I have a requirement to advertise the same internal route say 192.168.1.0/24 as an example...on two different sites on the interior of my backbone (currently EIGRP).
In this scenario if the route advertised from site A becomes unreachable then I would like site B to begin advertising the route.
When site A comes live I would like halt the advertisement from site B. Looking for fast convergence times.
Is this possible with EIGRP, BGP, track or other means...and if so can someone suggest sample scripts or documentation?