CBWFQ allows for coarser granularity Multiple IP flows can belong to a single class

© 2004 Cisco Systems, Inc. All rights reserved. bcran v2.1—10-9

CBWFQ offers these benefits over flow-based WFQ:

■ Bandwidth allocation: CBWFQ allows you to specify the exact amount of bandwidth to be allocated for a specific class of traffic. You can configure up to 64 classes and control distribution among them.

Note This is not the case with flow-based WFQ. Flow-based WFQ applies weights to traffic and classifies traffic into conversations, thus controlling how much bandwidth each conversation is allocated relative to other conversations. For flow-based WFQ, these weights and traffic classifications are limited to the seven IP precedence levels.

■ Finer granularity and scalability: CBWFQ allows you to define classification based on more criteria. It allows you to use ACLs, protocols, and input interface names to define how traffic will be classified, thereby providing finer granularity. You can configure up to 64 discrete classes in a service policy.

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