An user may define failover events in a network device by customizing the
network device's response to a failure on the network. Specifically, an
user may instruct the network device to activate or deactivate one or
more interfaces, or undergo any number of additional communications, upon
a perceived network failure or critical interface failure. This enables
the network device to initiate or terminate connectivity with one or more
network devices, as well as optionally performing failover to a standby
network device, to enable the network device to more smoothly handle
failover procedures and transition traffic to the network device that
will be responsible for communication after failover has been effected.