[c-nsp] 6500/BGP/full route tables [even more] confusing...

Jeff Kell jeff-kell at utc.edu
Mon Mar 28 11:38:05 EDT 2011


On 3/26/2011 3:27 PM, Tim Stevenson wrote:
> Hi Jeff,
>
> Removing the DFC from a 65xx card & letting the PFC do the work is HIGHLY preferable
> to letting traffic punt for your shortest mask prefixes, which are the ones that won't
> get into the h/w if you blow out the FIB TCAM.

Follow-up summary... kudos to Tim for the clear list of options.  I have taken custody
of the problem daughtercard away from the GBIC blade and all is well...  $0 budget
upgrade :)

> Router#show platform hardware capacity system
> System Resources
>   *PFC operating mode: PFC3CXL*
>   Supervisor redundancy mode: administratively sso, operationally sso
>   Switching resources: Module   Part number               Series      CEF mode
>                        3        WS-X6516-GBIC             CEF256           CEF
>                        5        VS-S720-10G           supervisor           CEF
>                        6        VS-S720-10G           supervisor           CEF
> Router#show platform hardware capacity pfc
> L2 Forwarding Resources
>            MAC Table usage:   Module  Collisions  Total       Used       %Used
>                               5                0  98304          3          1%
>                               6                0  98304          4          1%
>
>              VPN CAM usage:                       Total       Used       %Used
>                                                     512          0          0%
> *L3 Forwarding Resources
>              FIB TCAM usage:                     Total        Used       %Used
>                   72 bits (IPv4, MPLS, EoM)     524288          25          1%
>                  144 bits (IP mcast, IPv6)      262144           8          1%*
>
>                      detail:      Protocol                    Used       %Used
>                                   IPv4                          25          1%
>                                   MPLS                           0          0%
>                                   EoM                            0          0%
>
>                                   IPv6                           1          1%
>                                   IPv4 mcast                     4          1%
>                                   IPv6 mcast                     3          1%
>
>             Adjacency usage:                     Total        Used       %Used
>                                                1048576         167          1%

Jeff


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