bgp auto summary and aggregrate address

Unanswered Question
Apr 17th, 2007

hello guys.. what is the difference auto summary and aggreate address? as i know we can achive summarization with the use of routemap out direction by also create static route pointing to null0.

I have this problem too.
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Harold Ritter Tue, 04/17/2007 - 18:34


auto-summary allows for summarization on major net boundaries when redistributing in BGP and when using network statements to originate prefixes in BGP.

On the other hand, the aggregate-address allows for sumamrization on any boundary from prefixes already existing in the BGP local-rib.

Note that auto-summary is now disabled by default in most IOS versions as it is rarely used.

Hope this helps,


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