[c-nsp] Cisco3506 -- Hardware CEF entry usage is at 95%

[Rinse Kloek]

Hi,

Looks like the CEF table is getting filled up. You can change the CEF 
table size for a specific routing protocol. For example:
The following will change the IPv6 routing table to 128k entries and the 
mpls table to 64k entries. The multicast table will be 8k.

mls cef maximum-routes ipv6 128
mls cef maximum-routes mpls 64
mls cef maximum-routes ip-multicast 8

You need the reload the whole box to commit this change.

This will give you the following table size:

#show mls cef maximum-routes
FIB TCAM maximum routes :
=======================
Current :-
-------
  IPv4                - 688k (default)
  MPLS                - 64k
  IPv6                - 128k
  IP Multicast        - 8k

regards,
Rinse Kloek

Ali Sumsam wrote on 1-4-2014 7:18:
> Hi,
>
> I am receiving following logs on my Cisco 6503. SUP is 720-3BXL.
>
> %MLSCEF-SP-4-FIB_EXCEPTION_THRESHOLD: Hardware CEF entry usage is at 95%
> capacity for IPv4 unicast protocol.
>
>
> #show ip cef summary
> IPv4 CEF is enabled for distributed and running
> VRF base:
>   498291 prefixes (498254/37 fwd/non-fwd)
>   Default network 0.0.0.0/0
>   Table id 0
>   Database epoch:        4 (498291 entries at this epoch)
>
>
>
>
> #show mls cef maximum-routes
> FIB TCAM maximum routes :
> =======================
> Current :-
> -------
>   IPv4 + MPLS         - 512k (default)
>   IPv6 + IP Multicast - 256k (default)
>
>
> Plus I have got 4 transit links on this switch, means complete BGP feed
> from four providers.
>
> Any suggestions to fix this problem?
>
>
>
> Regards,
> *Ali Sumsam *
> *Network Engineer - Level 3*
> eintellego Pty Ltd
> ali at eintellego.net ; www.eintellego.net
>
> Phone: 1300 753 383 ; Fax: (+612) 8572 9954
>
> Cell +61 (0)410 603 531
>
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>
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