Chapter2 - Chapter 2 Application Layer A note on the use of these ppt slides We're making these slides freely available to all(faculty students

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2: Application Layer 1 Chapter 2 Application Layer Computer Networking: A Top Down Approach, 4 th edition. Jim Kurose, Keith Ross Addison-Wesley, July 2007. A note on the use of these ppt slides: We’re making these slides freely available to all (faculty, students, readers). They’re 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 lot of work on our part. In return for use, we only ask the following: If you use these slides (e.g., in a class) in substantially unaltered form, that you mention their source (after all, we’d like people to use our book!) If you post any slides in substantially unaltered form on a www site, that you note that they are adapted from (or perhaps identical to) our slides, and note our copyright of this material. Thanks and enjoy! JFK/KWR All material copyright 1996-2007 J.F Kurose and K.W. Ross, All Rights Reserved With a few changes/additions by B.D. Davison, 2007.
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2: Application Layer 2 Chapter 2: Application layer 2.1 Principles of network applications 2.2 Web and HTTP 2.3 FTP 2.4 Electronic Mail SMTP, POP3, IMAP 2.5 DNS 2.6 P2P Applications 2.7 Socket programming with TCP 2.8 Socket programming with UDP
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2: Application Layer 3 Chapter 2: Application Layer Our goals: conceptual, implementation aspects of network application protocols transport-layer service models client-server paradigm peer-to-peer paradigm learn about protocols by examining popular application-level protocols HTTP FTP SMTP / POP3 / IMAP DNS programming network applications socket API
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2: Application Layer 4 Some network apps e-mail web instant messaging remote login P2P file sharing multi-user network games streaming stored video clips voice over IP real-time video conferencing grid computing
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2: Application Layer 5 Creating a network app write programs that run on (different) end systems communicate over network e.g., web server software communicates with browser software little software written for devices in network core network core devices do not run user applications applications on end systems allows for rapid app development, propagation application transport network data link physical
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2: Application Layer 6 Chapter 2: Application layer 2.1 Principles of network applications 2.2 Web and HTTP 2.3 FTP 2.4 Electronic Mail SMTP, POP3, IMAP 2.5 DNS 2.6 P2P file sharing 2.7 Socket programming with TCP 2.8 Socket programming with UDP
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2: Application Layer 7 Application architectures Client-server Peer-to-peer (P2P) Hybrid of client-server and P2P
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2: Application Layer 8 Client-server architecture server: always-on host permanent IP address server farms for scaling clients: communicate with server may be intermittently connected may have dynamic IP addresses do not communicate directly with each other client/server
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This note was uploaded on 08/06/2008 for the course CSE 342 taught by Professor Davison during the Fall '07 term at Lehigh University .

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Chapter2 - Chapter 2 Application Layer A note on the use of these ppt slides We're making these slides freely available to all(faculty students

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