Configuring Ndp Parameters; Enabling Ntdp Globally And For Specific Ports; Configuring Ntdp Parameters - 3Com 4510G Configuration Manual

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 corresponding entry is removed from the
NDP table.
Follow these steps to configure NDP parameters:
To do...
Enter system view
Configure the interval for
sending NDP packets
Configure the period for the
receiving device to keep the
NDP packets
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.
Follow these steps to enable NTDP globally and for specific ports:
To do...
Enter system view
Enable NTDP globally
Enable NTDP for the port
You are recommended to disable NTDP 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 NTDP Parameters

By configuring the maximum hops for collecting topology information, you can get topology information
Use the command...
system-view
ndp timer hello hello-time
ndp timer aging aging-time
Use the command...
system-view
ntdp enable
interface interface-type
interface-number
ntdp enable
25-8
Remarks
—
Optional
60 seconds by default.
Optional
180 seconds by default.
Remarks
—
Optional
Enabled by default
Optional
NTDP is enabled on all ports
by default.