Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - 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 Description Introduced on the C9010. Introduced on the S3048-ON and S4048-ON. Introduced on the S6000-ON. Introduced on the S4810. Introduced. 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: • 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 - configures object tracking on the threshold of an IPv4 route metric. • track resolution ip route - configures the protocol-specific resolution value used to scale an IPv4 route metric. Object Tracking 1465