From: RSiddappa@xxxxxxxxxx
Date: Tue Feb 12 2002 - 06:07:32 GMT-3
I guess the null 0 route will be added automatically when use the aggregate
address command.
I would suggest to use the option summary-only at the end of the
Aggregate-address command.
then it should solve the problem.
What is the IOS u r using.
R.
-----Original Message-----
From: CHRIS HUGO [mailto:chrishugo@yahoo.com]
Sent: Tuesday, February 12, 2002 2:50 AM
To: Siddappa, Rajeev
Cc: ccielab@groupstudy.com
Subject: RE: aggregate-address in bgp???
Add that route to null 0 on the router that you are performing the
aggregate-address command
ip route 160.0.0.0 240.0.0.0 null 0
Let me know if this helps.
-chris hugo-
RSiddappa@NECBNS.com wrote:
By any chance does R1 has better routes to this aggregate or Aggregated
route.
Then the behavior is absolutely acceptable.
R.
-----Original Message-----
From: Shadi [mailto:ccie@investorsgrp.com]
Sent: Monday, February 11, 2002 12:20 PM
To: ccielab
Subject: aggregate-address in bgp???
Guys,
I have simple scenario on BGP but with a strange behavior!!
I have the below simple diagram which is a small network from a larger and I
am running bgp and ospf in it. I wanted to summarize the loopback interfaces
on R2, I did that and it worked fine, the aggregate route is 160.0.0.0/4,
the
route got updated to R1, and it appears in the bgp table of R1, but after a
while I get that the route got disappeared again and I don't know why, when
I
do debug it says: "no route to 160.0.0.0/4", but the next hop is reachable
and
I can ping it from R1. I don't know why it appears in the R1 bgp table for 1
min and then disappears again.
Any suggestions? Of course bgp sync is off on all Routers.
10.10.10.1 10.10.10.2
R1<--------------------------------------------->R2
BGP AS2 BGP AS3
lo1:160.10.10.1/24
lo2:170.10.10.1/24
lo3:161.10.10.1/24
R2:
router bgp 3
no sync
aggregate-address 160.0.0.0 240.0.0.0 summary-only
redistribute connected
neighbor 10.10.10.1 remote-as 2
R1
router bgp 2
no sync
neighbor 10.10.10.2 remote-as 3
Shadi
This archive was generated by hypermail 2.1.4 : Thu Jun 20 2002 - 13:46:20 GMT-3