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Versions: 00 01 02 03 04 rfc3465                            Experimental
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        RFC 3465

        Title:      TCP Congestion Control with Appropriate Byte
                    Counting (ABC)
        Author(s):  M. Allman
        Status:     Experimental
        Date:       February 2003
        Mailbox:    mallman@bbn.com
        Pages:      10
        Characters: 23486
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-allman-tcp-abc-04.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3465.txt


This document proposes a small modification to the way TCP increases
its congestion window.  Rather than the traditional method of
increasing the congestion window by a constant amount for each
arriving acknowledgment, the document suggests basing the increase
on the number of previously unacknowledged bytes each ACK covers.
This change improves the performance of TCP, as well as closes a
security hole TCP receivers can use to induce the sender into
increasing the sending rate too rapidly.

This memo defines an Experimental Protocol for the Internet community.
It does not specify an Internet standard of any kind.  Discussion and
suggestions for improvement are requested.  Distribution of this memo
is unlimited.

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