Command Reference Guide

3Com Router 5000 Family and Router 6000 Family vrrp vrid track ● 21
Command Reference
vrrp vrid track
Purpose Use the vrrp vrid track command to configure the interface to be tracked.
Use the undo vrrp vrid track command to disable tracking the specified
interface.
Syntax vrrp vrid virtual-router-ID track interface-name [ reduced
priority-reduced ]
undo vrrp vrid virtual-router-ID track [ interface-name ]
Parameters virtual-router-ID
VRRP standby group number. Valid values are 1 to 255.
interface-name
Interface to be tracked.
priority-reduced
Value by which the priority is reduced. Valid values are
1 to 255
If not specified, the default is 10.
Example Track interface Serial 0/0/0.
[3Com -Ethernet0/2/0] vrrp vrid 1 track serial0/0/0 reduced 50
Disable the router to track interface Serial 0/0/0.
[3Com -Ethernet0/2/0] undo vrrp vrid 1 track serial0/0/0
View This command can be used in the following views:
■ Ethernet Interface view
■ Bridge Template view
Description The interface tracking function expands the backup functionality of VRRP. It provides
backup not only when routers fail but also when network interfaces go down.
After the monitored interface specified in this command goes down, the priority of
the router owning this interface automatically decreased by the value specified by
value-reduced, allowing a higher priority router in the standby group to take over
as the master. When the router is the IP address owner, however, you cannot
configure interface tracking on it.