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Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
OL-8915-03
Chapter 38 Configuring HSRP and Enhanced Object Tracking
Configuring Enhanced Object Tracking
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, for the object to be up, IP routing must be enabled and active on the interface, the
interface line protocol state must be up, and the interface IP address must be known. All three of these
conditions must met; otherwise, 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 gigabitethernet0/1 line-protocol
Switch(config-track)#
end
Switch#
show track 33
Track 33
Interface GigabitEthernet0/1 line-protocol
Line protocol is Down (hw down)
1 change, last change 00:18:28
Configuring a Tracked List
You can configure a tracked list of objects with a Boolean expression, a weight threshold, or a percentage
threshold. A tracked list contains one or more objects. An object must exist before it can be added to the
tracked list.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 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.
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
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.
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
Verify that the specified objects are being tracked.
Step 9
copy running-config
startup-config
(Optional) Save your entries in the configuration file.
