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Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
OL-27852-01
Chapter Unicast Routing Commands
track interface (VRRP)
track interface (VRRP)
To track the priority for a virtual router based on an interface, use the track interface command. To
disable priority tracking for a virtual router, use the no form of this command.
track interface {ethernet slot/port | port-channel number[.sub_if_number]} priority value
no track interface {ethernet slot/port | port-channel number[.sub_if_number]} priority value
Syntax Description
Command Default Disabled
Command Modes VRRP configuration mode
Command History
Usage Guidelines Use this command to change the priority of the virtual router based on the state of another interface in
the switch. When the tracked interface is down, the priority reverts to the priority value for the virtual
router. When the tracked interface is up, the priority of the virtual router is restored to the interface state
tracking value.
Note Interface state tracking will not be operational unless you enable preemption on the interface.
This command requires the LAN Base Services license.
Examples This example shows how to enable interface state tracking for a virtual router:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# no switchport
switch(config-if)# vrrp 250
switch(config-if-vrrp)# track interface ethernet 2/2 priority 2
switch(config-if-vrrp)#
ethernet slot/port Specifies the virtual router interface for which to track the priority. The slot
number is from 1 to 255, and the port number is from 1 to 128.
port-channel number Specifies the port-channel group for which to track priority. The range is
from 1 to 4096.
sub_if-number (Optional) Subinterface number. The range is from 1 to 4093.
priority value Specifies the interface priority for a virtual router. The range of values is
from 1 to 254. If this router is the owner of the IP addresses, the value is
automatically set to 254.
Release Modification
5.0(3)A1(1) This command was introduced.
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