Deployment Guide

Virtual Router Redundancy Protocol (VRRP) | 27
track
c e s
Monitor an interface or a configured object and, optionally, reconfigure the cost value subtracted from
the VRRP group priority if the tracked interface or object goes down. You can assign up to 12 tracked
interfaces and up to 20 tracked objects per virtual group.
Syntax
track {interface | object-id} [priority-cost cost]
Parameters
Defaults
cost = 10
Command Modes
VRRP
Command
History
Usage
Information
The sum of the costs of all tracked interfaces and objects cannot equal or exceed the priority of the
VRRP group.
If the VRRP group is configured as the Owner router (priority 255), tracking for the group is disabled,
irrespective of the state of tracked interfaces and objects. The priority of the owner group always
remains as 255 and does not change.
interface
Enter one of the following values:
• For a 1-Gigabit Ethernet interface, enter gigabitethernet slot-number/
port-number.
• For a Loopback interface, enter loopback number, where valid loopback interface
numbers are from 0 to 16383.
• For a Port Channel interface, enter port-channe
l number, where valid port-channel
numbers are:
C-Series and S-Series: 1 to 128
E-Series: 1 to 32 for EtherScale; 1 to 255 for TeraScale; 1 to 512 for ExaScale.
• For SONET interfaces, enter sonet slot-number/port-number.
• For a 10-Gigabit Ethernet interface, enter tengigabitethernet slot-number/
port-number.
• For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE followed by the
slot/port information.
• For a VLAN interface, enter vlan id-number, where valid VLAN IDs are from 1 to
4094.
object-id
Enter the ID number of an object (for example, IPv4/IPv6 route or Layer 2/Layer 3
interface) configured with one of the track object-id commands.
Range: 1 to 65535.
cost
(OPTIONAL) Enter a number as the cost amount to be subtracted from the VRRP priority
value.
Range: 1 to 254. Default: 10.
Version 8.4.6.0 Added support for the keyword fortyGigE.
Version 8.4.1.0
Support for the
object-id variable was added.
Version 8.3.2.0 Introduced for IPv6 on E-Series TeraScale
Version 7.6.1.0 Introduced on S-Series
Version 7.5.1.0 Introduced on C-Series
pre-Version 6.2.1.1 Introduced on E-Series