? ? ? OSI????? TCP/IP?? - PowerPoint PPT Presentation

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? ? ? OSI????? TCP/IP??

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OSI TCP/IP Protocol TCP/IP RFC http://www.rfc-editor.org ... – PowerPoint PPT presentation

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Title: ? ? ? OSI????? TCP/IP??


1
? ? ?OSI?????TCP/IP??
2
??(Protocol)
  • ?????????
  • TCP/IP???RFC??
  • ????
  • http//www.rfc-editor.org/download.html
  • ???????http//www.china-pub.com

3
??(Protocol)
  • ??????
  • ?????????????????
  • ??????????????????
  • ??????????????

4
OSI????
  • OSI??????
  • OSI????Open System Interconnection Reference
    Model,??OSI/RM
  • ?ISO(???????)?20??80?????,????????????????????
  • ????????,??????

5
OSI????
  • ?????
  • ??????????????????,???????????
  • ?????????????????????,?????????
  • ??????????,?????????????????,???????????,?????????
    ????????

6
OSI????
  • OSI?????7???
  • ???
  • ???????????
  • ????????????????
  • ????????

7
OSI????
  • ?????
  • ???????????????
  • ??????
  • ???
  • ????
  • ???
  • ?????????
  • ?????????
  • ???????????
  • ????????

8
OSI????
  • ???
  • ???????
  • ???????????,?????????
  • ???????
  • ???????
  • ???
  • ?????????????????
  • ?????????

9
OSI????
  • ???
  • ??????????
  • ???????????????
  • ??????????????????
  • ???
  • ?????
  • ??????????????
  • ?????????????????

10
OSI????
  • OSI????7??????
  • ???????

PDU Protocol Data Unit,??????
11
OSI????
  • ????????

??B
??A
7 6 5 4 3 2 1
7 6 5 4 3 2 1
???
Packet
Frame
Bits
??2
??1
12
OSI????
  • ???????
  • ??????(Repeater)????(Hub)
  • ???????(Bridge)????(Switch)
  • ??????(Router)
  • ????(Gateway)

13
OSI????
  • OSI???????
  • ?????????
  • ????
  • ?????????
  • ?????????
  • ??????

14
TCP/IP??
  • TCP/IP???????
  • ??????????????
  • ????????OSI??????????????????
  • TCP/IP?????????TCP???IP??

15
TCP/IP??
  • ?????
  • ??????IP??????????,??????????????
  • TCP/IP????????????????????????
  • ???
  • ???????????????
  • ????IP?ICMP?ARP?RARP?

16
TCP/IP??
  • ???
  • ???????????????????
  • ????TCP?UDP
  • ???
  • ??????????????,???????????????
  • ????HTTP?FTP?SMTP??
  • ??????????TCP??,??????????UDP??,????????????

17
TCP/IP??
  • ???TCP/IP??
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