© R.J.Meijer

OSI Referentie Model

Physical Physical

Applicatie

Presentatie

Sessie

Transport

Netwerk

Data Link

Applicatie

Presentatie

Sessie

Transport

Netwerk

Data Link

OpenSystems

Interconnection

© R.J.Meijer 2 computers&

netwerk

Physical Physical

© R.J.MeijerApplicatie

communicatie

Physical Physical

Applicatie Applicatie

© R.J.Meijer

Transport

Physical Physical

Applicatie

Transport

Applicatie

Transport

Samenwerken zonder teveel aan telecommuncatie kennis

© R.J.Meijer

Datalink

Physical Physical

Applicatie

Transport

Data Link

Applicatie

Transport

Data Link

Details van netwerken verdwijnen

© R.J.Meijer

routering

Physical Physical

Applicatie

Transport

Data Link

Applicatie

Transport

Data Link

© R.J.Meijer

Data Link

Netwerk

Netwerklaag

Physical Physical

Applicatie

Transport

Data Link

Applicatie

Transport

Data Link

Netwerk Netwerk

Details van netwerk topologieen verdwijnen

© R.J.Meijer

Data Link

Netwerk

Sessie

Physical Physical

Applicatie

Transport

Data Link

Applicatie

Transport

Data Link

Netwerk Netwerk

Communicatie in “hoofdstukken” en ook als het transport “stokt”

Sessie Sessie

© R.J.Meijer

Data Link

Netwerk

Presentatie

Physical Physical

Applicatie

Transport

Data Link

Applicatie

Transport

Data Link

Netwerk Netwerk

Vertaling van “lokale” informatie naar “transport” naar “lokale” representatie”

Sessie Sessie

Presentatie Presentatieonzin nonsense

© R.J.Meijer

OSI Referentie Model

Physical Physical

Applicatie

Presentatie

Sessie

Transport

Netwerk

Data Link

Applicatie

Presentatie

Sessie

Transport

Netwerk

Data LinkData Link

Netwerk

© 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

ApplicationsService

Service Provider Protocol

Subnetworks

© 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

© 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

© R.J.Meijer Transport OrientedLayers

Transport

Network

Data Link

Physical

Transport

Network

Data Link

Physical

DataTo From

PC4 AXP23

DataTo From

PC4 AXP23

Direct Connection

© R.J.Meijer

Data Transport 1

T

N

D

DataTo From

PC4 AXP23

Indirect Connection

N

T

PC4 AXP23

N

DD

© R.J.Meijer

Data Transport 2

T

N

D

DataTo From

PC4 AXP23

Indirect Connection

DataTo From

N

T

PC4 AXP23

N

DD

© R.J.Meijer

Data Transport 3

T

N

D

Indirect Connection

N

T

PC4 AXP23

N

D

Data12923

D

© R.J.Meijer

Data Transport 4

T

N

D

Indirect Connection

N

D 232

T

PC4 AXP23

N

DData23 1290111 1110232

© R.J.Meijer

Data Transport 5

T

N

D

Physical

Indirect Connection

N

D 232

T

PC4 AXP23

N

D

© R.J.Meijer

Data Transport 6

T

N

D

Indirect Connection

Data23 1290111 1110232

N

D 232

T

PC4 AXP23

N

D

© R.J.Meijer

Data Transport 7

T

N

D

Indirect Connection

N

T

PC4 AXP23

N

D

Data12923

D

© R.J.Meijer

Data Transport 8

T

N

D

Indirect Connection

N

T

PC4 AXP23

N

D

Data12923

D

© R.J.Meijer

Data Transport 9

T

N

D

Indirect Connection

N

T

PC4 AXP23

N

DData23 1290111 1110329D

© R.J.Meijer

Data Transport 10

T

N

D

Indirect Connection

N

Physical

T

PC4 AXP23

N

DD

© R.J.Meijer

Data Transport 11

T

N

D

Indirect Connection

N

T

D 329Data23 1290111 1110329

PC4 AXP23

N

D

© R.J.Meijer

Data Transport 12

T

N

D

Indirect Connection

N

T

PC4 AXP23

NData12923 N 23

D D

© R.J.Meijer

Data Transport 13

T

N

D

Indirect Connection

N

TDataTo From

PC4 AXP23

D

N

D

© R.J.Meijer

Data Transport 14

T

N

D

DataTo From

PC4 AXP23

DataTo From

PC4 AXP23

Indirect Connection

N

T

PC4 AXP23

D

N

D

© R.J.Meijer

Data Transport 15

T

N

D

OkTo From

PC4 AXP23

OkTo From

PC4 AXP23

Indirect Connection

N

T

PC4 AXP23

D

N

D

© 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

© R.J.Meijer

End-End connection

Presentation

Application

Session

Transport

Network

Data Link

Physical

Presentation

Application

Session

Transport

Network

Data Link

Physical

Application

Transport