Users Guide

Table Of Contents
Layer 3 Routing Commands 1943
console(config)#fhrp version vrrp v3
console(config)#interface gi1/0/1
console(config-if-Gi1/0/1)#vrrp group 1 address-family ipv4
console(config-if-vrrp)# address 101.1.0.10 primary
console(config-if-vrrp)#no shutdown
track interface
Use this command to configure tracking of an IP interface for the device
within a Virtual Router Redundancy Protocol version 3 (VRRPv3) group. To
disable interface tracking, use the no form of the command.
Syntax
track interface vlan
vlan-id
[bfdneighbor
ip-address
] [decrement
number
]
no track interface vlan
vlan-id
[bfdneighbor
ip-address
] [decrement
number
]
vlan-id
—VLAN ID of the VLAN interface.
ip-address — The IPv4 or IPv6 address of a neighbor to be tracked for
reachability using a BFD session.
number
—(Optional) Amount by which the priority is decremented.
Default Configuration
Tracking is not enabled by default.
Command Mode
VRRPv3 Group Configuration mode
User Guidelines
Once IP interface tracking is configured, the VRRPv3 feature receives
notifications when the IP interface changes state. The decrement option
decreases the priority of the switch within a VRRPv3 group by the specified
value when a route becomes unavailable.
Use the bfdneighbor option to track the reachability to the uplink next hop
address. If BFD tracking is enabled, a BFD session is created with the BFD
destination IP using the configured IP address. VRRPv3 receives notification
when the BFD session state changes. The decrement option can be used to