Cisco IOS XE Release 3.3SE
Tracking Support feature separates the tracking mechanism from HSRP and creates
a separate standalone tracking process that can be used by other Cisco IOS
processes as well as HSRP. This feature allows tracking of other objects in
addition to the interface line-protocol state.
commands were introduced or modified by this feature:
track ip route,
In Cisco IOS XE Release 3.3SE, this feature is supported on
Cisco Catalyst 3850 Series Switches.