3Com Switch 4800G 24-Port Configuration Manual page 512

512 C 38: IP 6 B
HAPTER V ASICS
C
ONFIGURATION
Follow these steps to configure parameters related to an RA message:
To do...
Enter system view
Configure the current hop
limit
Enter interface view
Disable the RA message
suppression
Configure the maximum and
minimum intervals for
sending RA messages
Configure the prefix
information options in RA
messages
Set the M flag bit to 1
Set the O flag bit to 1.
Configure the router lifetime
in RA messages
Set the retrans timer
Use the command...
system-view
ipv6 nd hop-limit value
interface interface-type
interface-number
undo ipv6 nd ra halt
ipv6 nd ra interval
max-interval-value
min-interval-value
ipv6 nd ra prefix
{ ipv6-address prefix-length |
ipv6-address/prefix-length }
valid-lifetime
preferred-lifetime
[ no-autoconfig [ off-link ]*
ipv6 nd autoconfig
managed-address-flag
ipv6 nd autoconfig
other-flag
ipv6 nd ra router-lifetime
value
ipv6 nd ns retrans-timer
value
Remarks
-
Optional
64 by default.
-
Optional
By default, RA messages are
suppressed.
Optional
By default, the maximum
interval for sending RA
messages is 600 seconds, and
the minimum interval is 200
seconds.
The device sends RA messages
at intervals of a random value
between the maximum
interval and the minimum
interval.
The minimum interval should
be less than or equal to 0.75
times the maximum interval.
Optional
By default, no prefix
information is configured in
RA messages and the IPv6
address of the interface
sending RA messages is used
as the prefix information.
Optional
By default, the M flag bit is set
to 0, that is, hosts acquire IPv6
addresses through stateless
autoconfiguration.
Optional
By default, the O flag bit is set
to 0, that is, hosts acquire
other information through
stateless autoconfiguration.
Optional
1,800 seconds by default.
Optional
By default, the local interface
sends NS messages at intervals
of 1,000 milliseconds and the
Retrans Timer field in RA
messages sent by the local
interface is equal to 0.