Dell Configuration Guide for the S4048–ON System 9.14.2.6

Tracking a Metric Threshold

Use the following commands to configure object tracking on the metric threshold of an IPv4 or IPv6 route.

1. (Optional) Reconfigure the default resolution value used by the specified protocol to scale the metric for IPv4 or IPv6 routes.
   CONFIGURATION mode
   track resolution {ip route | ipv6 route} {isis resolution-value | ospf resolution-value}
   The range of resolution values is:

   • ISIS routes - 1 to 1000. The default is 1.
   • OSPF routes - 1 to 1592. The efault is 1.
2. Configure object tracking on the metric of an IPv4 or IPv6 route.
   CONFIGURATION mode
   track object-id {ip route ip-address/prefix-len | ipv6 route ipv6-address/prefix-len} metric threshold [vrf vrf-name]
   Valid object IDs are from 1 to 500.
   Enter an IPv4 address in dotted decimal format. Valid IPv4 prefix lengths are from /0 to /32.
   Enter an IPv6 address in X:X:X:X::X format. Valid IPv6 prefix lengths are from /0 to /128.
   (Optional) E-Series only: For an IPv4 route, you can enter a VRF name.
3. (Optional) Configure the time delay used before communicating a change in the UP and/or DOWN status of a tracked route.
   OBJECT TRACKING mode
   delay {[up seconds] [down seconds]}
   Valid delay times are from 0 to 180 seconds.
   The default is 0.
4. (Optional) Identify the tracked object with a text description.
   OBJECT TRACKING mode
   description text
   The text string can be up to 80 characters.
5. (Optional) Configure the metric threshold for the UP and/or DOWN routing status to be tracked for the specified route.
   OBJECT TRACKING mode
   threshold metric {[up number] [down number]}
   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.
   The defult DOWN threshold is 255. The routing state is DOWN if the scaled route metric is greater than or equal to the DOWN threshold.
6. (Optional) Display the tracking configuration.
   EXEC Privilege mode
   show track object-id

DellEMC(conf)#track 6 ip route 2.1.1.0/24 metric threshold
DellEMC(conf-track-6)#delay down 20
DellEMC(conf-track-6)#delay up 20
DellEMC(conf-track-6)#description track ip route metric
DellEMC(conf-track-6)#threshold metric down 40
DellEMC(conf-track-6)#threshold metric up 40
DellEMC(conf-track-6)#exit
DellEMC(conf)#track 10 ip route 3.1.1.0/24 metric threshold
vrf vrf1

DellEMC(conf)#track 8 ipv6 route 2::/64 metric threshold
DellEMC(conf-track-8)#threshold metric up 30
DellEMC(conf-track-8)#threshold metric down 40