From: Packet Man (ccie2b@hotmail.com)
Date: Tue Mar 30 2004 - 18:00:01 GMT-3
Glad to help
>From: "David Hurtado" <dei2viccie@hotmail.com>
>Reply-To: "David Hurtado" <dei2viccie@hotmail.com>
>To: ccielab@groupstudy.com
>Subject: RE: BGP new feature
>Date: Tue, 30 Mar 2004 21:29:10 +0200
>
>Thank you very much for the comprehensive explanation. Cisco should hire
>you to write the documents. Everything would be easier.
>
>Thank you again Super Packet Man
>
>
>
>
>>From: "Packet Man" <ccie2b@hotmail.com>
>>To: dei2viccie@hotmail.com, ccielab@groupstudy.com
>>Subject: RE: BGP new feature
>>Date: Tue, 30 Mar 2004 13:49:44 -0500
>>
>>Hey David,
>>
>>Actually, this is one of the easier BGP features to understand. A simple
>>example will make this clear.
>>
>>Assume you have 2 bgp routers, r1 and r2, that are ebgp peering.
>>
>>R1 has a filter configured on it that drops a bunch of routes which R2 is
>>sending it. In other words, R2 uses up bandwidth sending routes to R1 it
>>doesn't want.
>>
>>Now, suppose there were a way for R1 to tell R2 not to send those routes
>>in the first place because once R1 gets them, it's going to drop them
>>anyway. That would be pretty cool, don't you think?
>>
>>Well, that's exactly what the ORF feature does. Now, for this to work,
>>both routers must be of a certain IOS release - which release, I don't
>>know - details like this I can never remember. However, assuming both
>>routers are of a high enough release, when the BGP peering relationship is
>>setup, one part includes a capabilities exchange. And, I believe that
>>during this cap's exchange, R1 would tell R2 about the filter it (R2)
>>should use when sending R1 routes.
>>
>>Now, R2 won't waste bandwidth sending R1 rotes it doesn't want.
>>
>>OK, so now you probably want to know how to configure this feature.
>>Off-hand, I can't tell you - again, I have a hard time remembering stuff
>>like that. However, if you look in the config guide for 12.3 under IP
>>configuration, you'll find a link to new features.
>>
>>check out
>>http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122t/122t4/ftbgporf.htm
>>
>>HTH, pm
>>
>>
>>>From: "David Hurtado" <dei2viccie@hotmail.com>
>>>Reply-To: "David Hurtado" <dei2viccie@hotmail.com>
>>>To: ccielab@groupstudy.com
>>>Subject: BGP new feature
>>>Date: Tue, 30 Mar 2004 19:32:57 +0200
>>>
>>>Hello everybody,
>>>
>>>I'm trying to understand the BGP new feature: BGP Prefix-Based Outbound
>>>Route Filtering, but the Doc Cd is not clear.
>>>
>>>Could somebody tell me some link or archive where this feature is better
>>>explained?
>>>
>>>Thanks for the help
>>>
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>>
>
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