I want to span a single subnet across two physically separated sites.
We currently use Metro Ethernet and BGP for our routing protocol. Our 11 branch locations are all on separate subnets which makes routing via BGP very easy. What I want to do now is to extend our corporate LAN to our Disaster Recovery site, so that we can perform live migrations of our VMWare servers back and forth without having to change IP addresses.
I can't seem to find information on how to configure a logical LAN that spans two sites.
We use Adtran 1335s
Thanks for any help you can provide!