Lecture-06 - Lecture #06 Todays Lecture Objectives Data...

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Unformatted text preview: Lecture #06 Todays Lecture Objectives Data Link Layer Channel efficiency PPP as an example of a point-to-point protocol Transmit/ACK Cycle Time to think about delivering a packet across a single hop on a very small time scale. ven across a point oint link, we need Even across a point-to-point link, we need to think about when we can transmit and when we have to wait Comm Types Across Different Media Simplex: Communication in only one direction Some satellite system Half-duplex: one side gets to transmit at a time Like a walkie-talkie Note: some definitions confuse simplex with half-duplex Full-duplex: multiple stations (typically two) can transmit at the same time Requires send and receive capability Somewhat like a telephone, but not quite Transmit/ACK Cycle Time to get the frame on the wire Propagation time from source to receiver Time to process the frame Time to send the ACK Propagation time from receiver to source Time to process the ACK Channel Efficiency...
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This note was uploaded on 02/19/2012 for the course ENGR 361 taught by Professor Drexel during the Spring '12 term at Bloomsburg.

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Lecture-06 - Lecture #06 Todays Lecture Objectives Data...

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