单项选择题
A.BEB.AF2C.EFD.CS7
A.1:1叠加VPLSB.1:N叠加VPLSC.1:1叠加VPWSD.1:N叠加VPWS
A.show mpls vc-tableB.show mpls forwarding-tableC.show mpls vrf-tableD.show mpls ilm-table
A.shipos inB.shiproC.shiposneD.shiposdat
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