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8.5

Trouble using MPLS tag on OSPF topology

Asked by Waycom in Network Design & Methodology, Network Routers, Miscellaneous Networking

Tags: MPLS OSPF VRF tag Cisco 6509

Hi,

I have an issue running MPLS on an OSPF topology made of Cisco 6509 / Sup32.
I have 2 routers 6509, linked with a gigabits fiber set up as a trunk with few vlan passing through.
I also have on RouterA and RouterB few VRFs.

I want those VRF to exchange their routes between themself using the OSPF already set up between the two devices.

I have added the "tag-switching ip" on the layer2 fiber interface on both side of the link. I also set it up on the layer 3 vlan interface on both side.

OSPF is running on both routers and everything is ok for the standart routing table (the global one), but it does not seems to work for the VRF.

I guess the problem comes from the link between the 2 routers which is not a full "MPLS link". The fact that the link is a trunk divided into vlan makes the MPLS communication down ?

Any idea ?

Thanks a lot for your answer.
 
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Zones: Network Design & Methodology, Network Routers, Miscellaneous Networking
Tags: MPLS OSPF VRF tag Cisco 6509
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Solution Provided By: Otto_N
Participating Experts: 2
Solution Grade: A
 
[+][-]11/06/09 05:21 AM, ID: 25758804Expert Comment

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