Class Based Queueing
Hierarchical link sharing
- a priori hierarchical partitioning of a link’s bandwidth among organizations, traffic classes, or protocol families
A class can continue unregulated if
- the class is not overlimit (i.e. using more than its share)
- the class has a not-overlimit ancestor at level i, and there are no unsatisfied classes at levels lower than i;
a class is unsatisfied if underlimit and has a persistent backlog