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Application - PowerPoint PPT Presentation


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Application. Transport. Network. you are here. Link. Physical. Network host-to-host. Link node-to-node frame-by-frame. Physical node-to-node bit-by-bit. 101101001000100101010. Framing. Possible Link Layer Services. Shared Point-to-Point. Possible Link Layer Services.

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PowerPoint Slideshow about 'Application' - ciel


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Presentation Transcript
slide1

Application

Transport

Network

you are

here

Link

Physical

slide2

Network

host-to-host

Link

node-to-node

frame-by-frame

Physical

node-to-node

bit-by-bit

101101001000100101010

framing

Framing

Possible Link Layer Services

shared point to point

SharedPoint-to-Point

Possible Link Layer Services

flow control

Flow Control

Possible Link Layer Services

reliable unreliable

ReliableUnreliable

Possible Link Layer Services

error detection recovery

Error Detection & Recovery

Possible Link Layer Services

mac address

MAC Address

90:AF:F4:CA:BA:03

slide17

CRC

Cyclic Redundancy Check

slide18

d data bits

r CRC bits

slide19

d data bits

r CRC bits

r+1 bits G

= n x

slide20

d data bits

r CRC bits

r+1 bits G

= nx

slide22

D2rxor R = nG

d data bits

r CRC bits

r+1 bits G

= nx

shared point to point26

SharedPoint-to-Point

Different Link Layer Services