Method and system for evaluating user-perceived network performa

Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer data transfer regulating

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370229, 709224, G06F 1100

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06076113&

ABSTRACT:
A scheme of evaluating performance of a network connecting a remote terminal to a data service system is described. The scheme emulates a communication protocol to transfer data reliably and in sequence with congestion control. The communication protocol includes mechanisms for acknowledgment and retransmission and a dynamic window size. The scheme restricts the dynamic window size not to be greater than a predetermined maximum window size, and the amount of data transferred to a predetermined data transfer size, thereby accurately measuring user-perceived network throughput without significantly impacting network performance.

REFERENCES:
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I. Miloucheva et al.; Protocol Mechanisms for Reliable Transmission and Flow Control on Multimedia Highways; Conf. Proc. of the 1996 IEEE 15th Annual International Phoenix Conf. on Computers and Communications; pp. 239-245, Mar. 1996.
Matthew Mathis: Windowed Ping: An IP Layer Performance Diagnostic; Computer Networks and ISDN Systems 27; pp. 449-459, 1994.
Lakshman et al.; Window-Based Error Recovery and Flow Control With a Slow Acknowledgement Channel: A Study of TCP/IP Performance; INFOCOM '97; pp. 1199-1209, Apr. 11, 1997.
Teunis J. Ott et al.; The Stationary Behavior of Ideal TCP Congestion Avoidance; DIMACS Workshop on Performance of Realtime Applications on the Internet; pp. 1-31, Aug. 22, 1996.
Tanenbaum; Structured Computer Organization, 2nd Edition; pp. 10-12, 1984.
Matt Mathis and Jamshid Madhavi, "Diagnosing Internet Congestion with a Transport Layer Performance Tool". Proceedings of INET'96 Jun., 1996.

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