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Catalyst 3750 SwitchSoftware Configuration Guide
OL-8550-09
Chapter44 Configuring Enhanced Object Tracking
Configuring Enhanced Object Tracking Features
aspects of IP SLAs operation: state and reachability. For state, if the return code is OK, the track state is
up; if the return code is not OK, the track state is down. For reachability, if the return code is OK or
OverThreshold, reachability is up; if not OK, reachability is down.
Beginning in privileged EXEC mode, follow these steps to track the state of an IP SLAs operation or the
reachability of an IP SLAs IP host:
This example shows how to configure and display IP SLAs state tracking:
Switch(config)# track 2 200 state
Switch(config)# end
Switch# show track 2
Track 2
Response Time Reporter 1 state
State is Down
1 change, last change 00:00:47
Latest operation return code: over threshold
Latest RTT (millisecs) 4
Tracked by:
HSRP Ethernet0/1 3
This example output shows whether a route is reachable:
Switch(config)# track 3 500 reachability
Switch(config)# end
Switch# show track 3
Track 3
Response Time Reporter 1 reachability
Reachability is Up
1 change, last change 00:00:47
Latest operation return code: over threshold
Latest RTT (millisecs) 4
Tracked by:
HSRP Ethernet0/1 3
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 track object-number rtr
operation-number state
Enter tracking configuration mode to track the state of an IP SLAs operation.
The object-number range is from 1 to 500.
The operation-number range is from 1 to 2147483647.
Step3 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.
Step4 exit Return to global configuration mode.
Step5 track object-number rtr
operation-number reachability
Enter tracking configuration mode to track the reachability of an IP SLAs IP
host.
The object-number range is from 1 to 500.
The operation-number range is from 1 to 2147483647.
Step6 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.
Step7 end Return to privileged EXEC mode.
Step8 show track object-number Display tracking information to verify the configuration.
Step9 copy running-config startup-config (Optional) Save your entries in the configuration file.