Commonly used show commands for judging the faults of switches
Check the cpu and memory usage of the switch
Show process cpu
Show memeory summary
If the cpu utilization is too high, the switch may be forwarding a large number of broadcast storm or worm packets
Check the utilization of all interfaces on the switch
Show int counter to view the traffic of the interface globally (clear counter clears obsolete data first)
Show int counter error, view the error condition of the interface globally.
Description of common parameters
Outdiscard,output drops: this error occurs when the switch instantly forwards a large amount of data to the output interface, which exceeds the output queue cache of the interface. The error is generally normal and can be solved by increasing the cache or bandwidth of the output interface.
Input error, crc error: it is usually caused by network cable or peer equipment failure.
