Note for Fall 2020:

Starting in Fall 2020 the pre-requisite for CSCI-4220 is CSCI-4210 Operating Systems. YACS and the 2019-2020 Academic Calendar will not reflect this, but SIS correctly will require CSCI-4210. If you have ECSE-2660 you can register with instructor's permission.

CSCI-4220 Network Programming Syllabus

Instructor: Buster Holzbauer ()

Graduate TA: Saksham Chawla ()
Evan Maicus ()

Office Hours:
Winona + Gabriel: Tue 1-3pm Amos Eaton 127
Saksham + Winona: Wed 10a-noon Amos Eaton 118
Instructor: M/Th 3:30-4:00pm Amos Eaton 205

Class Times: Tu/F 10-11:50am LOW 4050

Undergraduate Mentors:

Submitty Link:

Like the Constitution, this syllabus should be considered a "living document" in that it is subject to change. You will be notified of any changes made.

Pre-requisites: CSCI 2300 Intro to Algorithms; CSCI 2500 Computer Organization or equivalent

About the Course: Programming with an overview of the principles of computer networks, including an overview of the OSI reference model and various popular network protocol suites. Concentration on Unix interprocess communication (IPC), network programming using TCP and UDP, as well as client-side and mobile programming. Programming projects in C++ are required.

Some "lecture" days will actually be a full lab day. Accompanying documents will be available via Submitty. Students should bring their laptops on those days as they will be required for the lab portion.


The grades will be broken down as follows:

Grades will be curved, and approximate cutoffs for A-, B-, C-, and D will be kept up to date throughout the semester via Rainbow Grades on Submitty. Grade modifiers will be used in this class. See the course catalog for more details. There is no A+ nor is a D- allowed under the RPI Grade Modifier Policy.

Grade disputes must be made within 10 days. After 10 days have elapsed, the grade on record will stand.

Attendance: Attendance at lectures is not required, but be aware that I may include material not necessarily covered in the text or on the web page. You are responsible for all announcements made in lecture (e.g., any change in due dates). On days marked on the schedule as "Lab Day", labs are due by the end of the period.

Late Assignments Policy: Five late days are permitted for assignments across the semester (max of 3 per assignment). They will be consumed in whole day increments. In other words, if you are one hour late, that will count as one day. 25 hours late will count as two days, etc. Once these are exhausted, late assignments will not be graded. For team assignments all team members will be charged the late days.

Late Labs Policy: Late labs will not be accepted. Your lowest 3 lab scores will be dropped.

Required Textbook: Unix Network Programming, Volume 1: The Sockets Networking API, 3rd Edition (2003), by W. Richard Stevens et al [Amazon]

Assignment Grading Criteria: Your submission must include the following items:

Programming assignments are graded as follows: 25% for proper comments (e.g., each function should indicate what it does) and 75% for a correct working implementation. We typically divide the correctness points over key functions working. For example, reading -- worth 20 points, writing -- worth 20 points, and then doing the calculation correctly -- worth 35 points. Note that programs that either don't compile or generate a core dump typically get no more than 20 points of the 75. Thus, your max score for a "properly commented" program that fails in some fundamental way is only 45 points even if you spent 100 hours of time on it.

Compatibility: All assignments MUST compile with clang/clang++ and run on Ubuntu 18.04. This is the compiler and operating system on Submitty so you will have no problems meeting this requirement. It is worth noting that not all valid C programs are valid C++ programs. All C files must compile cleanly with clang++. Be careful when using C library calls to not rely on undefined behaviors.

Accomodations: Federal law requires all colleges and universities to provide specified types of assistance to students with disabilities. If you require such assistance, please obtain an authorizing memo from Disability Services for Students by contacting the Student Health Center. Information about a student's special needs will be treated as confidential. Please submit a copy of your authorizing memo to your professor well in advance of any affected exam or assignment. Failure to do so may result in a lack of special accommodations.

Academic Integrity: While I strongly encourage you to form study groups and work together in learning this material, programming assignments are to be done individually unless otherwise noted by the assignment/project specification. What this means is that you should do whatever is necessary to ensure your work remains your work. If during in the grading process, it is determined that students shared or duplicated work, those students will automatically score a zero for the offense. For a second offense, the student or students involved will fail this course and a report will be sent to the Dean of Students office which could result in additional disciplinary action. Additionally, undergraduates offenders cannot mentor in the future. In the event a graduate student is caught cheating, that student will fail.

Learning Outcomes: By the end of this course, you will be able to:

Schedule: This will be updated as the semester progresses:

8/30History / OSI model; Unix commands
9/6High level UDP and TCP/IP; UDP sockets
9/10Lab Day (Lab 1)
9/13tftp; Sorcerer’s Apprentice, Linux basics, C system calls, fork
9/17Signals, misc. inet functions, TCP sockets (SOCK_STREAM), Client / server model, Daemons
9/20Lab Day (Lab 2)
9/24select (I/O Multiplexing)
9/27Lab Day (Lab 3)
10/1Extra Lab Day (Lab 3)
10/4TCP Conceptually
10/11Lab Day (Lab 4)
10/15Non-Blocking I/O
10/18Application Layer Protocols; Telnet; FTP
10/22Lab Day (Lab 5)
10/29IPv4/IPv6 addressing, DNS, gethost*(), nslookup
11/1Lab Day (Lab 6)
11/8Lab Day (Lab 7)
11/12Bit Torrent/ DHT / P2P / Kademlia
11/15Security Basics I
11/22Lab Day (Lab 8)
11/26Security Basics II / SSL
12/3Socket Options
12/6Lab Day (Lab 9)
12/10"Buffer" day / Buffer Bloat(?)

Schedule of Assignments and altered class days:
This will be updated as the semester progresses.

All due dates refer to 11:59:59 PM unless otherwise specified.