LevelOne GTL-2691 - Manual (Page 1434)

C HAPTER 48 | IP Interface Commands
IPv6 Interface
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C OMMAND U SAGE
◆ Prefixes configured as addresses on an interface using the ipv6 address
command are advertised in router advertisements. If prefixes are
configured for advertisement using the ipv6 nd prefix command, then
only these prefixes are advertised.
◆ The preferred lifetime and valid lifetime are counted down in real time.
After the preferred lifetime expires, no new connections are made using
this prefix. When the valid lifetime expires, this prefix will no longer be
advertised.
◆ All prefixes are inserted in the routing table as Connected (i.e., on-
line), unless specified with the off-link option. If the off-link option is
specified, and the prefix is already present in the routing table as a
Connected prefix, it will be removed.
◆ Do not include the link-local prefix in the list of advertised prefixes.
E XAMPLE
The following configures a network prefix with a valid lifetime of 1000
seconds, and a preferred lifetime of 900 seconds:
Console(config)#interface vlan 1
Console(config)#ipv6 nd prefix 2011:0DBF::/35 1000 900
Console(config)#
ipv6 nd ra interval This command configures the interval between the transmission of IPv6
router advertisements on an interface. Use the no form to restore the
default interval.
S YNTAX
ipv6 nd ra interval interval
no ipv6 nd ra interval
interval - The interval between IPv6 router advertisements.
(Range: 3-1800 seconds)
C OMMAND M ODE
Interface Configuration (VLAN)
D EFAULT S ETTING
600 seconds
C OMMAND U SAGE
◆ The interval between transmissions should be less than or equal to the
IPv6 router advertisement lifetime if you configure a route as a default
router by using the ipv6 nd ra lifetime command.
◆ To prevent synchronization with other IPv6 nodes, the actual interval
used is randomly selected from a value between the minimum value set