CSE123 provides an introduction to the concepts, principles, and practice of computer communication networks with examples from existing architectures, protocols, and standards. Topics include layering and the OSI model; switching; local, metropolitan, and wide area networks; datagrams and virtual circuits; routing and congestion control; and internetworking (a.k.a. The Internet).

Prereqs: CSE30, CSE101, CSE110 and programming experience with C for the projects. CSE120 strongly recommended.

Issues relating to the projects and homework assignments will be handled largely in the discussion section. The TAs will likely be far more accommodating to questions from those students who regularly attend discussion sections.

Course Staff

Teaching Assistants

NameRoleEmailOffice Hours
Xuyang Cao Project 1/2 Lead 11am-12pm Tue. and Thur. (both on Zoom LTI Pro)
Aritra Basu Project 3/4 Lead 3-4pm Wed. (on Zoom LTI Pro) and Fri. (CSE Basement 260A)
Harsh Gondaliya Homeworks/Exam Lead 5-6pm Mon. and Tue. (Zoom LTI Pro)
Shreyas Ramaprasad Discussion,Project 1/2,Exam Lead 5-6pm Wed. (Zoom LTI Pro) Thur. 4-5pm (CSE Basement 270A)


NameEmailOffice Hours
Aaron Schulman Monday 4-5pm (Aaron's Office 3120 CSE) and Wednesday 2-3pm (Outside of 115 Center)

Collaboration Policy

All homework and programming assignments must be completed individually. You must write all solutions and code that you submit, excepting any code that was provided to you as part of the assignment. You may discuss the assignments with others, but you may NOT make your code available to others or copy answers or code from another student--this includes GitHub repostiories (or similar) for assignments from this or similar courses in previous terms at any university. You will be issued private GitHub repositories for use in this course; it is your responsibility to make sure your code stays private. Exams will be individual effort and closed book.

Each student is responsible for knowing and abiding by UCSD’s Policy on Integrity of Scholarship. Any student violating university standards will earn an 'F' in the course and will be reported to the appropriate campus office. Committing acts that violate integrity or community standards are cause for suspension or dismissal from UCSD. You may be interested in the new 2017 Sanctioning Guidelines for Academic Integrity violations.

Charles Elkan's academic honesty guidelines developed for CSE 130 explicitly spell out many of your reponsibilities, and must be adhered to. If you have any questions, please ask.

Don't cheat. It's not worth it.

Diversity and Inclusion

We are committed to fostering a learning environment for this course that supports a diversity of thoughts, perspectives and experiences, and respects your identities (including race, ethnicity, heritage, gender, sex, class, sexuality, religion, ability, age, educational background, etc.). Our goal is to create a diverse and inclusive learning environment where all students feel comfortable and can thrive.

Our instructional staff will make a concerted effort to be welcoming and inclusive to the wide diversity of students in this course. If there is a way we can make you feel more included please let one of the course staff know, either in person, via email/discussion board, or even in a note under the door. Our learning about diverse perspectives and identities is an ongoing process, and we welcome your perspectives and input.

We also expect that you, as a student in this course, will honor and respect your classmates, abiding by the UCSD Principles of Community. Please understand that others’ backgrounds, perspectives and experiences may be different than your own, and help us to build an environment where everyone is respected and feels comfortable.

If you experience any sort of harassment or discrimination, please contact the instructor as soon as possible. If you prefer to speak with someone outside of the course, please contact the Office of Prevention of Harassment and Discrimination.

Students with Disabilities

We aim to create an environment in which all students can succeed in this course. If you have a disability, please contact the Office for Students with Disability (OSD), which is located in University Center 202 behind Center Hall, to discuss appropriate accommodations right away. We will work to provide you with the accommodations you need, but you must first provide a current Authorization for Accommodation (AFA) letter issued by the OSD. You are required to present their AFA letters to Faculty (please make arrangements to contact the instructor privately) and to the OSD Liaison in the department in advance so that accommodations may be arranged.

Last updated: 2022-05-06 11:57:49 -0700 [validate xhtml]