Currently with my servers, they all or almost all have 2 nics with one in use. Each NIC is is of course connected to a single switch.
What do I need to do to make this redundant in that both NICs are used and connected to different switches, but will have one IP with automatic failover.
Most of the servers are Dell Poweredge servers running either Windows Server 2003 or CentOS/Redhat 5ish.
I have never set this up before, but I am guessing the topic is a bit beyond one serverfault question, so I am just looking for the keywords (like NIC bonding?), links, book recommendations on this topic, and gotchas to watch out for.