EE535 - Project 4

DQDB Bus Contention Resolution Interactive Applet

Jorge Guajardo
Pedro Soria-Rodriguez


Project Description

Switch Multi-Megabit Data Service is the name given to DQDB services in the U.S. (also known as IEEE 802.6). DQDB is a dual cable implementation of the perfect scheduling idea that we reviewed as part of our discussion of the D channel contention in ISDN.

In this project we will write a Java Applet that steps through an example of bus contention using this system. It will allow the user to vary key parameters such as the number of users and the timing of their data availability so the user can throughly understand this MAC technique.

Table of Contents

  1. Overview of DQDB
  2. DQDB Bus Access Protocols
  3. DQDB Protocol Data Unit Formats
  4. Bus Contention Example
  5. DQDB Bus Contention Resolution Interactive Applet
  6. References

Thu Apr 3 18:40:49 EST 1997

Back to the WPI EE535
Telecommunications and Transmission Technologies
Course Homepage