From: marvin greenlee (marvin@ccbootcamp.com)
Date: Tue May 31 2005 - 14:35:24 GMT-3
Depending on your particular configuration, and who you are sending the
routes to, you could possibly use an as-path prepend.
For example, if you are in AS 1 and you don't want the routes to show up in
AS 2, you could prepend 2 to the as path. When AS 2 receives the route
update, it will drop the route because it sees its own AS in the path list.
I have a few practice labs with sections like this.
Note: This is NOT recommended for a production environment.
Marvin Greenlee, CCIE#12237, CCSI# 30483
Network Learning Inc
marvin@ccbootcamp.com
www.ccbootcamp.com (Cisco Training)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
sumit.kumar@comcast.net
Sent: Tuesday, May 31, 2005 10:19 AM
To: ccielab@groupstudy.com
Subject: BGP - Any other way of doing this [bcc][faked-from]
Importance: Low
You create an (summary) aggregate address in BGP and in order to suppress
the aggregated routes being propagated the following techniques can be
used;
1) keyword summary-only
2) suppress-map
3) Community (no-advertise for aggregated routes)
4) filter the aggregated routes via route-map/prefixlist/distribute list
Any other method any BGP guru can think of ?
thanks
Sumit
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