RWIN AT&T Southeast Forum FAQ

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All FAQs » AT&T Southeast Forum FAQ » 2.1 What is? » 6783


RWIN (#6783)
RWIN (TCP Receive Window) is the maximum amount of incoming data (in bytes) that a computer can receive and buffer before it is required to transmit an acknowledgement to the host sender. Reliable TCP transfer uses acknowledgements from the receiver to the sender that it did indeed receive the data correctly. If sender has not received acknowledgement for the first packet it sent, it will stop and wait and if this wait exceeds a certain limit, it may even retransmit. An RWIN that is too large will result in greater loss of data if a packet is lost or damaged. An RWIN that is too small will be very slow as more acknowledgements are required for the same amount of data. To find your optimum RWIN please reference this Tweak FAQ. Andy Houtz DSL feedback form by Andy Houtz edited by FAQFixer last modified: 2006-12-21 23:50:55


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