Dell C9010 Modular Chassis Switch EMC Networking Command-Line Reference Guide - Page 1148
track reachability refresh, Object Tracking
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Related Commands When you configure IPv4 route reachability as a tracked object, the UP/DOWN state of the tracked route is also determined by the entry of the next-hop address in the address resolution protocol (ARP) cache. A tracked route is considered to be reachable if there is an ARP cache entry for the route's next-hop address. If the next-hop address in the ARP cache ages out for a route tracked for its reachability, an attempt is made to regenerate the ARP cache entry if the next-hop address appears before considering the route DOWN. ● show track - displays information about tracked objects, including configuration, current state, and clients which track the object. ● track ip route metric threshold - configures object tracking on the threshold of an IPv4 route metric. track reachability refresh Change the refresh interval for tracking the reachability of the next-hop. If the next-hop address in the ARP cache ages out for a route tracked for its reachability, an attempt is made to check if the next-hop address is reachable after a certain refresh interval before considering the route DOWN. Syntax Parameters track reachability refresh interval interval Enter the refresh interval, in seconds, for object tracking reachability. The range is from 0 to 60 seconds. The default is 60. Defaults Enabled Command Modes CONFIGURATION 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) 9.10(0.0) 9.10(0.0) 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 8.3.12.0 8.4.1.0 Introduced on the S6010-ON and S4048T-ON. Introduced on the S3148. Introduced on the S6100-ON. Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the S4810. Introduced. Usage Information Related Commands To disable the attempt to track the reachability of next-hop after the configured refresh interval, set the refresh interval as 0. ● show track - display information about tracked objects, including configuration, current state, and clients which track the object. ● track ip route metric threshold - configure object tracking on the threshold of an IPv4 route metric. 1148 Object Tracking
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