Computer Network Chapter 5-Transport Layer Study Notes

Others 2020-10-28 05:54:30 views: null

5.1 Overview of Transport Layer Protocol

5.1.1 Communication between processes

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  • Why do you need a transport layer?
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  • The main difference between transport layer protocol and network layer protocol
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5.1.2 Two protocols in the transport layer

UDP
TCP
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5.1.3 Port

Use the port to uniquely identify the application process.
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5.2 User Datagram Protocol UDP

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5.3 Transmission Control Protocol TCP

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  • Socket
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5.4 Working principle of reliable transmission

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    disadvantage of the stop-and-wait protocol is that the channel utilization is too low.
    The improvement method is to use pipeline transmission.
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  • Continuous ARQ protocol
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5.6 Realization of TCP reliable transmission

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5.7 TCP flow control

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  • Solutions to two problems
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5.8 TCP congestion control

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  • Slow start and congestion avoidance
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  • Fast retransmission and fast recovery
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5.9 TCP transport connection management

  • Three-way handshake when TCP connection is established
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  • Four waves when TCP disconnects
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Origin blog.csdn.net/weixin_43655282/article/details/108133738
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