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TCP Congestion Window Control on an iSCSI Read Access in a Long-Latency Environment

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Overview As the broadband networks are widely used, IP-SAN is expected as the next generation's SAN because of its low cost. The iSCSI protocol, represented as IP-SAN technology, is becoming increasingly important. However, the performance of iSCSI network is lower than that of network based only on TCP/IP, due to its complex protocol processing in accessing storage with iSCSI. This paper presents performance improvement using a dynamic Congestion Window control method to stabilize throughput unevenness. iSCSI network performance is evaluated with a remote storage access on iSCSI protocol using the proposed method. As a result, iSCSI performance improved compare with the case of not using the proposed method in a long-latency environment, and it is confirmed that the proposed method is effective.

Further White Paper Details
Publisher	University of Tokyo	File Format	PDF
Date Published	May 2005	Downloads	1
Format	White Papers
Topics	TCP - IP

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