Which of the following are spanning tree port states?（）A、LearningB、SpanningC、ListeningD、ForwardingE、InitializingF、FilteringG、Permitting
Which of the following are spanning tree port states?（）
- A、Learning
- B、Spanning
- C、Listening
- D、Forwarding
- E、Initializing
- F、Filtering
- G、Permitting
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