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T-MPLS满足ITU-T G.805定义的分层结构，T-MPLS网络可以分为（)。
A.媒质层
B.段层
C.通路层
D.通道层
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.媒质层
B.段层
C.通路层
D.通道层
如果结果不匹配，请 联系老师 获取答案
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A.MPLS OAM
B.TMC OAM
C.T-MPLS OAM
D.TMD OAM
B.DM is used to measure packet transport delay and delay variation from one MEP to another MEP.
C.Experimental (EX) function: send frame. for experiment use in a management domai
D.CSF is used to transmit failure signal at client layer from T-MPLS trail termination source to T-MPLS trail termination sink.
E. loopback link detectio
B.When 1+1 T-MPLS is in unidirectional protection switching mode, the protection switching is completed by sink selector of protection domain totally based on local (protection sink) info.
C.1+1 T-MPLS work (protected) services bridge work connection and protection connection permanently at source end of protection domain.
D.Connectivity check (CC) only performs check to currently active LSP.
B.nIn 1+1 T-MPLS path protection structure, if a unidirectional fault (transmission direction from node A to Z) occurs to working connection, it will be detected at sink node Z of protecting domain and then node Z selector will switch to protection connectio
C.n1+1 T-MPLS path protection is of unidirectional switching type -- that is to say, only the affected end needs to switch to the protection path and selectors at the two ends are relatively independent.
D.nIn 1+1 T-MPLS path protection structure, to avoid single-point fault, working connection and protection connection should run along isolated routes.
A、Σ (Tunnel CIR) ＜= T-MPLS SECTION总带宽。
B、Σ (Tunnel PIR) ＜= T-MPLS SECTION总带宽。
A.nworking lock
B.nprotection lock
C.nforced switching
D.nmanual switching
