1. © R.J.Meijer OSI Referentie Model Physical Applicatie Presentatie Sessie Transport Netwerk Data Link Applicatie Presentatie Sessie Transport Netwerk Data Link Open Systems Interconnection

2. © R.J.Meijer 2 computers & netwerk Physical

3. © R.J.Meijer Applicatie communicatie Physical Applicatie

4. © R.J.Meijer Transport Physical Applicatie Transport Applicatie Transport Samenwerken zonder teveel aan telecommuncatie kennis

5. © R.J.Meijer Datalink Physical Applicatie Transport Data Link Applicatie Transport Data Link Details van netwerken verdwijnen

6. © R.J.Meijer routering Physical Applicatie Transport Data Link Applicatie Transport Data Link

7. © R.J.Meijer Data Link Netwerk Netwerklaag Physical Applicatie Transport Data Link Applicatie Transport Data Link Netwerk Details van netwerk topologieen verdwijnen

8. © R.J.Meijer Data Link Netwerk Sessie Physical Applicatie Transport Data Link Applicatie Transport Data Link Netwerk Communicatie in “hoofdstukken” en ook als het transport “stokt” Sessie

9. © R.J.Meijer Data Link Netwerk Presentatie Physical Applicatie Transport Data Link Applicatie Transport Data Link Netwerk Vertaling van “lokale” informatie naar “transport” naar “lokale” representatie” Sessie Presentatie onzinnonsense 

10. © R.J.Meijer OSI Referentie Model Physical Applicatie Presentatie Sessie Transport Netwerk Data Link Applicatie Presentatie Sessie Transport Netwerk Data Link Netwerk

11. © R.J.Meijer OSI Presentation Application Session Transport Network Data Link Physical IBM SNA End User Transaction Service Presentation Service Data Flow Control Transmission Control Path Control Data Link Control Physical Control Protocol Families TCP/IP Internetwork Applications Service Service Provider Protocol Subnetworks

12. © R.J.Meijer Hard and Software components Presentation Application Session Transport Network Data Link Physical Presentation Application Session Transport Network Data Link Physical Software Hardware

13. © R.J.Meijer Two Types of Layers Presentation Application Session Transport Network Data Link Physical Presentation Application Session Transport Network Data Link Physical Applicatie Transport

14. © R.J.Meijer Transport Oriented Layers Transport Network Data Link Physical Transport Network Data Link Physical DataToFrom PC4AXP23 DataToFrom PC4AXP23 Direct Connection

15. © R.J.Meijer Data Transport 1 T N D DataToFrom PC4AXP23 Indirect Connection N T PC4 AXP23 N D D

16. © R.J.Meijer Data Transport 2 T N D DataToFrom PC4AXP23 Indirect Connection DataToFrom N T PC4 AXP23 N D D

17. © R.J.Meijer Data Transport 3 T N D Indirect Connection N T PC4 AXP23 N D Data12923 D

18. © R.J.Meijer Data Transport 4 T N D Indirect Connection N D 232 T PC4 AXP23 N D Data2312901111110 232

19. © R.J.Meijer Data Transport 5 T N D Physical Indirect Connection N D 232 T PC4 AXP23 N D

20. © R.J.Meijer Data Transport 6 T N D Indirect Connection Data2312901111110 232 N D 232 T PC4 AXP23 N D

21. © R.J.Meijer Data Transport 7 T N D Indirect Connection N T PC4 AXP23 N D Data12923 D

22. © R.J.Meijer Data Transport 8 T N D Indirect Connection N T PC4 AXP23 N D Data12923 D

23. © R.J.Meijer Data Transport 9 T N D Indirect Connection N T PC4 AXP23 N D Data2312901111110 329 D

24. © R.J.Meijer Data Transport 10 T N D Indirect Connection N Physical T PC4 AXP23 N D D

25. © R.J.Meijer Data Transport 11 T N D Indirect Connection N T D 329 Data2312901111110 329 PC4 AXP23 N D

26. © R.J.Meijer Data Transport 12 T N D Indirect Connection N T PC4 AXP23 N Data12923 N 23 D D

27. © R.J.Meijer Data Transport 13 T N D Indirect Connection N T DataToFrom PC4 AXP23 D N D

28. © R.J.Meijer Data Transport 14 T N D DataToFrom PC4AXP23 DataToFrom PC4AXP23 Indirect Connection N T PC4 AXP23 D N D

29. © R.J.Meijer Data Transport 15 T N D OkToFrom PC4AXP23 OkToFrom PC4AXP23 Indirect Connection N T PC4 AXP23 D N D

30. © R.J.Meijer Two Types of Layers Presentation Application Session Transport Network Data Link Physical Presentation Application Session Transport Network Data Link Physical Application Transport

31. © R.J.Meijer End-End connection Presentation Application Session Transport Network Data Link Physical Presentation Application Session Transport Network Data Link Physical Application Transport