it. I have one minor question; in section 2.2 is this: An Ingress LSR sets the OOB mapping indication flag to signal the Egress LSR that binding of RSVP-TE LSP to an application and payload identification is being signaled out-of-band. This flag MUST NOT be modified by any other LSRs in the network. LSRs other than the Egress LSRs SHOULD ignore this flag. On that last "SHOULD": what does it mean for any other LSR *not* to ignore the flag? That is, what can they do? How can they not ignore it, since there's no defined behaviour for them to do with it? Barry