where to find IP Prefix-list information
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05-30-2007 11:35 AM - edited 03-03-2019 05:13 PM
Hi, I'm trying to learn ip prefix-lists, but am getting stuck. Does anyone know of any good documents that go into details about it?
I searched on Cisco's web site and didn't find any.
Thanks, Lisa G
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05-30-2007 11:56 AM
Hi,
The advantages of using prefix lists over access-lists are as follows:
. Significant performance improvement in loading and route lookup of large lists (less CPU intensive than access-list).
. They allow editing of the lists so that additional lines of code can be inserted anywhere in the list.
. More user friendly CLI. The CLI for using access lists to filter BGP updates is difficult to understand and use because it uses the packet filtering format (ACL matches on the network address only and doesn't look on the subnet mask - packet filtering format rather than a network and mask format).
. Greater flexibility.
This is the best that i can get:
Please check it out and do come back if you have further questions.
HTH, please do rate all helpful replies,
Mohammed Mahmoud.
