Chapter 3 Transport Layer

Chapter 3 lift Layer

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Were making these slides freely available to all (faculty, students, readers). Theyre in PowerPoint form so you can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represent a roundabout of work on our part. In return for use, we only select the following: ? If you use these slides (e.g., in a class) in comfortably unaltered form, that you mention their source (after all, wed like wad to use our book!) ? If you post any slides in well unaltered form on a www site, that you note that they are adapted from (or perhaps identical to) our slides, and note our secure of this material. Thanks and enjoy! JFK/KWR each(prenominal) material copyright 1996-2009 J.F Kurose and K.W. Ross, All Rights Reserved

Computer Networking: A Top Down Approach fifth edition. Jim Kurose, Keith Ross Addison-Wesley, April 2009.





Transport Layer

3-1

Chapter 3: Transport Layer
Our goals: ? understand principles behind ecstasy layer services:
?

? learn about transport

layer protocols in the Internet:
?

?

? ?

multiplexing/demulti plexing reliable info transfer flow examine over-crowding controller

?

?

UDP: connectionless transport TCP: connection-oriented transport TCP congestion control

Transport Layer

3-2

Chapter 3 outline
? 3.1 Transport-layer ? 3.5 Connection-

services ? 3.2 Multiplexing and demultiplexing ? 3.3 Connectionless transport: UDP ? 3.4 Principles of reliable entropy transfer

oriented transport: TCP
? ? ? ?

segment structure reliable data transfer flow control connection management

? 3.6 Principles of

congestion control ? 3.7 TCP congestion control Transport Layer 3-3

Transport services and protocols
? provide logical communication

between app processes running on different hosts ? transport protocols run in end systems ? disperse side: breaks app messages into segments, passes to network layer ? rcv...If you want to get a full essay, order it on our website: Orderessay



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