From: Michel Gaspard (mgaspard@xxxxxxxxx)
Date: Fri Apr 13 2001 - 05:17:11 GMT-3
Hi Ed!
I played around with BGP confed a while ago, and it was working fine in the sam
e config AS100 - AS1060 - AS1060 - AS1010, using OSPF as IGP.
The routes were transmitted.
Could check if the routes of AS100 are in the "sh ip bgp" of R3?
Remember that the next-hop attribute is kept inside the BGP confed (see below)
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_c/1c
prt1/1cbgp.htm#xtocid870237
If R3 doesn't have a valid route to the AS100 BGP router, the route will not be
accepted (put inside the ip route table), but should be present in teh BGP tab
le, w/o the infamous ">"....
As a workaround, you could use "next-hop-self" on all routers, and see if it fi
xes the issue.
Otherwise, we will need more info (config, sh ip bgp on R5 and R3).
Just my 0.02 Euro.
Regards,
Michel
> From nobody@groupstudy.com Fri Apr 13 04:51:34 2001
> From: "Moran, Ed" <morane@telecomsys.com>
> To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
> Subject: Inter-Confederation BGP
> Date: Thu, 12 Apr 2001 22:44:58 -0400
> Sender: nobody@groupstudy.com
> Reply-To: "Moran, Ed" <morane@telecomsys.com>
>
> I have setup 2 BGP Confederations. Mt Confederation ID is 1000 and my
> confederations are 1010 and 1060. R1, R2, and R3 are full-mesh in 1010; R4,
> R5, and R6 are full-mesh in 1060. R1 has an eBGP connection to AS300 and R6
> has an eBGP connection to AS100. The connection between the confederations
> is a serial link between R3 and R5.
>
> Within each confederation, all members receive the routes from the
> approprite AS. For Example, R4 and R5 are receiving the routes from AS100
> via R6. The same for Confederation 1010.
>
> The problem is that the confederations are not propagating routes between
> each other. R5 is not telling R3 about the AS100 routes and R3 is not
> telling R5 about the routes from AS300. I have only a minimal config with no
> route-maps or anything else that would block the routes. Does anyone know
> what is happening and how to make the routes propagate? Thanks in advance!!
>
> E A Moran
> Sr.Network Engineer/Project Manager
> CNE,MCSE,CCDP,CCNP + Voice Access + LAN ATM
> TeleCommunication Systems, Inc.
> Cisco Premiere Certified Partner
> Cisco Wireless LAN Specialist
> Cisco Voice Access Specialist
> 813-831-6353
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