Dell C9000 Series Reference Manual page 1465

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
9.9(0.0)
9.8(0.0)
9.7(0.0)
8.3.12.0
8.4.1.0
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:
•
•
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
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Commands
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Description
Introduced on the C9010.
Introduced on the S3048-ON and S4048-ON.
Introduced on the S6000-ON.
Introduced on the S4810.
Introduced.
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.
track ip route metric threshold
IPv4 route metric.
track resolution ip route
to scale an IPv4 route metric.
– configures object tracking on the threshold of an
– configures the protocol-specific resolution value used
Object Tracking 1465