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cluster ntdp 
Description 
The cluster ntdp command is used to configure NTDP globally. To return to the 
default configuration, please use no cluster ntdp command. NTDP (Neighbor 
Topology Discovery Protocol) is used to collect the NDP information and 
neighboring connection information of each device in a specific network range. 
It provides the commander switch with the information of devices which can join 
the cluster and collects topology information of devices within the specified 
hops. 
Syntax 
cluster ntdp [status { disable | enable }] [interval interval] [hop hop] 
[hop-delay hop-delay] [port-delay port-delay] 
no cluster ntdp 
Parameter 
status  ——  Enable/ Disable NTDP function globally. By default, it is enabled. 
interval  —— NTDP Interval Time, which is the interval to collect topology 
information. NTDP Interval Time ranges from 1 to 60 in minutes. By default, it is 
1. 
hop  —— NTDP Hops, which is the hop count the switch topology collects. 
NTDP Hops ranges from 1 to 16. By default, it is 3. 
hop-delay  —— NTDP Hop Delay, which is the time between the switch 
receiving NTDP request packets and the switch forwarding NTDP request 
packets for the first time. NTDP Hop Delay ranges from 1 to 1000 in 
milliseconds. By default, it is 200. 
port-delay  —— NTDP Port Delay, which is the time between the port 
forwarding NTDP request packets and its adjacent port forwarding NTDP 
request packets over. NTDP Port Delay ranges from 1 to 100 in milliseconds. By 
default, it is 20. 
Command Mode 
Global Configuration Mode 
Example 
Enable NTDP function globally, and specify NTDP Interval Time as 20 minutes, 
NTDP Hops as 5, NTDP Hop Delay as 300 milliseconds, and NTDP Port Delay 
as 50 milliseconds: