CS 725/825 Computer Networks, IT 725 Network Technology

Notes

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Slides and sketches drawn on the document camera in class are posted here after each lecture. These are intended as supplementary materials, you are expected to take notes during the class. You will be tested on points covered in class but not necessarily reflected here. Additionally, you will find reading materials and additional resources for each topic. Reading assignments refer to the eighth edition of the textbook.

Week 1

Monday, 8/31
Course introduction, internet structure. Content delivery networks (CDNs), categories of networks
Resources: textbook sections 1.1 and 1.2, A Brief History of the Internet a 2009 ACM SIGCOMM Computer Communication Review paper by some of the key contributors to the development of the internet. Network maps of a top-tier service provider Cogent (nice 3D version), Internet Society Pulse (an Internet Society website with lots of interesting internets stats)
Wednesday, 9/2
Assignment 0. Basic Networking Concepts: layered model, OSI 7-layer model, internet layers. Internet protocol "hourglass"
Resources: textbook section 1.5

Week 2

Monday, 9/7
Labor Day - UNH closed
Wednesday, 9/9
Common functions of layers. Services of a layer, reliable vs. unreliable, connection-oriented vs. connectionless. Network performance measures. Time-space diagram. Networking Fundamentals: Routed point-to-point networks
Resources: textbook sections 1.4, 1.5 and 1.7, Historical Maps of Computer Networks