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Cell Relay Retreat>MPLS WG Archive>month:2000-Oct> msg00372



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LSP failure detection

  • From: "Charles Smith" <chasmith9@hotmail.com>
  • Date: Tue, 24 Oct 2000 01:09:53 GMT
  • X-OriginalArrivalTime: 24 Oct 2000 01:09:53.0087 (UTC) FILETIME=[1D634CF0:01C03D57]
  • X-Originating-IP: [64.217.73.116]

MPLS list:

Can someone please explain the mechanisms involved to detect a node or link 
failure within a particular LSP? How can MPLS as a technology guarantee < 1 
second LSP failure restoration (contrast to SONET)? I need to understand 
exactly how a failure is detected, how the backup path is activated or how 
fast re-route directs the LSP around the link or node failure.

I am just a marketing guy who has read the drafts and still needs the 
engineers to explain the concepts :-)

Cheers.

Chas
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