Administrator Guide

threshold metric
Congure the metric threshold used to determine the UP and/or DOWN state of a tracked IPv4 or IPv6 route.
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 is255. 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-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-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
Use this command to congure the UP and/or DOWN threshold for the scaled metric of a tracked IPv4 or IPv6
route.
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 dierent 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 congured 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.
Congure the UP and DOWN thresholds for each tracked route with the threshold metric command. The
default UP threshold is 254; the default DOWN threshold is 255. The notication of a change in the state of a
tracked object is sent when a metric value crosses a congured threshold.
Object Tracking 1047