Dell C9000 series, Reference Manual

Page: 1478 / 2286

track ipv6 route reachability
Configure object tracking on the reachability of an IPv6 route.
Syntax
track object-id ipv6 route ip-address/prefix-len reachability
To return to the default setting, use the
no track object-id
command.
Parameters
object-id Enter the ID number of the tracked object. The range is from 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, 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 Description
9.9(0.0) Introduced on the C9010.
9.8(0.0) Introduced on the S3048-ON and S4048-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 reachability of an IPv6 route. In
order for a route’s reachability to be tracked, the route must appear as an entry in the
routing table.
A tracked 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 tracked route is considered to be DOWN.
When you configure IPv6 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 ARP
cache. A tracked route is considered to be reachable if there is an ARP cache entry for
the route's next-hop address.
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