Thanks for quick reply. I meant, carrier will provide us what they call LAN-2-LAN in Brazil, not sure of other market names. I will have both switchports direct on their UTP cables, so I can use switch ports as L2 or L3. If L2, we could partition STP instances using some of its variations. But I would not want to have STP going back and forth in the MAN link. I don't use BGP today at these links but we are considering doing that.

Thanks.

Hi

If its a L2 link then why are you worried so much. I believe that both the the links will terminate on ethernet.

Why make switchports?

Make them router ports, enable EIGRP, config Policy base routing (PBR) for traffic and that all....

Here is sample config to make switchports to routerports:

Site A

int f0/0

description 100M link

no switchport

ip add 10.0.0.1 255.255.255.252

int f0/1

dec 45M link

no switchport

ip add 10.0.0.5 255.255.255.252

int f0/2

dec ethernet

10.10.10.1 255.255.255.0

router eigrp 1

net 10.0.0.0

Site B

int f0/0

description 100M link

no switchport

ip add 10.0.0.2 255.255.255.252

int f0/1

dec 45M link

no switchport

ip add 10.0.0.6 255.255.255.252

int f0/2

dec ethernet

10.10.20.1 255.255.255.0

router eigrp 1

net 10.0.0.0 255.0.0.0

Below is a link for configuring PBR

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fqos_c/fqcprt1/qcfpbr.htm

This scenerio is analogus of having 2 serial links and enabling/shaping traffic between them.

I will update the post in case I find some similar examples.

Hope that will help.

Regards

JD

Thanks again. This looks much simpler than what I thought first. It will keep configuration cleaner to maintain.

Regards.

Just a quick question. When one of the links is down, would PBR with EIGRP converge to re-route traffic?

Thanks.