OSI &TCP/IP Layer - PowerPoint PPT Presentation

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OSI &TCP/IP Layer

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Omid Mehdi – PowerPoint PPT presentation

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Title: OSI &TCP/IP Layer


1

Cisco Certified Network Associate (CCNA)
Tomorrow Starts Here
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

2
OSI Model

(Open System Interconnect) By ISO 1984
Application
Application
Presentation
Presentation
Session
Session
Transport
Transport
Network
Network
Data Link
Data Link
Physical
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

3
Sending Data

Application
Message
Presentation
Session
  • User Interface
  • Data Unit Message

Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

4

Sending Data
Application
Message
Presentation
  • Translation
  • Translate Received Data from Application to Some
    Format
  • Encryption Compression
  • Data Units Message

Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

5

Sending Data
Application
Message
Presentation
  • Initiate , Maintain and end Session
  • Check Points
  • Data Units Message

Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

6
Sending Data

Application
Presentation
  • Segmentation

Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

7
Sending Data
  • Segmentation
  • Flow Control
  • Error Handing
  • Segment Sequencing
  • Service Addressing
  • TCP UDP
  • Data Units Segment

Application
Presentation
Session
Transport
Segment
HL4
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

8
Sending Data
  • Addressing
  • Routing
  • IP Address
  • Routers
  • Data Units Packet

Application
Presentation
Session
Packet
Transport
HL3
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

9
Sending Data
  • Physical Addressing
  • Mac Address
  • Error Checking
  • Switch
  • Data Units Frame

Application
Presentation
Session
Frame
Transport
TL2
HL2
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

10

Sending Data
Application
Presentation
Session
Transport
  • Hardware
  • Bit
  • Signal

Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

11

Receiving Data
Application
Presentation
Session
Transport
Signal
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

12

Receiving Data
Application
Presentation
Session
Frame
Transport
TL2
HL2
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

13

Receiving Data
Application
Presentation
Session
Packet
Transport
HL3
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

14

Receiving Data
Application
Presentation
Session
Transport
Segment
HL4
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

15

Receiving Data
Application
Presentation
Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

16

Receiving Data
Application
Message
Presentation
Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

17

Receiving Data
Application
Message
Presentation
Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

18

Receiving Data
Application
Message
Presentation
Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

19

Encapsulate
Decapsulate
Application
Presentation
Session
Transport
Network
Data Link
Physical
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com

20
Comparing OSI TCP/IP

TCP/IP
OSI
TCP/IP
Application
Application
Application
7
5-7
Presentation
6
Session
5
Transport
Transport
Transport
4
4
Network
Internet
Network
3
3
Data Link
Link
Data Link
2
2
Physical
Physical
1
1
  • Instructor Omid Mehdi
    mr.OmidMehdi_at_gmail.com
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