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多项选择题Which three statements about RSTP are true?()

A、RSTP significantly reduces topology reconverging time after a link failure.

B、RSTP expends the STP port roles by adding the alternate and backup roles.

C、RSTP port atates are blocking,discarding,learing,orforwarding.

D、RSTP also uses the STP proprsal-agreement sequence.

E、RSTP use the same timer-baseed processas STP on point-to-pointlinks.

F、RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.

  • A,B,F
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