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Waiting for task. KüldésFogadás  Send Receive. Getting data to send from higher layer......

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Presentation on theme: "Waiting for task. KüldésFogadás  Send Receive. Getting data to send from higher layer......"— Presentation transcript:

1 Waiting for task. KüldésFogadás  Send Receive

2 Getting data to send from higher layer......

3 Forming the frame......

4 Number of trials is zero. (N = 0).....

5 Is the channel busy? IgenNem..... YesNo

6 Waiting the gap time. 

7 Starting transmission. During collision detection. Ütközés történtSikeres átvitel..... Collision occursNo collision

8 Indicating successful transmission to higher layer......

9 Waiting for task. KüldésFogadás Send Receive 

10 Sending jam signal......

11 Number of trials increased. (N = N + 1).....

12 Is number of trials 16? (N = 16 ?) IgenNem YesNo

13 Indicationg the unsuccessful transmitting to higher layer......

14 Waiting for task. KüldésFogadás Send Receive 

15 N < 10 ? IgenNem YesNo

16 Delay time: Random between 0 – (2 N -1) unit......

17 Waiting the delay time. 

18 Is the channel busy? IgenNem..... NoYes

19 Delay time: Random betweem 0 – ( ) unit......

20 Waiting the delay time. 

21 Is the channel busy? IgenNem..... NoYes

22 Synchronization. Waiting for the start of frame......

23 Is the frame length and CRC OK? IgenNem NoYes

24 Is the destination address equal to mine or is it broadcast? IgenNem YesNo

25 Discard the frame!.....

26 Waiting for task. KüldésFogadás Send Receive 

27 Give the data field of frame to higher layer!.....

28 Waiting for task. KüldésFogadás Receive Send 


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