Date of this Version
Virtual queue-based marking schemes have been recently proposed for Active Queue Management (AQM) in Internet routers. We consider a particular scheme, which we call the Adaptive Virtual Queue (AVQ), and study its following properties: its stability in the presence of feedback delays, its ability to maintain small queue lengths, and its robustness in the presence of extremely short flows (the so-called web mice). Using a linearized model of the system dynamics, we present a simple rule to design the parameters of the AVQ algorithm. We then compare its performance through simulation with several well-known AQM schemes such as RED, REM, Proportional Integral (PI) controller, and a nonadaptive virtual queue algorithm. With a view toward implementation, we show that AVQ can be implemented as a simple token bucket using only a few lines of code.
Active queue management (AQM), ECN marking, Internet congestion control
Kunniyur, Srisankar S. and Srikant, R., "An Adaptive Virtual Queue (AVQ) Algorithm for Active Queue Management" (2004). Departmental Papers (ESE). Paper 47.
Date Posted: 19 November 2004
This document has been peer reviewed.