Administrator Guide

Example (Brief)
Dell>show track brief
ResId Resource Parameter State LastChange
1 IP route reachability 10.16.0.0/16 Up 00:01:08
2 Interface line-protocol Ethernet0/2 Down 00:05:00
3 Interface ip routing VLAN100 Up 01:10:05
Related
Commands
• show running-config track – displays configuration information about tracked objects.
• track interface ip routing – configures object tracking on the routing status of an IPv4 Layer 3 interface.
• track interface line-protocol – configures object tracking on the line-protocol state of a Layer 2 interface.
• track ip route metric threshold – configures object tracking on the threshold of an IPv4 route metric.
• track ip route reachability – configures object tracking on the reachability of an IPv4 route.
•
threshold metric
Configure the metric threshold used to determine the UP and/or DOWN state of a tracked IPv4 or IPv6 route.
C9000 Series
Syntax
threshold metric {up number | down number}
To return to the default setting, use the no threshold metric {up number | down number}
command.
Parameters
up number Enter a number for the UP threshold to be applied to the scaled metric of an IPv4 or IPv6
route. 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.
down number Enter a number for the DOWN threshold to be applied to the scaled metric of an IPv4 or
IPv6 route. The default DOWN threshold is 255. The routing state is DOWN if the scaled
route metric is greater than or equal to the DOWN threshold.
Defaults none
Command Modes OBJECT TRACKING (conf_track_object-id)
Command History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S6000-ON.
8.3.12.0 Introduced on the S4810.
8.4.1.0 Introduced.
Usage Information
Determine the UP/DOWN state of a tracked route by the threshold for the current value of the route metric in
the routing table. To provide a common tracking interface for different clients, route metrics are scaled in the
range 0 to 255, where 0 is connected and 255 is inaccessible. The scaled metric value communicated to a client
always considers a lower value to have priority over a higher value.
The resulting scaled value is compared against the configured threshold values to determine the state of a tracked
route as follows:
• If the scaled metric for a route entry is less than or equal to the UP threshold, the state of a route is UP.
• If the scaled metric for a route is greater than or equal to the DOWN threshold or the route is not entered in
the routing table, the state of a route is DOWN.
Object Tracking 1095