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2. ?2000???,ITU-T SG15???????????????????????,??:?????(ASON,EoT,MPLS-TP,OTN)?????(DWDM,40G??,???,??????)?????????/????????????(xDSL,GPON,XGPON,HN)??/???????????????????OAM. SG15???????. 3. ??????. ?10?,?????????????????????????????/???????IPTV?????HDTV??/???????????10G/40G/100G????????
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