H3C S9500 Series Operation Manual page 1418

Operation Manual – Cluster Management
H3C S9500 Series Routing Switches
2.2.2 Configuring NDP on a Port
You can control the collection of neighbor device information for the specified port by
enabling/disabling NDP on the port. With NDP enabled on the port and in the system,
the system periodically collects the NDP neighbor information about the adjacent node
of the port. With NDP disabled on the port, the system cannot collect NDP information
through the port.
Follow these steps to enable NDP on a port:
To do...
Enter system view
Enter Ethernet port
view
Enable NDP on the
port
2.2.3 Configuring the Aging Timer for NDP Information
Upon receipt of NDP packets, from the aging timer information carried in the packets,
the switch can learn about the aging timer for the NDP information of the neighbor
device that sent the packets and discards the NDP information of the neighbor device
once the aging timer is exceeded. This configuration allows you to set the aging timer
for the NDP information of the current device on the neighbor device.
Follow these steps to configure the aging timer for NDP information:
To do...
Enter system view
Configure the aging
timer for NDP
information
2.2.4 Configuring the Interval to Send NDP Packets
The NDP information of the adjacent device must be updated periodically to ensure that
the switch can update the local NDP neighbor information table in time after the
Use the command...
system-view
interface interface-type
interface-number
ndp enable
Use the command...
system-view
ndp timer aging
aging-in-secs
2-3
Chapter 2 NDP Configuration
Remarks
—
Currently, only common
Ethernet interface boards and
Gigabit Ethernet interface
boards support NDP.
By default, NDP is disabled on
a port.
Remarks
—
By default, the aging timer for
NDP information is 180
seconds.
The aging timer for NDP
information must be greater
than the interval at which NDP
packets are sent; otherwise,
the NDP information table will
be unstable.