Configuring A Tracked List - Cisco Catalyst 4500 Series Software Configuration Manual

Chapter 69 Configuring Enhanced Object Tracking
To track the line-protocol state or IP routing state of an interface, perform the following task:
Command
Step 1
configure terminal
Step 2
track object-number interface
interface-id line-protocol
Step 3
delay {up seconds [down
seconds] | [up seconds] down
seconds}
Step 4
exit
Step 5
track object-number interface
interface-id ip routing
Step 6
delay {up seconds [down
seconds] | [up seconds] down
seconds}
Step 7
end
Step 8
show track object-number
Step 9
copy running-config
startup-config
This example configures the tracking of an interface line-protocol state and verifies the configuration:
Switch(config)# track 33 interface gigabitethernet 1/0/1 line-protocol
Switch(config-track)# end
Switch# show track 33
Track 33
Interface GigabitEthernet1/0/1 line-protocol
Line protocol is Down (hw down)

Configuring a Tracked List

You can configure a tracked list of objects with a Boolean expression, a weight threshold, or a percentage
threshold. A tracked list contains one or more objects. An object must exist before it can be added to the
tracked list.
•
•
Purpose
Enters global configuration mode.
(Optional) Creates a tracking list to track the line-protocol state of an interface
and enter tracking configuration mode.
• The object-number identifies the tracked object and can be from 1 to 500.
The interface interface-id is the interface being tracked.
•
(Optional) Specifies a period of time in seconds to delay communicating state
changes of a tracked object. The range is from 1 to 180 seconds.
Returns to global configuration mode.
(Optional) Creates a tracking list to track the IP routing state of an interface,
and enter tracking configuration mode. IP-route tracking tracks an IP route in
the routing table and the ability of an interface to route IP packets.
The object-number identifies the tracked object and can be from 1 to 500.
•
The interface interface-id is the interface being tracked.
•
(Optional) Specifies a period of time in seconds to delay communicating state
changes of a tracked object. The range is from 1 to 180 seconds.
Returns to privileged EXEC mode.
Verifies that the specified objects are being tracked.
(Optional) Saves your entries in the configuration file.
1 change, last change 00:18:28
You configure a Boolean expression to specify calculation by using either "AND" or "OR"
operators.
When you measure the tracked list state by a weight threshold, you assign a weight number to each
object in the tracked list. The state of the tracked list is determined by whether or not the threshold
was met. The state of each object is determined by comparing the total weight of all objects against
a threshold weight for each object.
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Configuring Enhanced Object Tracking Features
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