Welcome to

1
Welcome to
CIS 5930 Internet Protocols
Time 515PM-630PM, TTh Location Love 301 Fall
2004, 3 credits
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Who am I?
Zhenhai Duan Assistant Professor Department of
Computer Science Florida State University Researc
h areas computer networks and multimedia
applications. Office Love 165 Phone
645-1561 Email duan_at_cs.fsu.edu URL
http//www.cs.fsu.edu/duan
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Office Hours

• Love 165
• 400 PM 500 PM, TTh,
• or by appointments
• You can send me email regarding this course
• Subject CIS 5930

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What is This Course about?

• Understanding how TCP/IP is implemented in real
  systems by
• Studying the design and implementation in a
  popular system (Linux)
• Hands-on project
• Getting some sense of general networking research
  issues by
• Paper reading and critique

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Course Prerequisites

• Two key prerequisites
• Familiar with TCP/IP protocol and general
  networking concepts
• CEN5515 Data and Computer Communications or
  equivalent courses
• Comfortable with Unix/C programming
• COP5570 Advanced Unix Programming or equivalent
  courses
• Talk with me if you are not sure.
• Willing to learn and work hard

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Textbooks

• Required
• The Linux Networking Architecture Design and
  Implementation of Network Protocols in the Linux
  Kernel. ISBN 0-13-177720-3
• Optional
• TCP/IP Illustrated, Volume 1 and 2. ISBN
  0-201-63346-9, 0-201-63354-X
• Advanced Programming in the Unix Environment.
  ISBN 0-201-56317-7
• Unix Network Programming The Sockets Networking
  API, Volume 1. ISBN 0-13-141155-1

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Class Information

• Class website
• http//www.cs.fsu.edu/duan/classes/CIS5930_Fall04
  /cis5930.htm
• Announcement page
• Check this page regularly

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Course Requirements

• Do assigned readings
• Be prepared read textbook/lectures before class
• Attend and participate in class activities
• Please ask and answer questions in (and out of)
  class
• Lets try to make the class interactive and fun!
• Workload
• 4 homework assignments 20 (5 each)
• Project 60
• Final exam 20

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Policies and Guidelines

• Late assignment policy
• 20 penalty for hand-in no more than 48 hours
  late.
• Zero if longer than 48 hours
• No make-up exam
• unless proof of emergency
• Incomplete, not granted
• unless proof of emergency
• Scholastic behaviors
• You are encouraged to study in groups, but do
  your work independently
• Acknowledge reference/credits if receive help
• Academic Honor Code enforced

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Important Dates
Assignment 1 9/9 (in class)
Assignment 2 9/30 (in class)
Assignment 3 10/28 (in class)
Assignment 4 11/25 (in class)
Project, phase 1 10/14 (midnight), demo 10/15 (10AM-3PM)
Project, phase 2 12/2 (midnight), demo 12/3 (10AM-3PM)
Final 12/9, 530PM-730PM
Email Subject CIS 5930, assignment ID/project
phase
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Four Homework Assignments

• First architectural principles of Internet, 3
  papers
• Second routing table lookup, 3 papers
• Third general routing issues, 4 papers
• Fourth overlays and peer-to-peer systems, 4
  papers
• All papers are online. Read early
• Some guidelines on the report
• Up to two pages
• What are the main points of the papers
• What do you like/dislike the paper
• If you work on the same subject, what you may do
  to improve the paper?
• Inspirations from the papers
• Others

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The Project

• Phase 1 transparent bridges, IP, ARP, UDP
• Phase 2 TCP, OSPF
• Some guidelines on the report
• What components/functionalities you have
  implemented
• Briefly describing the main functions
• Journey of the implementation, what you do first,
  second, etc.
• Difficulties encountered and how you solve them

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The Project (Contd)

• Now, let us talk about the project
• Link to the project

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Three network components

• Stations
• End user systems, like your workstation/PC
• Sending/receiving packets
• Routers
• Forwarding data packets
• Bridges
• LAN device connects routers/stations on the same
  LAN.

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Network emulations

• Stations/routers/bridges are all software-based.
• Physical links/medium are emulated using a
  reliable TCP connection

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Emulations

• Using a client/server model
• Bridges serve as servers
• You first start the bridges, which inform others
  their IP address/port number (real IP address of
  the machine on which a bridge is started).
• .lan-name.addr
• .lan-name.port
• You then start stations/routers. Stations/routers
  look for the IP address/port number information
  of the corresponding bridge (server), and using
  socket to connect to it.

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Suggested running interface

• Stations
• station no interface routing_table host_name
• Interface, routing_table, and host_name are all
  files
• Routers
• station route interface routing_table host_name
• Interface, routing_table, and host_name are all
  files
• Bridges
• bridge lan-name num-ports
• lan-name is the name of the LAN
• Num-ports is the maximum number of ports the
  bridge has (maximum stations/routers connected to
  the bridge)

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Tips for doing well

• Realize what is involved
• Stay current
• Ask questions
• Get feedbacks
• Use different learning strategies
• Knowing what to expect from exams
• Persist
• Check out http//www.iss.stthomas.edu/studyguides/

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Questions and Concerns?