Users Guide

Reachability is Down (route not in route table)
2 changes, last change 00:03:03
Tracking a Metric Threshold
Use the following commands to configure object tracking on the metric threshold of an IPv4 or IPv6 route.
To remove object tracking, use the no track object-id command.
1 (Optional) Reconfigure the default resolution value used by the specified protocol to scale the metric for IPv4 or IPv6
routes.
CONFIGURATION mode
track resolution {ip route | ipv6 route} {isis resolution-value | ospf resolution-value}
The range of resolution values is:
• ISIS routes - 1 to 1000. The default is 1.
• OSPF routes - 1 to 1592. The efault is 1.
2 Configure object tracking on the metric of an IPv4 or IPv6 route.
CONFIGURATION mode
track object-id {ip route ip-address/prefix-len | ipv6 route ipv6-address/prefix-len} metric
threshold [vrf vrf-name]
Valid object IDs are from 1 to 65535.
Enter an IPv4 address in dotted decimal format. Valid IPv4 prefix lengths are from /0 to /32.
Enter an IPv6 address in X:X:X:X::X format. Valid IPv6 prefix lengths are from /0 to /128.
(Optional) E-Series only: For an IPv4 route, you can enter a VRF name.
3 (Optional) Configure the time delay used before communicating a change in the UP and/or DOWN status of a tracked
route.
OBJECT TRACKING mode
delay {[up seconds] [down seconds]}
Valid delay times are from 0 to 180 seconds.
The default is 0.
4 (Optional) Identify the tracked object with a text description.
OBJECT TRACKING mode
description text
The text string can be up to 80 characters.
5 (Optional) Configure the metric threshold for the UP and/or DOWN routing status to be tracked for the specified route.
OBJECT TRACKING mode
threshold metric {[up number] [down number]}
The default UP threshold is 254. The routing state is UP if the scaled route metric is less than or equal to the UP threshold.
The defult DOWN threshold is 255. The routing state is DOWN if the scaled route metric is greater than or equal to the
DOWN threshold.
6 (Optional) Display the tracking configuration.
EXEC Privilege mode
show track object-id
Object Tracking 520