TP-LINK JetStream TL-SG3424 TL-SG3424 데이터 시트

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Enable: 
Click the Enable button to enable NDP for the port you select. 
Disable: 
Click the Disable button to disable NDP for the port you select. 
Note: 
1.  NDP function is effective only when NDP function is enabled globally and for the port. 
2.  The aging time should be set over the hello time value, otherwise this setting will be invalid 
and will not take effect. 
13.2 NTDP 
NTDP (Neighbor Topology Discovery Protocol)is used for the commander switch to collect NDP 
information. NTDP transmits and forwards NTDP topology collection request based on NDP 
neighbor information table, and collects the NDP information and neighboring connection 
information of each device in a specific network range. The commander switch can collects the 
specified topology in the network regularly and you can also enable topology collection manually 
on the commander switch. 
After the commander switch sends out NTDP request packets, lots of switches receive the request 
packets and send out response packets at the same time, which may result in network congestion 
and the commander switch overload. To avoid the above problem, two time parameters are 
designed to control the spread speed of NTDP request packets.   
 
NTDP hop delay: Indicates the time between the switch receiving NTDP request packets and 
the switch forwarding NTDP request packets for the first time.   
 
NTDP port delay: Indicates the time between the port forwarding NTDP request packets and its 
adjacent port forwarding NTDP request packets over. 
The NTDP function can be implemented on Device Table, NTDP Summary and NTDP Config 
pages. 
13.2.1  Device Table 
On this page you can view the information of the devices collected by NTDP. Meanwhile, no matter 
whether a cluster is established, on this page you can manually collect NTDP information at any 
time to manage and control devices.   
Choose the menu Cluster→NTDP→Device Table to load the following page. 
 
Figure 13-5 Device Table 
The following entries are displayed on this screen:
 
 
Device Table 
Device Type: 
Displays the device description collected through NTDP. 
Device MAC: 
Displays the MAC address of this device. 
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