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Configuring the management device
Enabling NDP globally and for specific ports
For NDP to work normally, you must enable NTDP both globally and on specific ports.
To enable NDP globally and for specific ports:
To do… Use the command… Remarks
1. Enter system view.
system-view —
2. Enable NDP globally.
ndp enable
Optional.
Enabled by default.
In system view ndp enable interfaceinterface-list
interface interface-type interface-
number
3. Enable the
NDP
feature for
the ports.
In Ethernet
interface view
or Layer 2
aggregate
interface view
ndp enable
Use either command.
By default, NDP is enabled
globally and also on all ports.
NOTE:
HP recommends that you disable NDP on the port which connects with the devices that do not need to
join the cluster, preventing the management device from adding the device which needs not to join the
cluster and collecting the topology information of this device.
Configuring NDP parameters
A port enabled with NDP periodically sends NDP packets to its neighbors. If no NDP information from
the neighbor is received when the holdtime times out, the device removes the corresponding entry from
the NDP table.
To configure NDP parameters:
To do… Use the command… Remarks
1. Enter system view.
system-view —
2. Configure the interval for
sending NDP packets.
ndp timer hello hello-time
Optional.
60 seconds by default.
3. Configure the period for the
receiving device to keep the
NDP packets.
ndp timer aging aging-time
Optional.
180 seconds by default.
CAUTION:
The time for the receiving device to hold NDP packets cannot be shorter than the interval for sending
NDP packets; otherwise, the NDP table may become instable.
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