poster2 - Chapter 3 Quick Review on Data Link Layer...

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1 Chapter 3 Quick Review on Data Link Layer Jonathan C.L. Liu, Ph.D. Department of Computer, Information Science and Engineering (CISE), University of Florida
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2 Functions of the Data Link Layer Provide service interface to the network layer Dealing with transmission errors Regulating data flow Slow receivers not swamped by fast senders
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3 Services Provided to Network Layer (a) Virtual communication. (b) Actual communication.
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6 Bit Stuffing (a) The original data. (b) The data as they appear on the line. (c) The data as they are stored in receiver’s memory after de-stuffing.
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9 Elementary Data Link Protocols An Unrestricted Simplex Protocol A Simplex Stop-and-Wait Protocol A Simplex Protocol for a Noisy Channel
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10 Unrestricted Simplex Protocol
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11 Simplex Stop-and- Wait Protocol
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12 For a Noisy Channel A positive acknowledgement with retransmission protocol. Continued
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13 For a Noisy Channel (2) A positive acknowledgement with retransmission protocol.
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14 Sliding Window Protocols A One-Bit Sliding Window Protocol A Protocol Using Go Back N A Protocol Using Selective Repeat
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15 One-Bit Sliding Window Protocol Continued
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16 One-bit SWP (2)
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19 Simulation of multiple timers in software.
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Dynamic Channel Allocation Station Model. Single Channel Assumption.
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