Chapter 40 Configuring HSRP and Enhanced Object Tracking

Configuring Enhanced Object Tracking

 

Command

Purpose

Step 4

 

 

delay {up seconds [down seconds]

(Optional) Specify a period of time in seconds to delay communicating state

 

[up seconds] down seconds}

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.

 

 

 

Use the no track track-numberglobal 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

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.

Beginning in privileged EXEC mode, follow these steps to configure a tracked list of objects by using a weight threshold and to configure a weight for each object:

 

 

Command

Purpose

 

Step 1

 

 

 

configure terminal

Enter global configuration mode.

 

Step 2

 

 

 

track track-numberlist threshold

Configure a tracked list object and enter tracking configuration mode. The

 

 

weight

track-numbercan be from 1 to 500.

 

 

 

threshold—Specify the state of the tracked list based on a threshold.

 

 

 

weight—Specify that the threshold is based on weight.

 

Step 3

 

 

 

object object-number [weight

Specify the object to be tracked. The range is from 1 to 500. The optional

 

 

weight-number]

weight weight-numberspecifies a threshold weight for the object. The range

 

 

 

is from 1 to 255.

 

 

 

Note An object must exist before you can add it to a tracked list.

 

Step 4

 

 

 

threshold weight {up number

Specify the threshold weight.

 

 

[down number]}

up number—The valid range is from 1 to 255.

 

 

 

 

 

 

down number—(Optional) The range depends on the number selected

 

 

 

for the up number. If you configure the up number as 25, the range

 

 

 

shown for the down number is 0 to 24.

 

Step 5

 

 

 

delay {up seconds [down seconds]

(Optional) Specify a period of time in seconds to delay communicating state

 

 

[up seconds] down seconds}

changes of a tracked object. The range is from 1 to 180 seconds.

 

Step 6

 

 

 

end

Return to privileged EXEC mode.

 

Step 7

 

 

 

show track object-number

Verify that the specified objects are being tracked.

 

Step 8

 

 

 

copy running-config startup-config

(Optional) Save your entries in the configuration file.

 

 

 

 

 

 

 

 

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

OL-9775-02

 

 

40-15

 

 

 

 

 

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Cisco Systems 3750E manual Track track-numberlist threshold, Weight, Threshold weight up number, 40-15