A.5小時(shí) B.7小時(shí) C.10小時(shí) D.15小時(shí)
A.IP報(bào)文頭中的DSCP B.以太網(wǎng)數(shù)據(jù)幀頭中的802.1ptag C.MPLS標(biāo)簽頭中的exp D.ATM信元頭中的VCI
A.ECAM(Extended Channel Assignment Message) B.ESCAM(Extended Supplemental ChannelAssignment Message) C.PSMM(Pilot Strength Measuremen tMessage) D.HDM(Handoff Direction Message)