Backup internet connection
Does anyone run a secondary backup internet connection?
If so - how do you do it? and what do you use?
I've currently got a 20Mbps fibre line and am looking to upgrade this to 50Mbps - as part of this project I'm also considering getting a DSL connection that can be used as a failover for email traffic and whatnot as the fibre is a single point-of-failure.
Could I just register the static IP of the DSL connection as a second MX record for my domain (with a different priority) or should I do something much more snazzy and clever? (I think a Citrix Netscaler might be a clever way to dynamically re-point things).
Ideas or just general ramblings would be very much welcome.