If I apply access-lists to interfaces on a 3600 router, am I essentially turning off fast switching off for those interfaces as all packets have to be checked for matches or do access-list make no difference at all to fast switching. Also, how does priority queuing affect fast switching as it rearranges the order of packets.
If im right, it doesn't affect fast switching at all. I know ACLs cannot be used with CEF switching unless in conjunction with a policy. The good thing is it would not instantly divert to process switching, it would drop to each previous switching successor in terms of speed. Not all packets would be process-switched anyway because the "stream characteristics", e.g. src/dest/port, etc. would be cached preventing the need for every packet from each stream being compared to the ACL.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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