We are currently installing our second Metro link that connects both of our main data centers together.
One of the design requirements calls for fast convergence, in the 1-2 minutes range. More importantly we would like to have some sort of defense against brown outs and have look at OER.
I understand that OER is more of a WAN (Internet) technology and after investigation have deemed it not feesible for this design. With this being said, would I be better off relying on EIGRP and maintaining a sound QoS policy? Are there any tricks out there that would provide a faster convergence, or is this a case of keeping it simple?