Users Guide

• track ip route reachability – configure 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.
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-specific. 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 configure 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 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 1098