From: RSiddappa@xxxxxxxxxx
Date: Tue Feb 12 2002 - 13:25:06 GMT-3
Shadi,
Can u post the routing table of R1.
R.
-----Original Message-----
From: Shadi [mailto:ccie@investorsgrp.com]
Sent: Tuesday, February 12, 2002 8:49 AM
To: Siddappa, Rajeev; ccielab
Subject: Re: aggregate-address in bgp???
I did both the summary-only and the ip route null0 with same result,even I
removed the ip route null0 with the same result.
I am using 12.0(4)
----- Original Message -----
From: <RSiddappa@NECBNS.com>
To: <chrishugo@yahoo.com>
Cc: <ccielab@groupstudy.com>
Sent: Tuesday, February 12, 2002 11:07 AM
Subject: RE: aggregate-address in bgp???
> 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