OSPF between Multiple MPLS Service Providers

[arief.muslim]

Hi,

One of my customer currently connects to three different MPLS providers. All the SP's PEs are already configured with the customer's subnets, but the CE is configured to point only to one of the PE as the default route. If the link to this SP is down, the customer need to manually change the default route to point to another SP.

How can I enable dynamic routing, e.g. OSPF, to all the of service providers? What is required from the service providers to enable this?

Thanks for all the advice.

rgds,

Arief

[olorunloba]

A better understanding of the full topology, such as all the branches that this CE is talking to, and via which of the SPs they are reachable via would help.

I do not see much problem, more especiall, if you take the pains to configure the routing protocol on the CE to only advertise the local subnet and not other subnets learnt by it.

[rais.ahmad]

Go for BGP with each SP. You will get much greater control on CE. This should not be a problem at all. Just ask the SPs to talk BGP.

Hope this helps.