The MPLS WG Archive

[Arumugam R <arumugamr@future.futsoft.com>]

Hi Yuan.
The comments are inlined.

Yuan Gu wrote:

> Hello:
>
> I have some questions about Record Label subobject of Record Route
> Object in rsvp-lsp-tunnel-08.txt(section 4.4) :
>
> 1. What's the purpose of record label?

The purpose of record label is for fast rerouting using bypass tunnels. (
refer swallow-rsvp-bypass-label draft).

>
> 2. Should it be implemented one way (only along Path direction) or both
> way (Path and Resv)?

As mentioned in the draft it can be impemented in only one direction i.e in
Resv direction..

>
> 3. Which label should be put in the RRO, in_label or out_label?

The label being put is the incoming label because this is the label being
allocated by the particular node. The outgoing label might have been pushed
by the upstream node.

>
> 4. In case of both way, which label should be put in the RRO of RESV
> msg, in_label or out_label?
>

I think it is clear, it is not both way. only in Resv path and that too
incoming label only..

>
> Regards!
> Yuan Gu

Regards
Arumugam R

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