Juniper JUNOSE 11.3, Configuration Manual

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Tracking IP Prefix Reachability
You can use the track command to define an IPv4 prefix object and track its reachability.
The show track command displays the tracked information for any specified objects.
show track
•
Use to display tracking details for the object you specify.
•
Field descriptions
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Track—Name of the object being tracked
•
IP Route—IP prefix being tracked
•
Virtual router—Virtual router on which the object resides
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First-hop interface—Outgoing interface to reach the prefix
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changes—Number of times the object has changed state
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Tracked by—Application that is doing the tracking
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Example
host1(config)#
show track ERX_Bangalore
Track ERX_Bangalore
IP Route 1.1.1.0 255.255.255.0 reachability
in virtual router 1
Reachability is Up
First-hop interface is FastEthernet3/0
2 change(s)
Tracked by:
Vrrp in virtual router 1
•
See show track.
show track brief
•
Use to display a one-line summary of all objects being tracked.
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Field descriptions
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Object—Name of the object being tracked
•
Type—Type of object being tracked
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Parameter—Parameter type being tracked
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Value—State of the object being tracked
•
Example
host1(config)#
show track brief
Object Type Parameter Value
ERX-WF IP-route reachability Up
ERX-BNG IP-route reachability Up
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JunosE 11.3.x System Basics Configuration Guide