A.224.0.0.5B.224.0.0.9C.224.0.0.18D.224.0.0.28
A.Discarding B.Disabled C.Blocking D.Listening E.Learning F.Forwarding
A.不收發(fā)任何報文 B.不接收或轉(zhuǎn)發(fā)數(shù)據(jù),接收但不發(fā)送BPDU,不進(jìn)行地址學(xué)習(xí) C.不接收或轉(zhuǎn)發(fā)數(shù)據(jù),接收并發(fā)送BPDU,不進(jìn)行地址學(xué)習(xí) D.不接收或轉(zhuǎn)發(fā)數(shù)據(jù),接收并發(fā)送BPDU,開始地址學(xué)習(xí) E.接收或轉(zhuǎn)發(fā)數(shù)據(jù),接收并發(fā)送BPDU,開始地址學(xué)習(xí)