VRF on CE question

kevin.hu · ‎06-02-2007

I plan to run multiple VRFs on the layer 3 switch (3750) at our spokes.

However, I don't want to expand my MPLS cloud from the hub all the way to the spoke routers (2811) because spoke-hub WAN links are satallite links and these links are not very stable. I don't want to bring this instablity to my MPLS core.

So the question is, how do I transport multiple VRFs to the MPLS cloud at the core without expand the MPLS cloud all the way down to the spoke?

gmarogi · ‎06-07-2007

You will have to expand the mpls cloud down to the spokes

ariela · ‎06-08-2007

Hi,

if the question is "how could I do traffic separation when I couldn't expand my MPLS L3VPN", the answer is:

1. L2 solution = VLAN

2. L3 solution = multi-VRF, or VRF light

With satellite links we normally leave the traffic from spokes in the global route, then on Aggregation point we insert the traffic in to the MPLS cloud with a "VRF selection" based on source IP or PBR.

more infos:

http://www.cisco.com/en/US/products/sw/iosswrel/ps5012/products_feature_guide09186a0080699424.html

http://www.cisco.com/en/US/products/sw/iosswrel/ps1838/products_feature_guide09186a0080296409.html

HTH

Andrea