Users Guide

Parameters
object-id Enter the ID number of the tracked object. The range is 1 to 500.
ipv6-address/
prefix-len
Enter an IPv6 address in X:X:X:X::X format. The valid IPv6 prefix
lengths are from /0 to / 128.
Defaults None
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
8.3.12.0 Introduced on the S4810.
8.4.1.0 Introduced.
Usage Information
Use this command to create an object that tracks the UP and/or DOWN threshold of an
IPv6 route metric. In order for a route’s metric to be tracked, the route must appear as
an entry in the routing table.
A tracked IPv6 route is considered to match an entry in the routing table only if the
exact IPv6 address and prefix length match a table entry. For example, when configured
as a tracked route, 3333:100:200:300:400::/80 does not match routing table entry
3333:100:200:300::/64. If no route-table entry has the exact IPv6 address and prefix
length, the status of the tracked route is considered to be DOWN.
When you configure the threshold of an IPv6 route metric as a tracked object, the UP/
DOWN state of the tracked route is also determined by the current metric for the route
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.
You configure the UP and DOWN thresholds for each tracked IPv6 route by using the
threshold metric command. The default UP threshold is 254; the default DOWN
Object Tracking 1359