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Cell Relay Retreat>MPLS WG Archive>month:2002-May> msg00188



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question Fast-Reroute Resv manipulation

  • From: "Doug Degan" <doug_degan@hotmail.com>
  • Date: Tue, 28 May 2002 15:48:14 +0300
  • X-OriginalArrivalTime: 28 May 2002 12:48:18.0143 (UTC) FILETIME=[F0C026F0:01C20645]
  • X-Originating-IP: [212.199.233.65]

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?

* should every router block RESV_ERR messages for protected LSP?



thanks alot.