PLANET WGSW-50040 - Manual (Page 218)

Usage Guide:
The maximum time interval of routing announcement should be smaller than the lifetime value
routing announcement.
Example:
Set the maximum time interval of sending routing announcement is 20 seconds.
Switch(Config-if-Vlan1)#ipv6 nd max-ra-interval 20
12.2.14 ipv6 nd prefix
Command:
ipv6 nd prefix <ipv6-prefix | prefix-length>{ [ >]
[ no-autoconfig | off-link[no-autoconfig] ]}
no ipv6 nd prefix
Function:
Configure the address prefix and relative parameters for router announcement.
Parameter:
<ipv6-prefix> is the address prefix of the specified announcement,
<prefix-length> is the length of the address prefix of the specified announcement,
<valid-lifetime> is the valid lifetime of the prefix,
<preferred-lifetime> is the preferred lifetime of the prefix, and the valid lifetime must be no smaller
than preferred lifetime.
no-autoconfig says this prefix can not be used to automatically configure IPv6 address on the host
in link-local.
off-link says the prefix specified by router announcement message is not assigned to link-local, the
node which sends data to the address including this prefix consider link-local as unreachable.
Command Mode:
Interface Configuration Mode
Default:
The default value of valid-lifetime is 2592000 seconds (30 days), the default value of
preferred-lifetime is 604800 seconds (7 days). off-link is off by default, no-autoconfig is off by
default.
Usage Guide:
This command allows controlling the router announcement parameters of every IPv6 prefix. Note
that valid lifetime and preferred lifetime must be configured simultaneously.
Example:
Configure IPv6 announcement prefix as 2001:410:0:1::/64 on Vlan1, the valid lifetime of this prefix
is 8640 seconds, and its preferred lifetime is 4320 seconds.