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Instructor:Roger H. BrownEmail:roger.brown@trincoll.eduOffice Location:157 MECVoice:Office Hours:Mon / Wed 2:30 – 3:30 pmFAX:Course WebPage: Description:A first course in computer communications which introduces the problems, solutions, and limitations associated with interconnecting computers by communication networks (LAN or WAN ). The seven layer ISO Open Systems Interconnection (OSI) reference model serves as a framework for the course with major emphasis on the physical layer standards, data link protocols, network and transportation layer protocols. Topics include: modems, baseband and broadband communications, HDLC, Ethernet and wireless LANs, cell and frame relay networks, bridges, routers, services of the upper layers (Session, Presentation, Application), and network security.Course Objectives:At the end of the course the student will understand:? Seven layer ISO Open Systems Interconnection (OSI) reference model? interconnecting computers by communication networks (LAN or WAN ).? Physical communication media: twisted pair and fiber optics? Data Link Layer protocols: error control, CRC? Data Link Layer utilization and efficiency? Ethernet LAN protocol and Ethernet Switches? Network Layer IPv4 Protocol? Network addressing and routing? Host to Host communications and flow control.? Transport Layer TCP Protocol? Privacy and authentication? Basics of Session, Presentation, and Application Layer ProtocolsText:Stallings, William Data and Computer Communications, 10th EditionPrentice Hall, 2013, ISBN-10: 0133506487 ? ISBN-13:?9780133506488?2014 Assignment1 1/21 Introduction to Computer Networks Chapters 1 & 2 OSI Reference Model: A Layered ApproachIntro to TCP/IP Protocol Suite2 1/26 Transmission MediaChapters 4 UTP, STP, Coax, fiber, WirelessNoise and Attenuation (Decibels)3 1/28 Digital Signaling Chapters 5Digital EncodingNRZ, NRZI, AMI, 4B5B, 8B10B, 8B6TCharacter and Bit SynchronizationLectureDateTopic Reading Assignmen4 2/2 Analog Signaling Chapters 5Signal Modulation, ModemsBandwidth Requirements: Nyquist and Shannon Limits, Fourier Analysis4 2/4 Layer 2 and Frame Format Chapters 5 & 6Bit and Frame SynchronizationError?Detection and CRC Polynomial Codes3 2/9 Data Link Control Protocols (Part 1) Chapter 6 & 7Error Detection and CRC Polynomial CodesStop & Wait, Sliding Window ARQ4 2/11 Data Link Control Protocols (Part 2) Chapter 6 & 7 Go-back-N, Selective RejectHigh-Level Data Link Control (HDLC)5 2/16 Multiplexing and Data Switching Chapter 8Frequency and Time Division MultiplexingADSL, xDSL, Cable Modems5 2/18 Packet Switching Chapter 8, 10 & 11Packet Switching PrinciplesVirtual Circuits and Datagrams5 2/23 Digital Switching Chapter 9Digital Switching ConceptsFrame and Cell Relay62/25Layer 3 Routing (Part 1)Chapter 19Bellman-Ford AlgorithmDistance Vector Method63/2Layer 3 Routing (Part 2)Chapter 19Dijkstra AlgorithmLink State Method63/4Review of Previous Lectures, Open Q&A 63/9Mid-Term Exam 73/11Local Area Networks (LAN) Chapter 11 & 12 Topologies, Media, Medium Access Control MAC Layer, IEEE 802.3, 802.5 StandardsMarch 15 - 21 Spring Vacation - No classes this week.8 3/23Ethernet ?IEEE 802.3Chapter 128 3/25Fast and Wireless EthernetChapters 12 & 138 3/30Layer 2 Switches & Bridges Chapter 118 4/1Spanning Tree AlgorithmChapter 11 & Appendix JFlat LAN Design and Virtual LANs9 4/6 Internetworking Chapter 14Routing for Packets versus CircuitsInternet IP9 4/8 Internetworking Chapter 19Routers, Firewalls and Gateways10 4/13Transport Protocols Chapter 15TCP/IP and TP4/CLNP10 4/15Transport Protocols Chapters 15 & 20TCP TimeoutHost to Host Flow Control11 4/20Privacy and AuthenticationChapter 26, Appendix Q11 4/22IPSec, TLS, httpChapter 2711 4/27Network ApplicationsChapter 24SMTP, DNS, http11 4/27Final Review May 3 - 9 Final Exam WeekHomeworkHomework will normally be assigned each week. Late homework will NOT be graded - no exceptions. You can expect approx. 10 homework sets. Your total homework score will be based on the highest homework scores. I will throw out (forgive) the two lowest scores.ExamsThere will be a mid-term and final exam:March 9Mid-Term Exam Open Text Book (Stallings), your personal notes & handouts (obviously). Covers all material presented in Lectures 1-12, assigned reading, and associated handouts. May 3 - 9Final ExamOpen Text Book (Stallings), your personal notes & handouts. Covers all material presented in Lectures 1 - 26 (with more emphasis on lectures 15 - 29, assigned reading, and associated handouts. Final Course Grade DeterminationThe course grade is based on a weighted sum of the computed Z-scores for the homework sets and the mid-term and final exams:Grade = 20% (Homework Avg.) + 35% (Mid-Term Exam) + 45% (Final Exam)A Z-score is computed as follows:Exam Z-score = [(your test score) - (mean or median test score)] / Std. DeviationNote: A mean score is normally used. However, a median score will be used if there exists an abnormally high or low score.Z-scores greater than +1.00 = A+, A, or A-; less than -1.00 = C+, C or C-, D; -1.00 < Z < +1 = B+, B , or B- (at least)Academic IntegrityStudent-teacher relationships are built on trust. For example, students must trust that teachers have made appropriate decisions about the structure and content of the courses they teach, and teachers must trust that the assignments which students turn in are their own. Acts, which violate this trust, undermine the educational process.The Student Handbook defines various forms of Intellectual Honesty or dishonesty and procedures for responding to them. All forms are violations of the trust between students and teachers. Students should familiarize themselves with the Trinity College Student Handbook. ................
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