Computer Networks CNT5106C Fall, 2017 Ye Xia (Pronounced as “Yeh Siah”)

How is the course conducted? The lecture slides are posted on the course web page. Please follow the lecture schedule and read the chapters ahead. Assignments are all posted on Canvas. Critical dates are posted on the web page and Canvas.

Course Coverage Overview of communication networks Focus on the Internet; but also think about other networks Will teach networking knowledge Pick up concepts, jargons and technologies Special attention will be paid to engineering the network Principles and design of the network Protocols Algorithms Always consider: what are the issues and how they are solved?

Coverage Basic: network protocol layers Application Transport Networking Data Link Integrated, advanced, or specialized topics Quality of service framework and mechanisms Wireless networks Peer-to-peer networks network resource allocation network security

Principles and Design Most communication networks are giant infrastructure. A lot is at stake. Need Careful and good design, and/or Can be evolved Objective: what is it used for Limited or unlimited? What is its architecture ? Specify different components and what they do How they are realized: implementation and technologies What are the design principles: for coping with complexity To ease designer, implementer, or user’s lives

Protocols and Algorithms Algorithms: formal procedure to accomplishing some task Protocols: governs the information exchange and collective behavior of distributed entities For certain tasks These are important components in networks Each piece can also be complex Also need some design principles

Network Programming Learn network programming through project not a focus of the lectures; but important You can do much more yourselves.

Why This Course? Obvious: Learn about the internals of the Internet Learn about communication networks in general Learn network programming Related to other core areas of CS: (distributed) operating systems For some: continue with advanced network courses Less obvious: Learn about distributed, complex systems Typical issues, solutions, design and architecture Coping with complexity and scale

Textbook Computer Networking: A Top-Down Approach, 6th Edition by James F. Kurose & Keith W. Ross Important to have access to the 6th edition Homework questions and labs are from the textbook

Course Web Page Course home page: http://www.cise.ufl.edu/~yx1 You will find Lecture slides and supplemental materials Reading assignments Project assignments Contact information Syllabus Critical dates

Canvas Use Go to http://elearning.ufl.edu/, and log in with your gatorlink account Distribute assignments and solutions Post assignment grades Post announcements, which will be emailed to your gatorlink accounts. Submissions of homework and project

Requirements Homework assignments (6) – 10% One programming project (25%) Attendance: 5% Exams: each two hours long Midterm – 30% (Oct. 10, Tuesday, in class) Cover the material up to the lecture on Oct. 5, inclusive. Final – 30% (Dec. 12 , Tuesday, 7:30-9:30 am) Cover material after Oct. 12.

Homework Distributed by Canvas and emailed to you Submit homework on Canvas

Homework: Important Note Each exam will have at least 10% (maybe 20%) of the points coming directly from the homework questions. This is in addition to the homework’s 10% direct contribution to your course grade. Check homework solutions carefully for correctness.

Project One programming project Details will be posted later on network programming, spread out There is a mid-semester checkpoint Final due date: Dec. 1, 11:59 pm Team project: 3 persons per team Java programming; C/C++ are also alright Demo to TA for grading Details will be posted later

Late Policies Late homework will be accepted until one week after the original due date or until the solutions are posted, whichever is sooner. Late homework submissions will face additional 30-point reduction (out of 100). No late project please.

Office Hours Instructor: Fri: 12:00 – 2:00 pm, or by appointment TA and grader: see the course web page Yao, Heng Office Hours: Mon. 1:30-3:30 pm, and Wed. 11:00 am-12:00; E309

Others Class participation: Please show up in classes Academic honesty: no copying of anything!

EDGE Student Policies: Homework: EDGE students will have three extra days (both week- and weekend days). For submissions, please scan your homework and submit it by email to me and copied to the TAs. Exams: EDGE students will have three extra business days for the exams. Projects: The project due dates are as on-campus students. EDGE students can work on the project individually. We will take that into consideration for grading. A project demo to the TA is not required. But, please write detailed instructions about the testing procedure. If you think it is easier, you can schedule a Skype session with the TA for a demo.