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Cat 3550 : show access-lists hardware counters

Hi,

The output of the "show access-lists hardware counters" is the following.

What is the meaning of the "Bridge and Route in CPU" counter?

Is it that hardware capacity of the 3550 is not used, and everything is do by CPU?

Thanks for your help.

#show access-lists hardware counters

Input Drops: 0 matches (0 bytes)

Output Drops: 0 matches (0 bytes)

Input Forwarded: 7 matches (1137 bytes)

Output Forwarded: 0 matches (0 bytes)

Input Bridge Only: 0 matches (0 bytes)

Bridge and Route in CPU: 9281 matches (773742 bytes)

Route in CPU: 0 matches (0 bytes)

1 REPLY

Re: Cat 3550 : show access-lists hardware counters

We have one of them running as well. It's been up for a few weeks now and the counters look like this:

#show access-lists hardware counters

Input Drops: 0 matches (0 bytes)

Output Drops: 0 matches (0 bytes)

Input Forwarded: 537043429 matches (173616478925 bytes)

Output Forwarded: 32591924 matches (4153329096 bytes)

Input Bridge Only: 0 matches (0 bytes)

Bridge and Route in CPU: 0 matches (0 bytes)

Route in CPU: 1084638 matches (69506438 bytes)

If I remember well, the CPU is involved in the initial flow-setup. After the setup, the hardware cache takes over. The numbers on the lines including the CPU should therefore be lower than input / output forwarded. This prooves it does L3 forwarding through the hardware cache.

Regards,

Leo

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