Multiple priority, per flow, dual GCRA rate controller for ATM switches

We propose a rate controller for ATM switches. The rate controller supports multiple priorities, and dual leaky bucket (GCRA) traffic descriptors (such as VBR). While regulating each stream independently, our rate controller requires relatively modest computation bandwidth so that it can be implemented without any additional special-purpose hardware. It also enjoys the important advantage of being decoupled from the link schedulers. We study what is the best way to allocate resources to rate controllers along the path of connection, and demonstrate the effectiveness of aggressive shaping at the network ingress