I would like to ask the community thoughts on the following.
I have two data centers, one up 'Norf, and one down South
Both are isolated in terms of network, but both have public IPs on a dedicated private circuit.
There is no MPLS between the two sites.
I run a hosted PBX service and want to be able to divert traffic from our South platform to the one up 'Norf causing only minimal downtime (as I realise there is no way of having zero downtime).
Suggestions I have come up with include HSRP on a P2P layer 2 link, or DNS failover with automatic monitoring.
I don't have a P2P link between the two locations but want to know if anybody has any other ideas that could work?