Administrator Guide

VRRP Object Tracking
As a client, VRRP can track up to 20 objects (including route entries, and Layer 2 and Layer 3 interfaces) in addition to the 12 tracked
interfaces supported for each VRRP group.
You can assign a unique priority-cost value from 1 to 254 to each tracked VRRP object or group interface. The priority cost is subtracted
from the VRRP group priority if a tracked VRRP object is in a DOWN state. If a VRRP group router acts as owner-master, the run-time
VRRP group priority remains fixed at 255 and changes in the state of a tracked object have no effect.
NOTE: In VRRP object tracking, the sum of the priority costs for all tracked objects and interfaces cannot equal or
exceed the priority of the VRRP group.
Object Tracking Configuration
You can configure three types of object tracking for a client.
• Track Layer 2 Interfaces
• Track Layer 3 Interfaces
• Track an IPv4/IPv6 Route
For a complete listing of all commands related to object tracking, refer to the Dell EMC Networking OS Command Line Interface
Reference Guide.
Tracking a Layer 2 Interface
You can create an object that tracks the line-protocol state of a Layer 2 interface and monitors its operational status (UP or DOWN).
You can track the status of any of the following Layer 2 interfaces:
• 1 Gigabit Ethernet: Enter gigabitethernet slot/port in the track interface interface command (see Step 1).
• 10 Gigabit Ethernet: Enter tengigabitethernet slot/port.
• Port channel: Enter port-channel number.
• VLAN: Enter vlan vlan-id, where valid VLAN IDs are from 1 to 4094
A line-protocol object only tracks the link-level (UP/DOWN) status of a specified interface. When the link-level status goes down, the
tracked object status is DOWN; if the link-level status is up, the tracked object status is UP.
To remove object tracking on a Layer 2 interface, use the no track object-id command.
To configure object tracking on the status of a Layer 2 interface, use the following commands.
1. Configure object tracking on the line-protocol state of a Layer 2 interface.
CONFIGURATION mode
track object-id interface interface line-protocol
Valid object IDs are from 1 to 500.
2. (Optional) Configure the time delay used before communicating a change in the status of a tracked interface.
OBJECT TRACKING mode
delay {[up seconds] [down seconds]}
Valid delay times are from 0 to 180 seconds.
The default is 0.
3. (Optional) Identify the tracked object with a text description.
OBJECT TRACKING mode
description text
The text string can be up to 80 characters.
4. (Optional) Display the tracking configuration and the tracked object’s status.
EXEC Privilege mode
show track object-id
DellEMC(conf)#track 100 interface tengigabitethernet 1/1/1/1 line-protocol
DellEMC(conf-track-100)#delay up 20
DellEMC(conf-track-100)#description San Jose data center
DellEMC(conf-track-100)#end
DellEMC#show track 100
566
Object Tracking