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LSP failure detection

  • From: Chris Flores <chris.flores@onfiber.com>
  • Date: Wed, 8 Nov 2000 13:31:16 -0600 

---Original Message-----
From: David Charlap [mailto:david.charlap@marconi.com]
Sent: Wednesday, November 08, 2000 12:18 PM
To: mpls@UU.NET
Subject: Re: LSP failure detection

--<snip>
As for 17.5ms, where do you get that number?  I didn't see it in the
draft anywhere.  I found a 5ms interval, but that's not a requirement -
it's a recommended default value for a user-configurable parameter.
--<snip>

from section 5.3 of 'draft-ietf-mpls-rsvp-lsp-tunnel-07.txt', the default
interval for periodically generating Hello messages is 5ms. Furthermore, a
node must presume that it cannot communicate with another neighbor if it has
not received 3.5 instances of a Request or ACK. Thus, 5ms * 3.5 = 17.5ms.

Best regards.

Chris