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Are RSVP-TE messages labeled?

  • From: "Alexander Attsik" <atcik@lmail.loniis.ru>
  • Date: Tue, 13 Apr 2004 14:51:29 +0400

Another question about MPLS-TE.

Are IP-packets, carrying RSVP (TE) messages (e.g. Path, Resv), sent labeled in MPLS-TE domain?

Path message with ERO object could be sent with label = 1 (RouterAlert)  forcing neighbour LSR to examine ERO. Analogously it is possible to send Path without a label, but only with IP-header with  Router Alert Option.

Resv's destination address is next hop, is there a reason to label this message for such transmission? On the other hand use of labeled RSVP-TE messages make message transmission unified all over MPLS domain. (Except for LDP and IGP, I suppose).

I'll be very grateful for your help.

                                                                                                    Alexander Attsik