ACL's and CoPP

[Zxanthar98]

I am reading the ENARSI chapter on CoPP, and it had just occurred to me that if we are protecting the CPU from unnecessary burden/ attacks, where are the ACL's processed in the router? Are the processed in CEF at the data plane? I cant seem to remember where the matching/ processing occurs and google wont help. Thanks everyone!

[Mohammed al Baqari]

Hi,

These are checked by router processor conceptually because the packets are
destined to device itself. Now the router processor varies depending on
hardware e.g. 2900/3900 are different from ISR4K and ASR and these are
different from 7600, etc.

So you need to understand the concept and the actual component varies
depending on the platform. You can find more details on Cisco Live slides.

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