Chapter1-helmy-F09

Chapter1-helmy-F09 - CNT 5106C Computer Networks Ahmed...

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Introduction 1-1 CNT 5106C Computer Networks Ahmed Helmy Computer & Information Science & Engineering (CISE) Dept University of Florida http://www.cise.ufl.edu/~helmy
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Introduction 1-2 Course Outline 5 homeworks (20%) + ~2 experiments/mini-projects (10%) + 2 exams (mid-term & final exam) 1 mid-term (30%) covering 1 st half of semester Internet Architecture & Analysis, Layering, Multiplexing, Applications, Transport, Congestion Control, MAC protocols (partial !) [based on progress] Final exam (40%) covering 2nd half MAC protocols (partial), Wireless and Mobile Networking, Routing (unicast revision, multicast) 1 required text book (Kurose, Ross…) Lecture slides: altered version of book slides + supp. Materials & notes as needed
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Introduction 1-3 (Open) Questions to think about: Throughout the semester we can ask the following questions about the functionality, design and analysis of the Internet: What do you like about the Internet? What do you not like about the Internet and would want to change? How would you change it and how would you achieve such change? How would you evaluate the effects of your change (positive and negative)?
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Introduction 1-4 Intro & Motivation What’s the Internet to you? Web browsers, wireless Internet Cafés, cellular phones!, home networks, networked cars (vehicular), networked embedded devices, inter-planetary networks (DTNs)?… Very complex, time varying, hard to capture ! Why study the Internet? To learn engineering lessons from history Analyze today’s problems and improve performance Provide future designs for better Internet and new architectures and applications Is the Internet the only form of computer networking? (open question)
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Introduction 1-5 Topics (Chapters) to Cover From main text book (Kurose, Ross) Ch1: Overview, Intro Ch2: Applications Ch3: Transport Layer Ch4: Network Layer Ch5: Link Layer, MAC, LANs Ch6: Wireless, Mobile Networks Ch7: Multimedia [partial: Diffserv, Intserv] Ch8: Security [partial] Notes: Ordering maybe slightly modified as semester progresses. Personal notes, additions will be provided by Prof. as needed.
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Introduction 1-6 Chapter 1 Computer Networking: A Top Down Approach , 4 th edition. Jim Kurose, Keith Ross Addison-Wesley, July 2007.
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Introduction 1-7 Chapter 1: Introduction Overview: what’s the Internet? what’s a protocol? network edge; hosts, access net, physical media network core: Internet structure protocol layers, service models network core: packet/circuit switching, performance: loss, delay, throughput security history
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Introduction 1-8 Chapter 1: roadmap 1.1 What is the Internet? 1.2 Network edge end systems, access networks, links 1.3 Network core circuit switching, packet switching, network structure 1.4 Delay, loss and throughput in packet-switched networks 1.5 Protocol layers, service models 1.6 Networks under attack: security 1.7 History
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Introduction 1-9 What’s the Internet: “nuts and bolts” view millions of connected computing devices: hosts = end systems
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Chapter1-helmy-F09 - CNT 5106C Computer Networks Ahmed...

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