H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – IPv6 Configuration
H3C S7500E Series Ethernet Switches Chapter 1 IPv6 Basics Configuration
1-17
 Note:
The values of the Retrans Timer field and the Reachable Time field configured for an
interface are sent to hosts via RA messages. Furthermore, this interface sends NS
messages at intervals of Retrans Timer and considers a neighbor reachable within the
time of Reachable Time.
Follow these steps to configure parameters related to an RA message:
To do… Use the command… Remarks
Enter system view
system-view
—
Configure the
current hop limit
ipv6 nd hop-limit value
Optional
64 by default.
Enter interface view
interface interface-type
interface-number
—
Disable the RA
message
suppression
undo ipv6 nd ra halt
Optional
By default, RA messages are
suppressed.
Configure the
maximum and
minimum intervals
for sending RA
messages
ipv6 nd ra interval
max-interval-value
min-interval-value
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.
Configure the prefix
information options
in RA messages
ipv6 nd ra prefix
{ ipv6-address
prefix-length |
ipv6-address/prefix-leng
th } valid-lifetime
preferred-lifetime
[ no-autoconfig
[ off-link ]*
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.
Set the M flag bit to
1
ipv6 nd autoconfig
managed-address-flag
Optional
By default, the M flag bit is set to
0, that is, hosts acquire IPv6
addresses through stateless
autoconfiguration.