Network Troubleshooting第 90 / 100 题
An access switch port connected to a PC keeps going into an err-disabled state. Which security feature most likely triggered this?
a.Quality of Service
b.Link aggregation
c.Spanning tree root guard
d.Port security violation
解析
A port security violation can place a port into err-disabled state when it detects more MAC addresses than allowed. Reviewing the configured maximum and violation mode reveals the cause. Clearing the condition and correcting the setup restores the port.
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