Trinity College • Dept. of Computer Science
CPSC-333 Computer Networks
Spr 2015
Mon/Wed 1:15 – 2:30 pm
Instructor:
Office Location:
Office Hours:
Course WebPage:
Roger H. Brown
Email: roger.brown@trincoll.edu
157 MEC
Voice:
Mon / Wed 2:30 – 3:30 pm
FAX:
http://moodle.trincoll.edu/course/view.php?id=8008
Course 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 Protocols
Text:
Stallings, William
Data and Computer Communications, 10th Edition
Prentice Hall, 2013, ISBN-10: 0133506487 • ISBN-13: 9780133506488©2014
http://williamstallings.com/DataComm/
Lecture
Date
Topic
Reading Assignment
1
1/21
Introduction to Computer Networks
OSI Reference Model: A Layered Approach
Intro to TCP/IP Protocol Suite
Chapters 1 & 2
2
1/26
Transmission Media
UTP, STP, Coax, fiber, Wireless
Noise and Attenuation (Decibels)
Chapters 4
3
1/28
Digital Signaling
Digital Encoding
NRZ, NRZI, AMI, 4B5B, 8B10B, 8B6T
Character and Bit Synchronization
Chapters 5
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Trinity College • Dept. of Computer Science
CPSC-333 Computer Networks
Spr 2015
Mon/Wed 1:15 – 2:30 pm
Lecture
Date
Topic
4
2/2
Analog Signaling
Chapters 5
Signal Modulation, Modems
Bandwidth Requirements:
Nyquist and Shannon Limits, Fourier Analysis
4
2/4
Layer 2 and Frame Format
Bit and Frame Synchronization
Error Detection and CRC Polynomial Codes
Chapters 5 & 6
3
2/9
Data Link Control Protocols (Part 1)
Error Detection and CRC Polynomial Codes
Stop & Wait, Sliding Window ARQ
Chapter 6 & 7
4
2/11
Data Link Control Protocols (Part 2)
Go-back-N, Selective Reject
High-Level Data Link Control (HDLC)
Chapter 6 & 7
5
2/16
Multiplexing and Data Switching
Frequency and Time Division Multiplexing
ADSL, xDSL, Cable Modems
Chapter 8
5
2/18
Packet Switching
Packet Switching Principles
Virtual Circuits and Datagrams
Chapter 8, 10 & 11
5
2/23
Digital Switching
Digital Switching Concepts
Frame and Cell Relay
Chapter 9
6
2/25
Layer 3 Routing (Part 1)
Bellman-Ford Algorithm
Distance Vector Method
Chapter 19
6
3/2
Layer 3 Routing (Part 2)
Dijkstra Algorithm
Link State Method
Chapter 19
6
3/4
Review of Previous Lectures, Open Q&A
6
3/9
Mid-Term Exam
7
3/11
Local Area Networks (LAN)
Topologies, Media, Medium Access Control
MAC Layer, IEEE 802.3, 802.5 Standards
March 15 - 21
Spring Vacation - No classes this week.
8
Ethernet IEEE 802.3
3/23
Reading Assignmen
Chapter 11 & 12
Chapter 12
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Trinity College • Dept. of Computer Science
CPSC-333 Computer Networks
Spr 2015
Mon/Wed 1:15 – 2:30 pm
8
3/25
Fast and Wireless Ethernet
Chapters 12 & 13
8
3/30
Layer 2 Switches & Bridges
Chapter 11
8
4/1
Spanning Tree Algorithm
Flat LAN Design and Virtual LANs
Chapter 11 & Appendix J
9
4/6
Internetworking
Routing for Packets versus Circuits
Internet IP
Chapter 14
9
4/8
Internetworking
Routers, Firewalls and Gateways
Chapter 19
10
4/13
Transport Protocols
TCP/IP and TP4/CLNP
Chapter 15
10
4/15
Transport Protocols
TCP Timeout
Host to Host Flow Control
Chapters 15 & 20
11
4/20
Privacy and Authentication
Chapter 26, Appendix Q
11
4/22
IPSec, TLS, http
Chapter 27
11
4/27
Network Applications
SMTP, DNS, http
Chapter 24
11
4/27
Final Review
May 3 - 9 Final Exam Week
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Trinity College • Dept. of Computer Science
CPSC-333 Computer Networks
Spr 2015
Mon/Wed 1:15 – 2:30 pm
Homework
Homework 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.
Exams
There will be a mid-term and final exam:
March 9
Mid-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 - 9
Final Exam
Open 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 Determination
The 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. Deviation
Note: 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 Integrity
Student-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.
http://www.trincoll.edu/SiteCollectionDocuments/StudentHandbook.pdf
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