Lecture Notes
- Presentation: PDF
- HTTP Packet Capture obtained using tcpdump and Wireshark. You can open this file in Wireshark, i.e. you don't have to capture using tcpdump. I've removed packets not relevant to the example leaving seven packets. Two of them show the HTTP request and response and the remaining five are TCP packets used to correctly transmit the data across the network.
- Example calculations of delay, overhead and throughput (PDF)
- Example of traffic types (PDF)
- Protocol stack diagram (PDF) illustrated the main concepts, mechanisms, technologies and protocols we cover in the course. Although it does not cover everything in the course, it will be useful as a reminder when you are studying for the exams.
- Another example of delay concepts, showing the calculation for transmission delay and propagation delay.
Readings
Links
- Wireshark - free download of software to capture and view packets. Downloads for Windows and OS X. In Linux, use your package manager to install (e.g. sudo apt-get install wireshark in Ubuntu).
- Instructions for demonstrating the effect of delay and jitter on streaming video.
- Delay Applet from Kurose that demonstrates transmission and propagation delays
- See my Study Guide for links to standards organisations - you should be aware of their abbreviations and what they do, because you will come across them in this and other courses many times.
Videos
- This year: CS2, IT2, CS3, IT3, CS4, IT4, CS5, IT5
- Last year: CS1, CS2, CS3, CS4, IT1, IT2, IT3, IT4,
Notes
