Administrator Guide

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
EMC Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100-ON.
9.8(2.0) Introduced on the S3100 series.
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.
Configure 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 notification of a
change in the state of a tracked object is sent when a metric value crosses a configured threshold.
The tracking process uses a protocol-specific resolution value to convert the actual metric in the routing
table to a scaled metric in the range 0 to 255. You can configure the resolution value used to scale route
metrics for supported protocols with the track resolution ip route and track resolution
ipv6 route commands.
Related
Commands
● track ip route metric threshold – configure object tracking on the threshold of an IPv4 route metric.
● track resolution ip route – configure the protocol-specific resolution value used to scale an IPv4 route
metric.
1022 Object Tracking