CBWFQ

AcronymDefinition
CBWFQClass Based Weighted Fair Queuing
References in periodicals archive ?
The lower priority queues are serviced using CBWFQ. Although this approach offers preferential treatment to real-time traffic, at high arrival rates of voice traffic, the video traffic may suffer starvation and complete resource malnourishment.
Real time voice and video packets are forwarded to the strict priority queue, while the other types of data are forwarded to the CBWFQ queue.
Rahman, "Bandwidth Guarantee using Class Based Weighted Fair Queue (CBWFQ) Scheduling Algorithm", International Journal of Digital Information and Wireless Communication (IJDIWC), Vol.5, No.3, pp.
CBWFQ permite definir clases de trafico por usuario, y al administrador establecer un criterio para identificar el trafico que depende de la clase a que este pertenezca, y asi asignar ancho de banda, peso y maxima longitud de transmision del paquete.
Un ejemplo de algoritmo hibrido es el Low Latency Queueing (LLQ), tambien conocido como PQ/CBWFQ, en el cual se combinan las caracteristicas de PQ para clasificar el trafico y definir las colas; el envio de paquetes se realiza basandose en CBWFQ. Este tipo de esquema divide el trafico en cuatro clases: uno de clase prioridad alta, dos clases de ancho de banda garantizado y una clase para trafico predeterminado.
Tabla 1 Comparacion entre WFQ, DWFQ, CBWFQ y DCBWFQ5 WFQ DWFQ CBWFQ DCBWFQ Flow-based WFQ: Flow-based DWFQ: Class-based WFQ: Class-based distribute-- --Asigna pesos --Distribucion --Asignacion de +-d WFQ: al clasificar equitativa pesos.
Simulation of CBWFQ algorithm with generic traffic shaping and policing mechanism were implemented on IP router.
CBWFQ scheduling scheme guaranteed bandwidth to each class of service in a network during the period of congestion.