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Lectures Computer networking تمرین 3 نمره. پژوهش عملیاتی 2 نمره.

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Presentation on theme: "Lectures Computer networking تمرین 3 نمره. پژوهش عملیاتی 2 نمره."— Presentation transcript:

1 Lectures Computer networking تمرین 3 نمره. پژوهش عملیاتی 2 نمره.
پایان ترم 15 نمره. غیبت فقط 15 نمره پایان ترم 9/18/2018 Hajrasouliha_2015

2 9/18/2018 Hajrasouliha_2015

3 Protocol layers, Service models
Lecture 4 Protocol layers, Service models 9/18/2018 Hajrasouliha_2015

4 OSI Versus TCP/IP 1.5 Protocol layers, Service models
The Roadmap Continues 1.5 Protocol layers, Service models OSI Versus TCP/IP 9/18/2018 Hajrasouliha_2015

5 First :Why networks need Layering Methods?
En/Farsi Fr/Dutch OLLA OLLA OLLA 9/18/2018 Hajrasouliha_2015

6 9/18/2018 Hajrasouliha_2015

7 9/18/2018 Hajrasouliha_2015

8 9/18/2018 Hajrasouliha_2015

9 9/18/2018 Hajrasouliha_2015

10 9/18/2018 Hajrasouliha_2015

11 9/18/2018 Hajrasouliha_2015

12 9/18/2018 Hajrasouliha_2015

13 9/18/2018 Hajrasouliha_2015

14 To Recap OSI Services: What is known as: Datagrams are called:
9/18/2018 Hajrasouliha_2015

15 : How 2 Apps Communicate across the Layers? 9/18/2018
Hajrasouliha_2015

16 What is present at each Layer?
: 9/18/2018 Hajrasouliha_2015

17 How to remember OSI Layers?
: 9/18/2018 Hajrasouliha_2015

18 Internet protocol stack
application: supporting network applications FTP, SMTP, HTTP transport: process-process data transfer TCP, UDP network: routing of datagrams from source to destination IP, routing protocols link: data transfer between neighboring network elements Ethernet, i (WiFi), PPP physical: bits “on the wire” application transport network link physical Introduction

19 2 1 TCP/IP defined in 2 versions: application transport network link
physical 2 1 Introduction

20 Protocols and TCP/IP Layers
9/18/2018 Hajrasouliha_2015

21 Protocols and TCP/IP Layers
9/18/2018 Hajrasouliha_2015

22 Protocols and TCP/IP Layers
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23 Protocols and TCP/IP Layers
9/18/2018 Hajrasouliha_2015

24 Protocol Data Units 9/18/2018 Hajrasouliha_2015

25 Protocol Data Units 9/18/2018 Hajrasouliha_2015

26 Protocol Data Units 9/18/2018 Hajrasouliha_2015

27 Protocol Data Units 9/18/2018 Hajrasouliha_2015

28 Protocol Data Units 9/18/2018 Hajrasouliha_2015

29 Protocol Data Units 9/18/2018 Hajrasouliha_2015

30 Protocol Data Units 9/18/2018 Hajrasouliha_2015

31 Layer Addressing 9/18/2018 Hajrasouliha_2015

32 Layer Addressing 9/18/2018 Hajrasouliha_2015

33 Layer Addressing 9/18/2018 Hajrasouliha_2015

34 Layer Addressing 9/18/2018 Hajrasouliha_2015

35 Layer Addressing 9/18/2018 Hajrasouliha_2015

36 Layer Devices 9/18/2018 Hajrasouliha_2015

37 Layer Devices 9/18/2018 Hajrasouliha_2015

38 Layer Devices 9/18/2018 Hajrasouliha_2015

39 Layer Devices 9/18/2018 Hajrasouliha_2015

40 Layer Devices 9/18/2018 Hajrasouliha_2015

41 Layer Devices 9/18/2018 Hajrasouliha_2015

42 How to remember OSI Layers?
9/18/2018 Hajrasouliha_2015

43 TCP/IP defined in 2 versions Versus OSI
9/18/2018 Hajrasouliha_2015

44 PDU Summary: 9/18/2018 Hajrasouliha_2015

45 Addressing Summary: 9/18/2018 Hajrasouliha_2015

46 Device Summary: 9/18/2018 Hajrasouliha_2015

47 Encapsulation Summary through all layers
source Encapsulation Summary through all layers message M application transport network link physical segment Ht M Ht datagram Ht Hn M Hn frame Ht Hn Hl M link physical switch destination network link physical Ht Hn M Ht Hn Hl M M application transport network link physical Ht Hn M Ht M Ht Hn M router Ht Hn Hl M Introduction

48 Protocol layers, Service models
End of Lecture 4 Protocol layers, Service models 9/18/2018 Hajrasouliha_2015

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