I was hoping to get some advice on the best way to handle the new configuration.
A simplified version of what we have is below.
router1 - internal link subnet 172.16.0.0
router2 - internal link subnet 172.17.0.0
router3 - internal link subnet 172.16.0.0
R2 ---provider1 p2p--- R1 ---provider2 p2p--- R3
R2 to R1 has a static route on both ends that points the appropriate traffic between the two.
ie: r2 > r1 ip route 0.0.0.0 0.0.0.0 interface IP on r1
r1 >r2 ip route 172.17.0.0 0.0.255.255 interface ip on r2
R1 and R3 are just working as a trunked port
Management is changing both provider1 and provider2's connections to elans that connect to all three sites routers.
Which gives me something like a dual ring elan connection. Which they want for redundancy.
What setup would you suggest for the rings. I'm not sure how to approach this. Should I go with an IGP like OSPF?
I attached an image of what it will look like with the elan rings up.