多项选择题
A.add B.Move C.Context D.ServiceChange E.Transaction
A.PADR B.PADI C.PADT D.PADO
A.frames with crc8 error B.Bad Frame C.frames with linec oding error D.measures received laser power during idle periods on the PON(data only) E.frame failing crc32 check before fec processing(data only)
A.上联端口的多播包和未知包的包抑制没有关闭 B.线卡PON口下行流量高 C.上联端口下行流量高 D.从组播源发出的组播流有问题 E.机顶盒问题
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