?????????????????(C

1
?????
2
1.1 ???????????

• ?????????????????(CC, Computer and
  Communication)???????????????????60????,70????,70?
  ????80?????????,90??????????????????

3
1.1.1 ??????????

• 60?? ???????????? ???--????????????????,??
  ????????????????????????????????????????,?????????
  ?????????????????,????????????????????????????????
  ????--??????????????,?????????????????,???????????
  ???????????????????,??????????????????????????????
  ????????????1.1??????????????,M--?????,T--???

4
1.1.1 ??????????
(a) ??????????????????????????MCU??????
5
1.1.1 ??????????
(b) ?????????????FEP,?FEP????????????,???????,???
??????????????
6
1.1.1 ??????????
(c) ???????????????????,??????????????????,??????
??????????????,???????????????????
7
1.1.2 ??????????

• 70?? ???????(PSDN)?? ????????????????????,??
  ???????????????????????,???????,?????????????10??
  1???,???????????????,?????????????

8
1.1.2 ??????????

• 70??,?????????????DARPA(Defense Advanced Research
  Project Agency)?ARPANET???,?????"????--????"??,???
  ??????????ARPANET?????????,???????????????ARPANET?
  ???????????????????,??????????????????????????????
  ?????????,????????????????????????????????????????
  ??????

9
1.1.2 ??????????

• ??????????????????????

10
1.1.2 ??????????

• 70?? ???????(PSDN)?? ARPANET????????????????
  ????,????????????????????????????Internet???TCP/IP
  ????????????????

11
1.1.2 ??????????

• ARPNET????????(Communication Subnet)?????(Resource
  Subnet)??????????????????????IMP(Interface
  Message Processor)??????????????????Host???????,??
  ?????,??????????????????????????,?????????????????
  ?????????????????????(??H1)????????(??H2)????????H
  1????????????????IMP??,?????????????(?????????????
  ?)?????IMP??,???????IMP??,??????????IMP,??????????
  ?????

12
1.1.2 ??????????

• ??,?IMP???????,??????????IMP?????--??(Store and
  forward)?????????,????????????????,???????????????
  ??ARPANET???--????????????(Packet),?????????????(M
  essage)????????,????????--?????????????,????????--
  ???????????????????????(PSDN)?

13
1.1.2 ??????????

• 80?? LAN??????????????ISDN????IN??? ???
  ??????????????????????? ???????????????????????
  ?????????????LAN??????????? ???????????????????
  /????(CSMA/CD)?????(Token Passing)????????(Slotted
  access)?

14
1.1.2 ??????????

• 70??????????????????????????????????????????????,
  ??????LAN(Local Area network)???????80??,???????OA
  ,??????MIS,?????CAD/CAM????????????,LAN???????
• LAN?????????????(0.1--100Mbps),?????(0.1--25Km),?
  ???(10-8--10-11)??????????????????,???????????????
  ????IEEE802(?ISO 8802)????
• ??????????????????????????????????????????LAN????
  ?,???????????????????????????

15
1.1.2 ??????????

• ???LAN????
• ???????Ethernet,
• ???3COM?
• IBM??????(Token Ring)
• ?????FDDI?? ?????????,????????????MAN(Motropoli
  tan Area Network),???LAN???,??????????(????)??????
  ???(30Mbps--1Gbps??)?

16
1.1.2 ??????????

• 80?? LAN??????????????ISDN????IN???
  ????OSI??? 80???,?ISO/OSI???????,ISO??????????
  ??CCITT???????????????,?????????????,????OSI??????
  ????????????????ISP(International Standardized
  profile)?

17
1.1.2 ??????????

• ???????ISDN ???????????????????????,???????????
  ????????????????ISDN?????????

18
1.1.2 ??????????

• ?1984??,???????????????????ISDN???,??1988????????
  ???,?64Kbps??????ISDN???????????????1.5Mbps(?2Mbps
  )? ???????ATM,??????SDH/?????SONET????????ISDN?
  ????????????????(Mbps)????(Gagabps)?ISDN??????????
  ????????,??????????,?????????????????????,????????
  ????????(Faxsimile)???????(Teletex)?????(Teletext)
  ?????(Videotex)?????(Video Phone)?????(Video
  Conference)?????(E-mail)?????(Telemetry
  ?Survelliance)?????????,???????????

19
1.1.2 ??????????

• ???IN ???IN(Intelligent Network),????????????
  ??????,?????????????????????????????

20
1.1.2 ??????????

• ????????????????1984????1992??CCITT??????????????
  ???????????????????????????,????????????,?????????
  ?????ISDN???????????????ISDN?IN???????????????????
  ???7????????????????????????,??????????????????

21
1.1.2 ??????????

• 90?? ???????????????? ??????
  ??????????????(??????),???????ATM???VLAN??????

22
1.1.2 ??????????

• ????????????????????,???????????????????,????????
  ??????????10M????????????????,????FDDI????????????
  ???????????ATM????IP????????????????????

23
1.1.2 ??????????

• ?????CSCW ?????????????,???????,????????,??????
  ???,??????????????????????"??"???"??"?????????????
  ??????????????????????????????????CSCW????????1984
  ???? MIT ?Irene Greif ? DEC ? Paul Cashman
  ??????????????????????????????????????????????????

24
1.1.2 ??????????

• "??????????"??? ????????????????????,?????????
  ??????????????????????????????????????????????????
  ??????????????,?????????????,?????????????????????
  ?,????????????,???????????,???????????????????????
  ??????????

25
1.1.3 ?????????

• ??????? ????(from the fact)
  ??????,?????????????,??????????????? ????(by
  law) ????????????????

26
1.1.3 ?????????

• ?????????????(ITU,International
  Telecommunication Union) ????????????????3??????
  ITU-R,Radio communications SectorITU-T,Telecommu
  nications SectorITU-D,Development Sector?
  ITU-T?????????,?????CCITT??????????????????????
  ?(ISO,International Standards Organization)
  ????????????,????ANSI(American National Standards
  Institute)? ????????CD(Committee Draft)?DIS
  (Draft International Standard),??IS(International
  Standard)?Internet???????(IAB,Internet
  Architecture Board) ?????????????????IRTF(Intern
  et Research Task Force)?IETF(Internet Engineering
  Task Force),?????????,????????????
  ???????????(DS,Draft Standard)?RFC (Request For
  comments),??IS(Internet Standards)?

27
1.1.3 ?????????
28
1.1.3 ?????????
29
1.1.3 ?????????
30
1.1.3 ?????????
OSI ?????? The OSI Architecture
OSI ??? ?????? Seven Layers of the
OSI Communications Architecture
??? Application Layer
??? Presentation Layer
??? Session Layer
??? Transport Layer
??? Network Layer
????? Data Link Layer
??? Physical Layer
?????? Open Systems Protocol
31
1.2 ???????????

• ?????????????????????,????????????????,??????????
  ????????
• ????????????(????),?????????????????????????,?????
  ?,???????????????????

32
1.2.1 ????????

• ?????????,?????????? ??,???????????????????????
  ???????????,????????,??????????,????????,?????????
  ??? ??,???????????,????????????,???????????????
  ?? ??,???????????(?)???????????????????????????
  ???? ??,???????????????????,????????,??????????
  ??(Interoperation ?interoperability)?????(Interwor
  king)?????????????????????????????????????????????
  ???????????,????????????

33
1.2.2 ????????

• ????????????????????????,?????????????????????????
  ??????????? ???? ???? ???? ????
  ???????? ????? ??

34
1.2.2 ????????

• ???????????????? 1 ???? ???????????????????
  ???,??????,?????????????????? 2????
  ??????????????????????????????????

35
1.2.2 ????????

• ???????????????? 3???? ?????????????????,??
  ???????,??????? 4???? ??????????????????????
  ?,????????????????

36
1.2.2 ????????

• ???????????????? 5????????
  ?????????????????? 6?????
  ?????????????(???????????)

37
1.3 ???????????

• ??????????????????????????????????????????????????
  ?

38
1.3.1 ????????

• ??????? ?????????????????????????,?????
• ???LAN,?1?? ???MAN,?10??
  ???WAN,?100????? ??????????,??????????

39
1.3.1 ???????????

• 2.??????? ?????????????????????????????????????
  ??????????????????????????,???????????????????,???
  ?????????????????,??????????????????????
  ????,?????????????(??)???????(Point-to-Point)????
  ?(Broadcast)?

40
1.3.1 ???????????

• ????? ?????????????????????????????????????????
  ?????????????????????????,???,????,??????,?????,?
  ??????????????,??????????????

41
1.3.1 ???????????

• ???? ????????????????????????????????????????
  ???????,???,???????????????????

42
1.3.1 ????????

• 3.??????????? ?????????????,??????????????????
  ??????? ????????????????????????????
  ??????????????????,????????????,?????????????????
  ??????,???????????????????????

43
1.3.1 ????????

• 4.????????? ???????,???????????,???????????????
  ???,??????????????

44
1.3.1 ????????

• 4.?????????????????????????????????????????,???
  ????????????????,??????????????????????????
• ?163?169??????

45
1.3.1 ????????

• 4.????????? ???????????????????????,????,??????
  ?????????????????????"???"??????????????????????
  ??????????

46
1.3.2 ????????

• ??????????,?????????????????????????
• ?1?????
• ?2CATV?

47
????

• ??????????????????,???????????????????????????????
  ??????????????????????????????????,?????????????

48
????

• 1.????   ???????(PSDN)????????(ISDN)????(IN)?CS
  CW?
• 2.??????????????????
• 3.???????????
• 4.???????????