Configuring The Maximum Number Of Neighbors Dynamically Learned; Configuring Parameters Related To An Ra Message - H3C S9500 Series Operation Manual

Operation Manual – IPv6 Basics
H3C S9500 Series Routing Switches
Caution:
You can adopt either of the following two 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
needs to resolve the corresponding layer 2 port information of the VLAN interface.
If you adopt the second method to configure a static neighbor entry, you should
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 relates the VLAN interface to an IPv6
address to uniquely identify a static neighbor entry.

1.4.2 Configuring the Maximum Number of Neighbors Dynamically Learned

The device can dynamically acquire the link-layer address of a neighbor node through
NS and NA messages and add it into the neighbor table. Too large a neighbor 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 will stop learning neighbor information.
Follow these steps to configure the maximum number of neighbors dynamically
learned:
Enter system view
Enter interface view
Configure the maximum number
of neighbors dynamically
learned on an interface

1.4.3 Configuring Parameters Related to an RA Message

You can configure whether the interface sends an RA message, the interval for sending
RA messages, and parameters in RA messages. After receiving an RA message, a
host can use these parameters to perform corresponding operations.
configurable parameters in an RA message and their descriptions.
To do...
1-15
Chapter 1 IPv6 Basics Configuration
Use the command...
system-view
interface interface-type
interface-number
ipv6 neighbors
max-learning-num number
Remarks
—
—
Optional
1024 by default.
Table 1-4 lists the