2.Assign the Path Cost. The value range is from 1 to 65535.
3.Assign the port priority value. The value range is from 0 to 255. The lowest value has higher priority.
4.Click Apply 
button.
SPT – Per Port Configuration interface
Port Mirroring
The Port mirroring is a method for monitor traffic in switched networks. Traffic through ports can be monitored by one specific port. That is, traffic goes in or out monitored
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