Evaluation of the robustness (and usefulness) of some QoS services

This work was based on both analysis (mostly simulations in this case), and experimentation on a testbed that consisted of routers with various Quality-of-Service (QoS) capabilities. In addition, a connection to the QBone (a QoS enabled portion of the Internet2 network) was used to complement the local testbed measurements with a wide area experiments. Of particular interest was the impact that network induced perturbations can have on conformance checks performed at boundaries between provider domains.

Penn Contributors

• Roch Guerin
• Vicent Pla

Publications

• R. Guerin and V. Pla. “Aggregation and Conformance in Differentiated Service Networks: A Case Study.” Computer Communication Review, Vol. 31, No. 1, January 2001, pp. 21-32. (Short version presented at ITC Specialist Seminar on IP Traffic Modeling, Measurement and Management, Monterey, CA, September 2000).