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Chapter 42 Configuring Enhanced Object Tracking
Configuring Enhanced Object Tracking Features
Configuring IP SLAs Object Tracking
Cisco IOS IP Service Level Agreements (IP SLAs) is a network performance measurement and
diagnostics tool that uses active monitoring by generating traffic to measure network performance. Cisco
IP SLAs operations collects real-time metrics that you can use for network troubleshooting, design, and
analysis.
For more information about Cisco IP SLAs on the switch, see
Chapter 41, “Configuring Cisco IOS IP
For IP SLAs command information see the
Cisco IOS IP SLAs Command Reference,
Release 12.4T
at this URL:
http://www.cisco.com/en/US/products/ps6441/products_command_reference_book09186a008049739b
.html
Object tracking of IP SLAs operations allows clients to track the output from IP SLAs objects and use
this information to trigger an action. Every IP SLAs operation maintains an SNMP operation return-code
value, such as
OK
or
OverThreshold
, that can be interpreted by the tracking process. You can track two
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:
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
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.
Step 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.
Step 4
exit
Return to global configuration mode.
Step 5
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.
Step 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.
Step 7
end
Return to privileged EXEC mode.
Step 8
show track
object-number
Display tracking information to verify the configuration.
Step 9
copy running-config startup-config
(Optional) Save your entries in the configuration file.
