Cisco Nexus 7000 Series - Configuring VRRP Interface State Tracking

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20-17
Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Chapter 20 Configuring VRRP
Configuring VRRP
DETAILED STEPS
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 (see
the“Configuring VRRP Priority” section on page 20-9).
Note For interface state tracking to function, you must enable preemption on the interface.
Command Purpose
Step 1
config t
Example:
switch# config t
switch(config)#
Enters configuration mode.
Step 2
interface interface-type slot/port
Example:
switch(config)# interface ethernet
2/1
switch(config-if)#
Enters interface configuration mode.
Step 3
vrrp number
Example:
switch(config-if)# vrrp 250
switch(config-if-vrrp)#
Creates a virtual router group.
Step 4
no shutdown
Example:
switch(config-if-vrrp)# no
shutdown
Enables the VRRP group. Disabled by default.
Step 5
no preempt
Example:
switch(config-if-vrrp)# no preempt
Disables the preempt option and allows the master to remain
when a higher-priority backup appears.
Step 6
no shutdown
Example:
switch(config-if-vrrp)# no
shutdown
Enables the VRRP group. Disabled by default.
Step 7
show vrrp
Example:
switch(config-if-vrrp)# show vrrp
(Optional) Displays a summary of VRRP information.
Step 8
copy running-config startup-config
Example:
switch(config-if-vrrp)# copy
running-config startup-config
(Optional) Saves this configuration change.