HP E4510-48G, Command Reference Manual

Page: 1269 / 1334

20-5
Use the undo ndp enable command to disable this feature.
By default, NDP is enabled globally and also on all ports.
Note that:
z
When being executed in system view, the ndp enable command enables NDP globally if you do
not specify the interface keyword; if you specify the interface keyword, the command enables
NDP for the specified Ethernet port(s).
z
When being executed in interface view, this command enables NDP for the current port only.
z
Configured in Layer 2 aggregate interface view, the configuration will not take effect on the
member ports of the aggregation group that corresponds to the aggregate interface; configured on
a member port of an aggregation group, the configuration will take effect only after the member
port quit the aggregation group. For description of aggregation configurations, refer to Link
Aggregation Configuration in the Access Volume .
Examples
# Enable NDP globally.
<Sysname> system-view
[Sysname] ndp enable
# Enable NDP for port GigabitEthernet 1/0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] ndp enable
ndp timer aging
Syntax
ndp timer aging aging-time
undo ndp timer aging
View
System view
Default Level
2: System level
Parameters
aging-time : Time for a device to keep the NDP packets it receives, in the range 5 to 255 seconds.
Description
Use the ndp timer aging command to specify the time that a device should keep the NDP packets it
received from the adjacent device.
Use the undo timer aging command to restore the default.
By default, the time that a receiving device should keep the NDP packets is 180 seconds.
Note that the time for the receiving device to hold NDP packets cannot be shorter than the interval to
send NDP packets; otherwise, the NDP table may become instable.
Related commands: ndp timer hello .