[c-nsp] Dreaded FIB Exception on Sup2

Oliver Dewdney Oliver.Dewdney at LBi.com
Thu Sep 4 06:20:13 EDT 2008


Do you need full routing tables? Jon Lewis emailed a week ago about how to reduce the table by filtering the bgp feeds to get the table to fit. I think that the routing/connectivity should be fine for a hosting provider.

http://jonsblog.lewis.org/

which can be used until you are in a position to upgrade or Cisco come out with a FIB optimization, which will never happen.

How did Cisco come out with so many 720s that the compatibility matrix is so complicated?

Oli

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Rick Kunkel
Sent: 03 September 2008 18:59
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Dreaded FIB Exception on Sup2

Well, I've hit the dreaded error message on my Sup2:

%MLSCEF-SP-7-FIB_EXCEPTION: FIB TCAM exception, Some entries will be
software switched

I've done a lot of reading on this (cisco.com, this list, etc.), with the
conclusion that this supervisor engine is likely just at the end of its
useful lifetime, but I figured I'd double check I wasn't missing anything.

This happened when I started getting a full routing table from a provider
today.  We're connected to one peering point and another aggregation-style
provider, and are in the process of adding a Cogent connection (hold
any tempting comments on that one, please).

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