Tracking A Metric Threshold - Dell C9000 Series Networking Configuration Manual

• For intermediate system to intermediate system (ISIS), you can set the resolution in the range from 1 to
1000, where the default is 10.
• For OSPF, you can set the resolution in the range from 1 to 1592, where the default is 1.
• The resolution value used to map static routes is not configurable. By default, Dell Networking OS
assigns a metric of 0 to static routes.
• The resolution value used to map router information protocol (RIP) routes is not configurable. The RIP
hop-count is automatically multiplied by 16 to scale it; a RIP metric of 16 (unreachable) scales to 256,
which considers the route to be DOWN. For example, to configure object tracking for a RIP route to be
considered UP only if the RIP hop count is less than or equal to 4, you would configure the UP threshold
to be 64 (4 x 16) and the DOWN threshold to be 65.

Tracking a Metric Threshold

Use the following commands to configure object tracking on the metric threshold of an IPv4 or IPv6 route.
To remove object tracking, use the no track object-id command.
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 65535.
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
Object Tracking 732