and you can use the same IP across different providers? they would need to be on the same subnet... I don't see how its technologically feasible to implement a

and you can use the same IP across different providers? they would need to be on the same subnet... I don't see how its technologically feasible to implement across ISPs. (though strictly speaking possible with several routing protocols, just extremely unlikely) TCP Packet Streams are always directed at an IP, and if that IP changes, a new Stream needs to be established. This will cause a disconnect and its no longer a true failover once that has happened. Applications can be developed to gracefully handle IP changes, but a lot of them aren't.