distributed computer systems
Teaching
Overview
As every semester, the DISCO group offers a seminar with focus on performance and security aspects of communication networks this summer. If you are interested in participating in our seminar, please send an email to This email address is being protected from spambots. You need JavaScript enabled to view it. until Friday, April 24th 2pm.
The registration is closed; the seminar has started.
| Department, Module ID |
Computer Science (89) – 4111: Distributed and Networked Systems (Ba-Seminar) |
| KIS-Entry | INF-41-11-S-4 |
| Kick-Off Meeting: | May 12 at 2:45 PM in room 36-438 |
| Submission deadline | June 29 |
| Presentation day: | July 6 starting from 9:00 AM in room 36-438 |
Presentation Day
| Date: | July 6, 2015 |
| Time: | 9:00 - 13:45 |
| Room: | 36-438 |
Guidelines for the presenters
Each presentation is supposed to last 30 minutes, followed by 15 minutes discussions. Prepare your slides and send them in PDF or PowerPoint format to This email address is being protected from spambots. You need JavaScript enabled to view it. prior to the presentation day (i.e. at latest Sunday, 5th of July). We will supply you with a presenter and laptop. Please let us know if you need additional material or if you want to use your own laptop and/or present a live demo.
Program
| Time | Title | Presenter |
|---|---|---|
| 9:00 - 9:45 | Buffering in Optical Networks | Anja Hamscher |
| 9:45 - 10:30 | Traffic Modelling | Peter Brucker |
| 10:30 - 11:15 | Inside Youtube Streaming | Johannes Jaeckel |
| 11:15 - 12:00 | Website Penetration Testing Tools | David Staub |
| 12:00 - 13:00 | Lunch Break | Mensa |
| 13:00 - 13:45 | Facebook Privacy Issues | Marco Meides |
Topics
Note: Downloads are only accessible from within the university network (i.e. IP addresses 131.246.*).
| Nr. | Title | Student | Supervisor | Report |
|---|---|---|---|---|
| 1 | Inside Youtube Streaming | Johannes Jaeckel | HW | |
| 2 | Website Penetration Testing Tools | David Staub | MS | |
| 3 | Traffic Modelling | Peter Brucker | MB | |
| 4 | Facebook Privacy Issues | Marco Meides | JS | |
| 5 | Buffering in Optical Networks | Anja Hamscher | SB |
Organization
|
Exam: |
Oral exams are held on September 21st and October 12th. |
|
Lecture: |
Tuesdays, 11:45-13:15 in 46-210 |
|
Contact: |
Prof. Dr.-Ing. Jens Schmitt |
|
Exercise: |
Preliminary on Fridays, 15:30-17:00 in 36-438. The exact weeks in which exercises are hold will be announced in the lectures and on this homepage! |
Note
There is no lecture on June 16th!
Lecture Overview
The objective of this lecture is to introduce the basics of performance management in communication networks on multiple time-scales. The contents are as follows:
- Introduction & Motivation
- Long-Term Performance Management
- Network Design
- Traffic Modelling
- Medium-Term Performance Management
- Traffic Engineering / Routing
- Content Distribution / Caching
- Short-Term Performance Management
- Packet-Level Dynamics
- Packet Scheduling
- Conclusion and Outlook
Material & Slides
The slides are accessible only from within the university network (131.246.*). Please use SSH or VPN for remote access.
| Chapter | Title | Slides |
|---|---|---|
| Chapter 0 | Organization | |
| Chapter 1 | Introduction | |
| Chapter 2 |
Long-Term Performance Management |
part1 (pdf) part2 (pdf) part3 (pdf) |
| Chapter 3 |
Medium-Term Performance Management |
part1 (pdf) part2 (pdf) |
| Chapter 4 |
Short-Term Performance Management |
part 1 (pdf) |
Exercises
Preliminary on Fridays, 15:30-17:00 in 36-438.
The exact weeks in which exercises are hold will be announced in the lectures and on this homepage!
| Exercise | Time | Material |
|---|---|---|
| Exercise 1 | Friday May 8th, 15:30 in 36-438 | pdf, pdf2, positions, positions2, solution |
| Exercise 2 | Friday May 29th, 15:30 in 36-438 | pdf, solution |
| Exercise 3 | Friday June 26th, 15:30 in 36-438 | pdf, node-incidence, capacities, demands |
| Exercise 4 | Friday July 10th, 15:30 in 36-438 |
Exercises
Organisatorisches
|
News: |
Die vorläufigen Ergebnisse der zweiten Klausur sind online! |
|
Klausur: |
1. Klausur: 12. August 2015 |
|
Vorlesung: |
Montags, 15:30 in Raum 46-210 |
|
Kontakt: |
Prof. Dr.-Ing. Jens Schmitt |
Vorlesungsübersicht
Diese Vorlesung soll die Aufgaben, der Aufbau und die Arbeitsweise moderner Kommunikationssysteme näher bringen. Insbesondere liegt dabei der Fokus auf der Architektur und den Protokollen, welche heute vor allem im Internet im Einsatz sind. Anhand eines Schichtenmodells, werden von Anwendungsprotokollen (z.B. HTTP, FTP, SMTP, ...) bis zu den Grundlagen der Datenübertragung (z.B. Signalverarbeitung, Kodierungstheorie) viele Aspekte vernetzter Systeme behandelt.
Der Vorlesungsaufbau ist dabei wie folgt:
- Anwendungsschicht: Softwarearchitektur, Web, FTP, E-Mail, DNS, Peer-to-peer Anwendungen
- Transportschicht: Multiplexing, UDP, TCP
- Vermittlungsschicht: IP, Routing, Forwarding
- Sicherungsschicht: Fehlererkennung & -korrektur, Mehrfachzugriff, Ethernet
- Physikalische Schicht: Theoretische Grundlagen der Datenübertragung, Übertragungsmedien, Kodierungstechniken
Vorlesungsunterlagen
Downloads zu dieser Vorlesung sind nur aus dem Universitätsnetz verfügbar (131.246.*). Um außerhalb des Universitätsnetzes auf das Material zugreifen zu können, nutzt bitte Dienste wie VPN oder SSH.
| Titel | Letztes Update |
Folien |
|---|---|---|
| 0. Organization | 20.04.2015 | |
| 1. Introduction | 20.04.2015 | |
| 2. Application Layer | 20.04.2015 | |
| 3. Transport Layer | 20.04.2015 | |
| 4. Network Layer | 20.04.2015 | |
| 5. Link Layer | 20.04.2015 | |
| 6. Physical Layer | 20.04.2015 | |
| 7. Recap | 20.07.2015 |
Zusätzliche Links, Materialien,etc.
Link zur Entwicklung des Internet: http://www.evolutionoftheweb.com/?hl=de#/evolution/day
Klausur
Die vorläufigen Ergebnisse der zweiten Klausur findet ihr hier: PDF (nur aus dem Uni-Netz). Die Einsicht wird am Montag, dem 5. Oktober 2015 um 10:00 Uhr in Raum 36-438 stattfinden.
Die endgültigen Ergebnisse der ersten Klausur findet ihr hier: PDF (nur aus dem Uni-Netz).
Zulassungen
Die Liste mit den Zulassungen findet ihr hier: PDF. Bitte überprüft diese und schickt bei Fragen eine E-Mail an This email address is being protected from spambots. You need JavaScript enabled to view it.. Falls ihr die Zulassung im letzten Jahr erhalten habt und nicht auf der Liste steht, schickt bitte ebenfalls eine E-Mail, da wir euch nicht mitschreiben lassen dürfen, wenn die Zulassung unklar ist.
Übungen
| Übungsanmeldung: | bis 24.04.2015, 23:59 (siehe unten) |
| Übungsbeginn: | 28.04.2015 |
Übungsblätter (nur aus dem Uni-Netz)
| # | Termine | Letztes Update | |
|---|---|---|---|
| 1 | 28. April (Dienstag) bis 11. Mai (Montag) | 25.04.2015 | |
| 2 | 12. Mai (Dienstag) bis 25. Mai (Montag) | 12.05.2015 | |
| 3 | 26. Mai (Dienstag) bis 8. Juni (Montag) | 12.05.2015 | |
| 4 | 9. Juni (Dienstag) bis 15. Juni (Montag) | 12.05.2015 | |
| 5 | 23. Juni (Dienstag) bis 6. Juli (Montag) | 12.05.2015 | |
| 6 | 7. Juli (Dienstag) bis 20. Juli (Montag) | 12.05.2015 | |
| Zusammenfassung von Markus Fögen | 21.07.2015 |
We are part of the Lehrgebiet "Verteilte und Vernetzte Systeme" at the Department of Computer Science at the TU Kaiserslautern. Our classes comprise one mandatory and several selective undergraduate and graduate-level courses. We also offer projects, seminars, and theses.
Summer Semester
Seminar
The seminar covers various topics in performance and security of distributed systems.
QuantAs
This course gives an introduction to the basics of performance management in communication networks on multiple time-scales.
We offer a variety of bachelor and master theses at any point in the academic year. Also see our recently completed theses page.
Information about past teaching activity can be found under Past Teaching.
Course Overview
The objective of this lecture is to introduce the art of perfomance-related modeling of complex distributed systems. We will use worst-case assumptions in order to obtain robust results.
Organization
| Lecture: | On Tuesdays at 10:00h–11:30h in 48/379, starting on Nov 4!
|
| Exercise: |
Exercises will be held on a biweekly basis We offer two dates for the exercises: Tuesdays 15:30h Wednesdays 15:30h The exercises are held in the DISCO-Seminar room (36-438) |
| Exam: |
The oral exam dates are 23.2.15, 27.3.15 and 7.5.15 |
| Contact: | Prof. Dr.-Ing. Jens Schmitt |
Lecture Slides
Min-plus Algebra Primer (Part 1) Min-plus Algebra Primer (Part 2)
Basic Network Calculus (Part 1) Basic Network Calculus (Part 2) Basic Network Calculus (Part 3) Basic Network Calculus (Part 4)[slightly updated]
Advanced Network Calculus (Part 1) Advanced Network Calculus (Part 2) [slightly corrected, 20.1.15] Advanced Network Calculus (Part 3) Advanced Network Calculus (Part 4)
All lecture slides slides as ppt
Exercise Sheets
We strongly recommend you to work on the exercises, since they are crucial to get a good grasp on math-heavy lectures.
We recommend to go to the exercises fully prepared, meaning: you should be able to present your solutions to the other students on the blackboard.
| Sheet | Session Date | Links |
|---|---|---|
| Sheet 1 |
November 25th / 26th |
Sheet 1 (pdf) |
| Sheet 2 | December 9th / 10th | Sheet 2 (pdf) |
| Sheet 3 | January 20th / 21st | Sheet 3 (pdf) |
| Sheet 4 | February 4th | Sheet 4 (pdf) |
Literature
- Jean-Yves Le Boudec, Patrick Thiran. Network Calculus. Springer, 2001. (Also →available online)
University of Kaiserslautern
Write your thesis with a disco advisor
We offer a variety of bachelor and master theses at any point in the academic year. Also check out some of our completed theses. Read more...