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Data logistics in network computing: the logistical session layer

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2 Author(s)
Swany, D.M. ; Dept. of Comput. Sci., California Univ., Santa Barbara, CA, USA ; Wolski, R.

Presents a strategy for optimizing end-to-end TCP/IP throughput over long-haul networks (i.e. those where the product of the bandwidth and the delay is high.) Our approach defines a logistical session layer (LSL) that uses intermediate process-level "depots" along the network route from source to sink to implement an end-to-end communication session. Despite the additional processing overhead resulting from TCP/IP protocol stack-Unix kernel boundary traversals at each depot, our experiments show that dramatic end-to-end bandwidth improvements are possible. We also describe a prototype implementation of LSL that does not require any Unix kernel modification or root access privilege, which we used to generate the results, and we discuss its utility in the context of extant TCP/IP tuning methodologies

Published in:

Network Computing and Applications, 2001. NCA 2001. IEEE International Symposium on

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