The MPLS WG Archive

[David Charlap <David.Charlap@marconi.com>]

Sean Crocker wrote:
> 
>> You mean RFC 2205.  Non-RSVP node discovery is part of the core
>> RSVP, not part of the RSVP-TE extensions.
> 
> I meant what I said.  RFC3209 4.2.5 not only points to RFC2205 3.8,
> it also makes the requirement unambiguous.

It adds a new requirement.  Non-MPLS RSVP is designed to work with
non-RSVP routers along the path.  In RFC 2205, the detection is in order
to inform downstream nodes.

RFC 3209 makes non-RSVP nodes along the path illegal, and therefore
changes the action when one is detected (PathErr instead of setting
ADSPEC break bits).  It does not, however, change, redefine or restate
the detection algorithm.

-- David