Overbooking is a technique used by network providers to increase bandwidth utilization. If the overbooking factor is chosen appropriately, additional virtual circuits can be admitted without degrading quality of service for existing customers. Most existing implementations use a single factor to accept a linear fraction of traffic requests. High values of this factor may cause the degradation of quality of service whereas low overbooking factors will result in underutilization of bandwidth. Network providers often select overbooking factors based only on aggregate average virtual circuit utilization. This paper proposes a selective overbooking scheme based on trunk size and usage profile. Experiments and analysis show that the new overbooking policy results in a superior network performance.
College and Department
Physical and Mathematical Sciences; Computer Science
BYU ScholarsArchive Citation
Huang, Feng, "A Selective Approach to Bandwidth Overbooking" (2006). All Theses and Dissertations. 401.
overbooking, bandwidth, simulation, quality of service