Bandwidth Management

After your selected traffic has been classified, the next step is to ensure that it receives the special treatment it requires from the devices. You do this through the use of queuing and scheduling.

You have the choice of two different implementations of Weighted Fair Queuing (WFQ):

Flow-based WFQ Packet classification is based on a flow. Each flow is placed in a separate output queue. When your packet is identified as belonging to a particular flow, it is placed in the associated queue. During times of congestion, WFQ allocates a portion of the available bandwidth for use by each active queue.

Class-based WFQ Packets receive the functionality of WFQ with user-defined traffic classes. You create these traffic classes through such mechanisms such as access control lists. After the traffic is classified, you can assign it a fraction of the output interface bandwidth.