An ERX Edge Router is operating in an MPLS network using interface label space.What is used to make a forwarding decision?（）
- A、EXP bits
- B、VPI / VCI
- C、shim header
- D、SNAP header
正确答案:B
答案解析:有
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An ERX Edge Router is operating in an MPLS network using interface label space.What is used to make a forwarding decision?（）
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