does VRRP track interfaces or not

aueddonline

I have these two statements, this first from a config doc off cisco docs and the second from the cert guide, wondered how they fit together?

1st
Configuring VRRP Interface State Tracking
Interface state tracking changes the priority of the virtual router based on the state of another interface in the device. When the tracked interface goes down or the IP address is removed, Cisco NX-OS assigns the tracking priority value to the virtual router. When the tracked interface comes up and an IP address is configured on this interface, Cisco NX-OS restores the configured priority to the virtual router

Note For interface state tracking to function, you must enable preemption on the interface.

2nd

VRRP has no mechanism for tracking interfaces to allow more capable routers to take over the mast role.

networker050184

VRRP doesn't have a built in track feature like HSRP, but it can use the IOS track feature which behaves pretty much the same way, but takes some additional configuration. The configuration would be something like bellow.

track 1 interface FastEthernet0 line-protocol
!
interface Vlan2
 ip address 1.1.1.2 255.255.255.0
 vrrp 1 ip 1.1.1.1
 vrrp 1 track 1 decrement 50