OSPF over MPLS issue

[azdzidy]

Hi,

I’m having problem with one of my customer running OSPF through our MPLS cloud. They claim that they having high latency and certain application cannot run when connected through our MPLS cloud. At first the stability of the network was unstable but we solved this issue due to mismatch MTU configuration. We yet to solve the latency issue. The scenario is like this customer branch A connected to branch B using EIGRP. From branch B connected to our PE using OSPF with GRE tunneling (according to customer this to propagate the EIGRP route). We proved to the customer that between our cloud there’s no problem with latency issue. Extended ping results 10ms between PE to PE. Appreciate if anyone cloud help me on this.

[romccallum]

I dont understand the requirement for the GRE tunnel to be honest with you. On the PE router do you have a tunnel also? The EIGRP route should be redistributed into OSPF and on your PE router under the address family you should be doing the

redistribute ospf xx vrf xx match external internal nssa-external command. This should pass all customer routes between each CE fine. Get the to remove the GRE as this is the most likely cause of latency issues - lets face it the customer CE is in all likely the smallest router in the overall path.