Changing the reachable time duration for neighbors

Syntax:

ipv6 nd ra reachable–time <1000–3600000|unspecified>

no ipv6 nd ra reachable–time <1000–3600000|unspecified>

reachable–time : VLAN-context command for all hosts on the VLAN to configure as the reachable time duration for a given neighbor after receiving a reachability confirmation from the neighbor. This value is used to ensure a uniform reachable time among hosts on the VLAN by replacing the individually configured settings on various hosts on the VLAN.

1000–3600000 : Reachable time in milliseconds.

unspecified : Configures the reachable time to zero, which disables the reachable-time setting in RAs on the current VLAN.

The no form also disables the reachable-time setting in RAs on the current VLAN.

Default: unspecified (0); Range: 1000–3600000 ms

NOTE:

If multiple routers on the same VLAN are configured to advertise a reachable time, all such routers should use the same reachable-time setting.