H3C Technologies H3C MSR 50 - Manual (Page 76)

Step Command Remarks
Optional.
By default, NTDP is enabled on all
ports.
To avoid the management device
collecting unnecessary topology
data, disable NTDP on ports
connected to non-candidate
devices.
114. Enable NTDP on the port. ntdp enable
Configuring NTDP parameters
NTDP parameter configuration includes the following:
• Limiting the maximum number of hops (devices) from which topology data is collected.
• Setting the topology data collection interval.
• Setting the following topology request forwarding delays for requested devices' NTDP-enabled
ports:
{
Forwarding delay for the first NTDP-enabled port—After receiving a topology request, the
requested device forwards the request out of the first NTDP-enabled port when this forwarding
delay expires rather than immediately.
{
Forwarding delay for other NTDP-enabled ports—After the first NTDP-enabled port forwards
the request, all other NTDP-enabled ports forward the request in turn at this delay interval.
The delay settings are conveyed in topology requests sent to the requested devices. They help
avoid concurrent responses to an NTDP topology-collection request causing congestion and deny
of service on the management device.
To configure NTDP parameters:
Step Command Remarks
115. Enter system view. system-view N/A
Optional. 116. Configure the maximum hops
for topology collection.
ntdp hop hop-value
The default setting is 3.
117. Configure the interval for
collecting topology
information.
Optional.
ntdp timer interval
The default setting is 1 minute.
118. Configure the delay for the
first NTDP-enabled port to
forward a topology-collection
request.
Optional.
ntdp timer hop-delay delay-time
The default setting is 200 ms.
119. Configure the delay for other
NTDP-enabled ports to
forward a topology-collection
request.
Optional.
ntdp timer port-delay delay-time
The default setting is 20 ms.
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