Efficient hop by hop buffer class flow control schemes

Design issues of hop-by-hop buffer class flow-control schemes are discussed. They are: (1) good window size for high-speed and large-propagation-delay environments and (2) the concept of congestion and access fairness. Schemes are proposed for buffer classification and window-size adjustment. A novel buffer classification, the path-based scheme, has the same fairness property but fewer classes than the route-based scheme. The window adjustment shceme, the quasistatic scheme, has similar or slightly worse performance to, but requires much less complexity than, dynamic schemes.