CMSC 417, Spring 2023, UMD College Park

Office Hours:

David Kim (dkim8420@terpmail.umd.edu): Mondays 4:00-6:00pm, IRB 3F kitchen area.
Nakul Garg (nakul22@umd.edu): Tuesdays 12:00-2:00pm, IRB 3230
David Miller (dym@umd.edu): Wednesdays 3:30-5:30pm, AVW 4132 and online (Zoom link, Meeting ID: 925 4910 5520)
Prof. Nirupam Roy (niruroy@umd.edu): Thursdays 3:30-4:30pm, IRB 5240 or by appointments.

Description:
The goal of this course is to introduce students to the core concepts of wired and wireless networking. The primary focus will be on the layered architecture and the protocol stacks. At the end of the semester, students will well understand several concepts, including the Internet architecture, HTTP, DNS, P2P, Sockets, TCP/IP, BGP, Routing protocols, wireless and sensor networking, WiFi, cellular and satellite networks, and security.

Topics:

Basic concepts: Network architecture, Network edge & core
Transport Layer Services, Multiplexing
Reliable Data Transfer, TCP
Routing Algorithms
Software Defined Networks, Network Management
Framing, Error Detection and Correction
Multiple Access Protocols, LAN
Battery-free sensing and networking
Physical Layer Protocols, Wireless and Cellular Networks
Vehicluar Networks, Sensor Networks, Internet of Things

Prerequisite: Minimum grade of C- in CMSC351 and CMSC330; and permission of CMNS-Computer Science department. Or must be in the (Computer Science (Doctoral), Computer Science (Master's)) program.

Grading:
(1) Final exam (20%) - One closed book exam at the end of the semester covering the entire syllabus.
(2) Third-term exams (30%) - Two closed book in-class exams covering selected topics from the syllabus.
(3) Programming assignments(25%) - Five programming assignments.
(4) Project (20%) - One semester-long project in a group of four students.
(5) Class participation (5%) - Participation in discussions, and asking meaningful questions.

Textbook:

(1) Computer Networks: A Systems Approach
by Larry Peterson and Bruce Davie
Morgan Kaufmann, 5th Edition, 2011. ISBN 978-0123850591

Recommended books for reference:

(1) Computer Networking: A Top-Down Approach Featuring the Internet
by Jim Kurose and Keith Ross.
Pearson, 7th edition, 2016. ISBN: 978-0133594140

(2) TCP/IP Sockets in C: A Practical Guide for Programmers
by Michael J. Donahoo, Kenneth L. Calvert
Morgan Kaufmann, 2nd edition, 2009. ISBN 978-0123745408

Date

Topics of discussions

Study materials

26-Jan-2023

Lecture 1: Course logistics, Foundations of networks
(Textbook chapter 1)

1_overview_and_foundations.pptx

31-Jan-2023

Lecture 2: Foundations of networks (cont.)
(Textbook chapter 1)

2_foundations_continued.pptx

02-Feb-2023

Lecture 3: Distance vector routing
(Textbook chapter 3.3.1 and 3.3.2)

3_internetworking_DV_routing.pptx

07-Feb-2023

Lecture 4: Distance vector routing (cont.) and Link state routing
(Textbook chapter 3.3.2 and 3.3.3)

4_internetworking_DV_LS_routing.pptx

09-Feb-2023

Lecture 5: LS routing (cont.) and Basic internetworking (IP)
(Textbook chapter 3.3 and 3.2)

5_internetworking_LSRouting_IP.pptx

09-Feb-2023
(Thursday)

Assignment_0 is released.
Due: February 20th, 11:59:59 pm
Redo deadline (for 70% of the difference): March 6th, 11:59:59 pm

10-Feb-2023
(Friday)

Socket Programming Workshop.
Location: IRB 4105 (In-person. Slides and recordings will be available afterward.)
Time: 4:00pm to 5:00pm.

14-Feb-2023

Lecture 6: IPv4 addresses, Subnets, CIDR, DHCP
(Textbook chapter 3.2)

6_internetworking_IP.pptx

16-Feb-2023

Lecture 7: Subnets, CIDR, DHCP
(Textbook chapter 3.2)

7_internetworking_subnet_CIDR_DHCP.pptx

20-Feb-2023
(Monday)

Assignment_1 is released.
Due: March 6th, 11:59:59 pm
Redo deadline (for 70% of the difference): March 29th, 11:59:59 pm

21-Feb-2023

Midterm-1 reviews and Q&A by the TAs.

23-Feb-2023

Midterm-1 exam.
Syllabus: Link. (The topics covered in class.)
Past exam questions: 417-exams.zip.
This is an in-class exam. Please bring your university ID card.

28-Feb-2023

Lecture 8: Subnet, CIDR, DHCP, NAT protocol
(Textbook chapter 3.2)

8_internetworking_CIDR_DHCP_part2.pptx

02-Mar-2023

Lecture 9: DHCP, NAT
(Textbook chapter 3.2)

9_internetworking_DHCP_NAT.pptx

06-Mar-2023
(Monday)

Assignment_2 is released.
Due: March 29th, 11:59:59 pm
Redo deadline (for 70% of the difference): April 10th, 11:59:59 pm

07-Mar-2023

Lecture 10: ARP, ICMP, Virtual networks and tunnels
(Textbook chapter 3.2)

10_internetworking_ICMP_VPN_IPV6.pptx

09-Mar-2023

Lecture 11: Transport layer protocols
(Textbook chapter 5)

11_transportLayer_UDP_TCP.ppt

14-Mar-2023

Lecture 12: TCP, Stop-and-wait protocol
(Textbook chapter 5)

12_transportLayer_TCP.ppt

16-Mar-2023

Lecture 13: TCP flow control: Sliding window protocol
(Textbook chapter 5)

13_transportLayer_TCP_flowControl.ppt

19-March-2023
to 26-March-2023

Spring break

28-Mar-2023

Lecture 14: TCP flow-control and congestion-control
(Textbook chapter 5 & 6)

14_TCP_flow_and_congestionControl.ppt

29-Mar-2023
(Monday)

Assignment_3 is released.
Due: April 10th, 11:59:59 pm
Redo deadline (for 70% of the difference): April 24th, 11:59:59 pm

30-Mar-2023

Lecture 15: TCP congestion control
(Textbook chapter 6)

15_TCP_congestionControl.ppt

04-Apr-2023

Lecture 16: TCP details, Link layer
(Textbook chapter 6 & 2)

16_TCP_LinkLayer.ppt

06-Apr-2023

Lecture 17: Congestion control -part 3, router-assisted congestion control, Link layer
(Textbook chapter 6 & 2)

17_TCP_details_LinkLayer.pptx

06-April-2023
(Thursday)

Assignment_4 is released.
Due: April 24th, 11:59:59 pm
Redo deadline (for 70% of the difference): May 2nd, 11:59:59 pm

11-Apr-2023

Lecture 18: Midterm-2 review

18_midterm2_review.pptx

13-Apr-2023

Midterm-2 exam.
Syllabus: Link. (The topics covered in class.)
Past exam questions: 417-exams.zip.
Syllabus: Topics covered in class.
This is an in-class exam. Please bring your university ID card.

18-Apr-2023

Lecture 19: Chord protocol.
(The research paper)

19_Chord_part1_LinkLayer_ethernet.ppt

20-Apr-2023

Lecture 20: Ethernet and Hubs/Switches
(Textbook chapter 2)

20_LinkLayer_ethernet.ppt

24-April-2023
(Thursday)

Final project is released.
Due: May 11th, 11:59:59 pm (no redo or late submission allowed)
In-person project interviews and evaluations: May 12th and 13th (time slots will be released)

25-Apr-2023

Lecture : Ethernet, WiFi
(Textbook chapter 2)

21_ethernet_WiFi.ppt

27-Apr-2023

Lecture : Wifi, Cellular networks and mobility in Wireless networks
(Textbook chapter 2)

22_ethernet_WiFi_cellular.pptx

02-May-2023

Lecture : WiFi, Mobility in Wireless, Advanced networking: BGP protocol
(Textbook chapters 2 and 4)

23_WiFi_mobility_BGP.pptx

04-May-2023

Lecture : BGP
(Textbook chapter 4)

24_BGP.pptx