BGP aggregation

From: Muthu (muthumon@xxxxxxx)
Date: Mon Oct 02 2000 - 21:30:00 GMT-3

   
Hi team,

I have a scenario like this

R1(AS-100 )--------------R2(AS-300 )------------------------R3(AS-400)
                        .
                        .
                        .
                        .
                        .
                        R4(500)

R1 in AS 100
R3 in AS 400
R4 in AS 500
R2 in AS 300

All these three routers have EBGP peering with R2 which is in AS 300
R4 is advertising two routes 171.1.2.0 and 171.1.3.0
The requirement is R1 should see these routes as summarised form ie :
171.1.0.0
whereas R3 should see both the routes without summarisation.

if we use " bgp aggregate address 171.1.0.0 mask 255.255.0.0 summary-only" in
r2, both R1 and R3 get aggregate routes.
So that is not the correct way. It looks like aggregate address to specified
with respect to neighbor. But I am unable to use
above command to a specific neighbor.

Any help will be greatly appreciated

Thanks
Muthu

This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 08:25:23 GMT-3