questions on draft-vasseur-ccamp-inter-area-as-te-00.txt

[Kullberg Alan-G19424 <alan.kullberg@motorola.com>]

Title: Message

Hi JP & Arthi,

I have a couple of questions on draft-vasseur-ccamp-inter-area-as-te-00.txt.

 

1. How are the following 2 flags related:

    0x02: LSP stitching required

    0x04: LSP stitching desired

From my reading of the draft, they may be used for the same purpose, and therefor 1 of them should be removed?

 

 

2. Regarding LSP Stitching:

How does the egress of the stitch segment associate the inter-AS LSP and the LSP segment?

To clarify, from the example on page 19:

   "Eventually as the Resv message for the inter-AS TE LSP
    traverses back from ASBR9 to ASBR7 and reaches ASBR7, ASBR7 will
    remember to swap the LSP segment label with the label received for the
    inter-AS LSP from ASBR9. Also, ASBR7 will itself allocate a NULL label
    in the Resv message for the inter-AS TE LSP and sends the Resv message
    to ASBR4."

What objects in the Path or Resv messages does ASBR7 use to associate the inter-AS LSP with the LSP segment?

 

Thanks,

Alan