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AssigneeInternational Business Machines Corporation
InventorsDwip Banerjee, Kavitha Baratakke, Ketan Pancholi, Venkat Venkatsubra
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A dynamically-enforceable application-controlled quasi-reliable extension to TCP permits a client application to dynamically set a percent loss tolerance for data transmission reliability through network input/output system calls to the TCP, thereby programming the transport layer to optimistically acknowledge non-critical missing frames. The reliability requirement can be dynamically set within TCP to the level of reliability required for specific data frames within the data stream during the data transfer. Based on this loss tolerance specified, the TCP layer makes a determination whether to trigger a retransmission or continue delivering out-of-order frames to the application. A forced acknowledgement frame is sent for each missing packet until the number missing packets causing forced acknowledgments within the current receive buffer frame exceeds the loss tolerance. This process avoids needless retransmissions and permits the TCP data flow and sliding window to advance uninterrupted, thereby providing substantial performance benefits to network throughput.
A method in a data processing system for managing transport of a data stream over a communication link for an application of the data processing system, said method comprising the steps of:
A data processing system for managing transport of a data stream over a communication link for an application of the data processing system, said system comprising:
An article of manufacture comprising machine-readable medium including program logic embedded therein that causes control circuitry in a data processing system for managing transport of a data stream over a communication link for an application of the data processing system to perform the steps of:
A client data processing system for managing transport of a data stream from a server over a communication link for an application of the client data processing system, said system comprising:
Dependencies are inferred from the claim text.