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RFC3209 Section 4.1.2

  • From: "Hong Liao" <hliao@telcordia.com>
  • Date: Thu, 25 Jul 2002 11:18:24 -0400
  • X-MIMETrack: Serialize by Router on notes640/Telcordia(Release 5.0.6a |January 17, 2001) at07/25/2002 11:18:27 AM

Hi,

In RFC3209 Section 4.21.2 non-support of the label object.

4.1.2. Non-support of the Label Object

   Under normal circumstances, a node should never receive a LABEL
   object in a Resv message unless it had included a LABEL_REQUEST
   object in the corresponding Path message.  However, an RSVP router
   that does not recognize the LABEL object sends a ResvErr with the
   error code "Unknown object class" toward the receiver.  This causes
   the reservation to fail.

For example,

A  -------LSR--------B

If the A sent out a Path msg without the LRO, LSR will forward this path
msg to B, then if B sent a Resv msg with a Label object, will the LSR send
the Resverr msg with the error code "Unknown object class" toward B?

I do think so unless LSR is non-support the LABEL object.

Please let me know if it is correct.

Thanks in an advance.

Julia