多项选择题
PWE3仿真ATM业务时,OptiXPTN支持哪几种封装模式?()
A.N to 1 VPC
B.1 to 1 VPC
C.1 to 1 VCC
D.N to 1 VCC
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多项选择题
A.N to 1 VPC
B.1 to 1 VPC
C.1 to 1 VCC
D.N to 1 VCC
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