????:1???????:???????????

2?????????????

3???????????

4???????

5??????

???????10??????????????????31????????? (????????????????????? ??????????)?????(??????????????)??????????????????????(????“????????????????????”)10???????31?????

???????????“2+3+N”?,????“???”“???”2???????;“???????IP????????”“?????????”“?”3?????????????????????;??????????????????????“N”???????????10???????????????

?????????????????????????????????9??????,????????????????200?????????????????100??,???????????????????????????????????????????????IP?????

????600????????????,????????,?????????????????????????

?,???“??????????”????????50????????,??????????????????????????????????????,???????????????????

“????????????????”???????????????????????????????????????????????????40??,????????

??IP?????????????,??????????????????????????20????,??IP?????????“??????IP???”??????“??IP???????”?????????

????????“?”??????????????,?11???,????????

?????????????????????????????????

????????????????????????,???????????????????,???????????“???????????????”?????????????????11????3???????????????????????,????????(???????) ???????:????????