01-22-2008 11:50 PM
Hi.
I have MP-BGP/MPLS in my network and different customers vpns. For example, i'd like to put traffic of certain VRF to certain MPLS TE tunnel. I think it is possible to use PBR or static routing, but in this case i have to do a lot of manual configuration.
Is there more dynamic way?
01-23-2008 03:02 AM
Hi
U can have one more loopback in PE router and make that extra loopback as next-hop in MP-BGP for that specific VRF. Then build a TE tunnel to the extra loopback so that only specific VRF trafic will flow via TE..
int loopback 100
description extra loopback for specfic vrf
ip add a.b.c.d 255.255.255.255
ip vrf forwarding test
rd abc
route-target export abc
route-target import abc
bgp next-hop loopback 100 -- This will make loopback 100 as the nexthop for vrf test. For rest of the vrf next-hop would be loopback 0.
int Tunnel 1
tunnel mpls traffic-eng
tunnel destination a.b.c.d
HTH...
01-23-2008 05:36 AM
Hi,
Just a little addition to the config in the previous post. The MPLS TE tunnel destination MUST be the IGP (OSPF or ISIS) TE router ID. Another "IP address" will not work, i.e. the tunnel will not come up.
So the modification required is:
interface tunnel1
ip unnumbered loopback0
tunnel mode mpls traffic-eng
mpls ip
...
ip route a.b.c.d 255.255.255.255 tunnel1
Hope this helps! Please use the rating system.
Regards, Martin
01-24-2008 03:45 AM
Yes, it works. Thanks a lot, guys!
02-08-2008 01:58 AM
Hi Pros,
I would like to know are there any other ways apart from the above mentioned to divert a specific VRF or L2MPLS traffic via TE tunnel.
Thanks in advance..
02-08-2008 02:12 AM
There is no other way I know of for elegantly routing VRF to a specific TE tunnel...However, in a L2VPN pseudowire, under the pseudowire-class configuration you can specify the next-hop interface which can be a TE tunnel.
Let me know if this clarifies.
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