  As the speed and the dynamic range of computer networks evolve, the issue of
efficient traffic management becomes increasingly important. This work
describes an approach to traffic management using explicit rate information
provided to the source by the network. We present an asynchronous distributed
algorithm for optimal rate calculation across the network, where optimality is
understood in the maxmin sense. The algorithm quickly converges to the optimal
rates and is shown to be well-behaved in transience.
