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question Fast-Reroute Resv manipulation

  • From: Jean Philippe Vasseur <jvasseur@cisco.com>
  • Date: Thu, 30 May 2002 13:02:27 +0200
  • Cc: <mpls@UU.NET>

Hi,

At 15:48 28/05/2002 +0300, Doug Degan wrote:
>consider this basic FRR  topology - primary protected LSP is configured and
>bypass is ready for use if needed:
>
>[I]---[PLR]----[T]-----[MP]--------[E]
>          \                           /
>           \------------------/
>              BYPASS/DETOUR
>
>
>and the scenario:
>
>1) MP send RESV-MSG to T
>
>2) Link between PLR & T fails
>
>3) T get the RESV-MSG  - will it send RESV_ERR downstream cause the link is
>down?

no.

>* should every router block RESV_ERR messages for protected LSP?

The MP should silently discard it.

JP.



>thanks alot.