HP JG221A User Manual

Configuring the management switch
Enabling NDP globally and for specific ports
For NDP to work normally, you must enable NTDP both globally and on specific ports.
Follow these steps to enable NDP globally and for specific ports:
To do… Use the command… Remarks
Enter system view system-view —
Enable NDP globally ndp enable
Optional
Enabled by default.
In system view ndp enable interfaceinterface-list
interface interface-type
interface-number
Enable the
NDP feature for
the port(s)
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 a
port which connects with the devices that do not need to join
the cluster. This prevents the management switch from adding and collecting topology information from
devices which do not need to joint the cluster.
Configuring NDP parameters
A port enabled with NDP periodically sends NDP packets to its neighbors. If no NDP information from
the neighbor is received to rest the holdtime, the holdtime times out and the device removes the
corresponding entry from the NDP table.
Follow these steps to configure NDP parameters:
To do… Use the command… Remarks
Enter system view system-view —
Configure the interval for sending
NDP packets
ndp timer hello hello-time
Optional
60 seconds by default.
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.
Enabling NTDP globally and for specific ports
For NTDP to work normally, you must enable NTDP both globally and on specific ports.
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HP JG221A Specifications

General

Brand	HP
Model	JG221A
Category	Switch
Language	English