Cisco Catalyst 3120 User Manual

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Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
OL-12247-01
Chapter 42 Configuring Enhanced Object Tracking
Configuring Enhanced Object Tracking Features
Beginning in privileged EXEC mode, follow these steps to configure a tracked list of objects with a
Boolean expression:
Use the no track track-number global configuration command to delete the tracked list.
This example configures track list 4 with a Boolean AND expression that contains two objects with one
object state negated. If the list is up, the list detects that object 2 is down:
Switch(config)# track 4 list boolean and
Switch(config-track)# object 1
Switch(config-track)# object 2 not
Switch(config-track)# exit
Configuring a Tracked List with a Weight Threshold
To track by weight threshold, configure a tracked list of objects, specify that weight is used as the
threshold, and configure a weight for each of its objects. The state of each object is determined by
comparing the total weight of all objects that are up against a threshold weight for each object.
You cannot use the Boolean “NOT” operator in a weight threshold list.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
track track-number list boolean
{and | or}
Configure a tracked list object, and enter tracking configuration mode. The
track-number can be from 1 to 500.
• boolean—Specify the state of the tracked list based on a Boolean
calculation.
• and—Specify that the list is up if all objects are up or down if one or
more objects are down.
• or—Specify that the list is up if one object is up or down if all objects
are down.
Step 3
object object-number [not] Specify the object to be tracked. The range is from 1 to 500. The keyword
not negates the state of the object, which means that when the object is up,
the tracked list detects the object as down.
Note An object must exist before you can add it to a tracked list.
Step 4
delay {up seconds [down seconds] |
[up seconds] down seconds}
(Optional) Specify a period of time in seconds to delay communicating state
changes of a tracked object. The range is from 1 to 180 seconds.
Step 5
end Return to privileged EXEC mode.
Step 6
show track object-number Verify that the specified objects are being tracked.
Step 7
copy running-config startup-config (Optional) Save your entries in the configuration file.

Cisco Catalyst 3120 Specifications

General

Brand	Cisco
Model	Catalyst 3120
Category	Switch
Language	English