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Dell Command Line Reference Guide for the S4048–ON System 9.14.2.4

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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 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

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