Abstract

Since it was published in 1988, no one has implemented, deployed, and published a successful enhancement to Van Jacobson's Slow-Start flow control algorithm [6] for wide-area TCP networks that is backwards compatible with existing implementations. No one until Brakmo, O'Malley, and Peterson [2] who claim their TCP Vegas modifications yield both simultaneous throughput improvement and increased network efficiency. This paper presents evidence that the Vegas performance enhancements to TCP flow control proposed do not always simultaneously yield both increased throughput and decreased load on the network. We arrived at this conclusion by conducting experiments on an emulated wide-area network that we constructed. This paper reviews the Vegas algorithm, describes our network emulator, and contrasts our experimental results with those of Brakmo et al. 1 Introduction Since it was published in 1988, no one has implemented, deployed, and published a successful enhancement to Van Jacobson's S...

Citations