Peering across p2p or LAN for RIP

[abidg]

I have to peer two CEs with two other C (internal customer routers over RIPv2 as follows:


C1 C2
| |
| |
CE1---C2 CE2----C1


C1--------C2 : already in place

Peer: CE1 with C1 and C2
Peer: CE2 with C1 and C2

C1 and C2 are multilayer 6500s. CE1 and CE2 are 3750s.

I am just wondering if it would be a good idea to do this peering over p2p links or multiaccess links.

P2P Config: link_1:CE1--C1
link_2:CE1--C2

link_3:CE2--C1
link_4:CE2--C2

Multiaccess Config: net-link_1:CE1---C1/C2
net-link_2:CE2---C1/C2

I dont want to peer CE1 and CE2.


Any comments, pros, cons or etc on this plz.

_______________________________________
Courage does not always roar. Sometimes, it is the quiet voice at the
end of the day saying, "I will try again tomorrow".
-- Anonymous

 

[Cluebird]

Your choice, but there are several options.

First, you can use the neighbor command and passive interfaces to unicast RIP only to specific neighbors. Combine this with router filters to keep routes from the routing table.

Second, VRFs for each customer (VRF lite in this instance looks feasible).

Third, separate RIP processes with filtering and redistribution using route tags and route maps.

Fourth, full blown MPLS VPN with VRFs and route targets.

HTH