[c-nsp] 6500 series, FIB exception @ dfc

[James Bensley]

On Tue, 14 May 2019 at 14:28, Drew Weaver <drew.weaver at thenap.com> wrote:
>
> Quick related question.
>
> Can you not reduce the number of MPLS routes on this platform?
>
> User configured :-
> ---------------
>  IPv4                - 768k
>  MPLS                - 1k
>  IPv6 + IP multicast - 120k (default)
>
> Upon reboot :-
> -----------
>  IPv4                - 768k
>  MPLS                - 16k (default)
>  IPv6 + IP multicast - 120k (default)
>
> Notice that it appears to want to still allocate 16K for MPLS even though it's configured to 1k.

Hi Drew,

What config did you appply to generate that show command output?

You can't explicitly lower the MPLS allocation size (if memory serves
me), and instead you need to increase the size of something else to
implicitly remove allocated TCAM space from MPLS.

See this example output from a 7600:
https://null.53bits.co.uk/index.php?page=6500-7600-tcam-fib-allocation

Cheers,
James.