Implementation and Characterization of an Advanced Scheduler

Decoupled-CBQ, a CBQ derived scheduler, has been proved being a substantial improvement over CBQ. D-CBQ main advantages are a new set of rules for distributing excess bandwidth and the ability to guarantee bandwidth and delay in a separate way, whence the name "decoupled". This paper aims at the characterization of D-CBQ by means of an extended set of simulations and a real implementation into the ALTQ framework.