CBWFQ

AcronymDefinition
CBWFQClass Based Weighted Fair Queuing
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The lower priority packets are serviced using the CBWFQ algorithm.
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.
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.
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.