[152678] in North American Network Operators' Group
L3VPN MPLS - Internal BGP between CE - PE
daemon@ATHENA.MIT.EDU (Javor Kliachev)
Tue May 8 03:00:43 2012
Date: Tue, 08 May 2012 09:55:47 +0300
From: Javor Kliachev <jkliachev@neterra.net>
To: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Dear Members,
We are ISP which use the same autonomous system to hold External BGP
sessions
and for implementing L3VPN MPLS ( as internal BGP )
We have a internal office router that receives a "default route" via IBGP
from our border router.
I'll try to briefly explain the problem:
This internal router named (CE) keeps IBGP session with PE router in VRF
"def".
CE ( GlobalTable ) - PE ( vrf "DEF" )
The aim is "default route" IBGP received from the the ISP provider to be
redistributed to PE in all vrf "DEF"
After establishing the session we observe that actualy that "default
route" is propagating successful
in whole vrf "DEF" but MPLS does not set label of this route and the
traffic is blackholed.
When using another protocol as OSPF and EIGRP everything is OK.
We opened case in Cisco TAC and they explaned that IOS official is not
support IBGP between PE and CE. Only EBGP.
I would like to know if any of you had similar problem and if there is
any workaround in Cisco platform.
I see for example Juniper has special commands for resolving this problem.
Thanks in advance!
Best~
Javor Kliachev
