HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Services Conf - Page 101

Parameters, Description, Command, Remarks, To allow sending of RA messages

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Parameters M flag O flag Router Lifetime Retrans Timer Reachable Time Description Determines whether hosts use the stateful autoconfiguration to acquire IPv6 addresses. If the M flag is set to 1, hosts use the stateful autoconfiguration (for example, through a DHCP server) to acquire IPv6 addresses. Otherwise, hosts use the stateless autoconfiguration to acquire IPv6 addresses and generate IPv6 addresses according to their own link-layer addresses and the obtained prefix information. Determines whether hosts use stateful autoconfiguration to acquire other configuration information. If the O flag is set to 1, hosts use stateful autoconfiguration (for example, through a DHCP server) to acquire other configuration information. Otherwise, hosts use stateless autoconfiguration to acquire other configuration information. Tells the receiving hosts how long the advertising device can live. If the device fails to receive a response message within the specified time after sending an NS message, it will retransmit the NS message. If the neighbor reachability detection shows that a neighbor is reachable, the device considers the neighbor reachable within the specified reachable time. If the device must send a packet to the neighbor after the specified reachable time expires, the device will reconfirm whether the neighbor is reachable. To allow sending of RA messages: Step 1. Enter system view. 2. Enter interface view. 3. Disable RA message suppression. Command system-view interface interface-type interface-number undo ipv6 nd ra halt 4. Configure the maximum and ipv6 nd ra interval minimum intervals for sending max-interval-value RA messages. min-interval-value Remarks N/A N/A 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 random intervals between the maximum interval and the minimum interval. The minimum interval should be less than or equal to 0.75 times the maximum interval. To configure parameters related to RA messages: Step 1. Enter system view. 2. Configure the hop limit. 3. Enter interface view. Command system-view ipv6 nd hop-limit value interface interface-type interface-number 93 Remarks N/A Optional. 64 by default. N/A

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93
Parameters
Description
M flag
Determines whether hosts use the stateful autoconfiguration to acquire IPv6
addresses.
If the M flag is set to 1, hosts use the stateful autoconfiguration (for example, through
a DHCP server) to acquire IPv6 addresses. Otherwise, hosts use the stateless
autoconfiguration to acquire IPv6 addresses and generate IPv6 addresses
according to their own link-layer addresses and the obtained prefix information.
O flag
Determines whether hosts use stateful autoconfiguration to acquire other
configuration information.
If the O flag is set to 1, hosts use stateful autoconfiguration (for example, through a
DHCP server) to acquire other configuration information. Otherwise, hosts use
stateless autoconfiguration to acquire other configuration information.
Router Lifetime
Tells the receiving hosts how long the advertising device can live.
Retrans Timer
If the device fails to receive a response message within the specified time after
sending an NS message, it will retransmit the NS message.
Reachable Time
If the neighbor reachability detection shows that a neighbor is reachable, the device
considers the neighbor reachable within the specified reachable time. If the device
must send a packet to the neighbor after the specified reachable time expires, the
device will reconfirm whether the neighbor is reachable.
To allow sending of RA messages:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
N/A
3.
Disable RA message
suppression.
undo ipv6 nd ra halt
By default, RA messages are suppressed.
4.
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 random
intervals between the maximum interval
and the minimum interval.
The minimum interval should be less than
or equal to 0.75 times the maximum
interval.
To configure parameters related to RA messages:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the hop limit.
ipv6 nd hop-limit
value
Optional.
64 by default.
3.
Enter interface view.
interface
interface-type
interface-number
N/A