From: abdul_rahim@xxxxxxxxxxxxxx
Date: Tue Oct 17 2000 - 16:58:56 GMT-3
Jack
we can always use filter-list and route-maps to the same neighbor in the
same direction together
Thanks
abdul
"Jack Heney" <jheneyccie@hotmail.com>@groupstudy.com on 10/17/2000 12:17:03
PM
Please respond to "Jack Heney" <jheneyccie@hotmail.com>
Sent by: nobody@groupstudy.com
To: ccielab@groupstudy.com
cc:
Subject: BGP filtering
Halabi, pg. 317:
Router bgp 1
neighbor INTERNALMAP peer-group
neighbor INTERNALMAP remote-as 1
neighbor INTERNALMAP route-map INTERNAL out
neighbor INTERNALMAP filter-list 1 out
neighbor INTERNALMAP filter-list 2 in
neighbor 172.16.11.1 peer-group INTERNALMAP
neighbor 172.16.13.1 peer-group INTERNALMAP
My question is this...I had always assumed that you couldn't use both an
outbound filter and an outbound route-map to the same neighbor...I based
that assumption on the fact that the route-map itself could act as a
filter...According to Halabi, however, this is an acceptable configuration,
so which logic is processed first? What if I incorporate an AS-path filter
in an outbound route-map that explicitly permits traffic that was
explicitly
denied by the AS-path list referenced in the filter-list command?
Thanks in advance for any help,
Jack
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