Cisco IE 4000, Software Configuration Manual

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Configuring Enhanced Object Tracking
Configuring Enhanced Object Tracking Features

Configuring Static Routing Support, page 983
Default Configuration
No type of object tracking is configured.
Tracking Interface Line-Protocol or IP Routing State
You can track either the interface line protocol state or the interface IP routing state. When you track the IP routing state,
these three conditions are required for the object to be up:

IP routing must be enabled and active on the interface.

The interface line-protocol state must be up.

The interface IP address must be known.
If all three of these conditions are not met, the IP routing state is down.
Beginning in privileged EXEC mode, follow these steps to track the line-protocol state or IP routing state of an interface:
This example configures the tracking of an interface line-protocol state and verifies the configuration:
Switch(config)# track 33 interface GigabitEthernet1/17 line-protocol
Switch(config-track)# end
Switch#
show track 33
Track 33
Command Purpose
1. configure terminal Enter global configuration mode.
2. track object-number interface
interface-id line-protocol
(Optional) Create 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.
3. 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.
4. exit Return to global configuration mode.
5. track object-number interface
interface-id ip routing
(Optional) Create 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.
6. 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.
7. end Return to privileged EXEC mode.
8. show track object-number Verify that the specified objects are being tracked.
9. copy running-config
startup-config (Optional) Save your entries in the configuration file.