Using Class-Based Weighted Fair Queuing
.. CBWFQ carries the WFQ algorithm further by allowing user-defined
classes, which allow greater control over traffic queuing and bandwidth
allocation.
.. Flow-based WFQ automatically detects flows based on characteristics of
the third and fourth layers of the OSI model. Conversations are singled
out into flows by source and destination IP address, port number, and IP
precedence.
.. CBWFQ allows the creation of up to 64 individual classes plus a default
class.The number and size of the classes are, of course, based on the
bandwidth. By default, the maximum bandwidth that can be allocated to
user-defined classes is 75 percent of the link speed.