H3C Technologies H3C S12500 Series Switches - Manual (Page 159)

145
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure the maximum
number of neighbors
dynamically learned by an
interface.
ipv6 neighbors
max-learning-num number
Optional.
By default, the maximum number of
neighbors that a Layer 2 Ethernet interface
can learn is the maximum neighbor number
supported by the adopted system working
mode.
Setting the age timer for ND entries in stale state
ND entries in stale state have an age timer. If an ND entry in stale state is not refreshed before the timer
expires, it transits to the delay state. If it is still not refreshed in 5 seconds, the ND entry transits to the
probe state, and the device sends an NS message for detection. If no response is received after three ND
messages are sent, the device removes the ND entry.
To set the age timer for ND entries in stale state:
Step Command Remarks
1. Enter system view. system-view N/A
2. Set the age timer for ND
entries in stale state.
ipv6 neighbor stale-aging
aging-time Optional.
4 hours by default.
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
perform operations.
Table 10 lists and describes the configurable parameters in an RA message.
Table 10 Parameters in an RA message and their descriptions
Parameters Description
Cur Hop Limit
When sending an IPv6 packet, a host uses the value to fill the Hop Limit field in IPv6
headers. The value is also filled into the Hop Limit field in the response packet of a
switch.
Prefix Information
options After receiving the prefix information advertised by the switch, the hosts on the same
link can perform stateless autoconfiguration.
MTU This field is used to make sure all nodes on a link use the same MTU value.