Collect diagnostic information on s series switch

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For S series switches except S1700 switches, you can run the display diagnostic-information command to collect and display current diagnosis information or store the information in a specified file.

Other related questions:
How do WLAN devices collect diagnostic information
For WLAN devices, you can run the display diagnostic-information command to collect and display current diagnostic information or store the information in a specified file.

How to stop the display of diagnostic information after running the display diagnostic-information command through the console port on CE series switches
After the display diagnostic-information command is executed through the console port, it takes a long period to display diagnostic information when a lot of information needs to be displayed. However, pressing CTRL+C cannot stop the display of diagnostic information.
To stop the display of diagnostic information, log in to the device through Telnet and then run the kill user-interface console command to terminate the console interface connection.
<HUAWEI> kill user-interface console 0

Traffic statistics collection on S series switch
On S series switches (except S1700 switches), the statistic enable command in the traffic behavior view can be used to enable traffic statistics collection in the traffic behavior. To view the statistics about packets matching a traffic policy, enable the traffic statistics collection function. After the traffic statistics collection function is enabled, you can run the display traffic policy statistics command to view packet statistics. For the example for configuring traffic statistics, see "Example for Configuring Traffic Statistics" in Typical QoS Configuration.

What is SNMP for S series switches
The Simple Network Management Protocol (SNMP) is a standard network management protocol widely used on TCP/IP networks. Devices function as agents and can be managed and monitored by the manager (NMS). A network administrator can query information, modify data, and locate faults on devices through SNMP, greatly improving work efficiency.

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