Configuring parameters related to ra messages – H3C Technologies H3C WX3000E Series Wireless Switches User Manual

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Associate a neighbor IPv6 address and link-layer address with the Layer 3 interface of the local

node.

Associate a neighbor IPv6 address and link-layer address with a port in a VLAN containing the
local node.

Follow these steps to configure a static neighbor entry:

To do...

Use the command...

Remarks

Enter system view

system-view

Configure a static
neighbor entry

ipv6 neighbor ipv6-address mac-address { vlan-id
port-type
port-number | interface interface-type

interface-number }

Required

CAUTION:

You can use either of the previous configuration methods to configure a static neighbor entry for a VLAN
interface.

After a static neighbor entry is configured by using the first method, the device must resolve the
corresponding Layer 2 port information of the VLAN interface.

If you use the second method, ensure that the corresponding VLAN interface exists and that the Layer 2
port specified by

port-type port-number belongs to the VLAN specified by vlan-id. After a static

neighbor entry is configured, the device associates the VLAN interface with the IPv6 address to identify

the static neighbor entry uniquely.

Configuring the maximum number of neighbors dynamically
learned

The device can dynamically acquire the link-layer address of a neighboring node through NS and NA

messages and add it into the neighbor table. A large table may reduce the forwarding performance of

the device. You can restrict the size of the neighbor table by setting the maximum number of neighbors

that an interface can dynamically learn. When the number of dynamically learned neighbors reaches
the threshold, the interface stops learning neighbor information.
Follow these steps to configure the maximum number of neighbors dynamically learned:

To do…

Use the command…

Remarks

Enter system view

system-view

Enter interface view

interface interface-type
interface-number

Configure the maximum number of
neighbors dynamically learned by
an interface

ipv6 neighbors max-learning-num
number

Optional
By default, an interface can learn
up to 256 neighbors dynamically.

Configuring parameters related to RA messages

You can enable an interface to send RA messages, and configure the interval for sending RA messages

and parameters in RA messages. After receiving an RA message, a host can use these parameters to

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