TCP-Vegas Slow Start Performance in Large Bandwidth Delay Network
| Autor: | Soo-hyeong Lee, Byung G. Kim, Yanghee Choi |
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| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | Information Networking: Wired Communications and Management ISBN: 9783540442561 ICOIN (1) |
| DOI: | 10.1007/3-540-45803-4_36 |
| Popis: | With the rapid expansion of the Internet, it has become possible for end hosts that are separated long apart to be connected through high bandwidth links. This environment, called a Large Bandwidth Delay Network, poses a major challenge to the performance of the Internet. A long-delay connection usually suffers from being treated unfairly when competing with short-delay connections. A link, to avoid being underutilized, has to be equipped with an a buffer as large as the bandwidth delay product of the longest connection.TCP-Vegas is known as a potential solution to these problems. According to a number of previous studies, it is said to fairly treat connections with different propagation delays and avoid under-utilization even with a buffer that is independent of the bandwidth delay product.In this paper we show, from simulation and analysis, that the current TCP-Vegas does NOT achieve high utilization in such a large bandwidth delay network, because of its slow-start phase. Moreover, to avoid loss, TCP-Vegas slow-start requires a buffer that is proportional to the square root of the bandwidth delay product. We propose a solution to these problems and analyze its performance. |
| Databáze: | OpenAIRE |
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