The MPLS-OPS Archive

["Gopal@Yahoo" <gnaganab@yahoo.com>]

I think pathtear/resvtear msgs shd be triggered at the
point of failure, which wd help tear down the LSp
without waiting for rsvp soft state time out.

Rsvp2205:
2.4 Teardown

      RSVP "teardown" messages remove path or
reservati
:
:
:
A PathTear
      (ResvTear) message may be conceptualized as a
reversed-sense Path
      message (Resv message, respectively).

      A teardown request may be initiated either by an
application in an
      end system (sender or receiver), or by a router
as the result of
      state timeout or service preemption. 

<end>

Once the LSP is down the Egress will setup the new LSP
as per its config.

Rgds
gopal

--- Ali Labed <labed@nortelnetworks.com> wrote:
> 
> I am trying to figure out the time needed to restore
> an LSP in
> end-to-end LSP recovery.
> when a failure occurs, the node upstream of that
> failure detects it
> after no reception of  3  RSVP-TE Hello messages.
> Then, that LSR send a
> ResvTear towards the Ingress.
> Does anybody knows about a study on the
> quantification of that
> notification time.
> 
> Thank you.
> Labed
> 
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