[rfc-dist] RFC 3738 on Wave and Equation Based Rate Control (WEBRC) Building Block

rfc-editor at rfc-editor.org rfc-editor at rfc-editor.org
Fri Apr 23 10:56:46 PDT 2004


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        RFC 3738

        Title:      Wave and Equation Based Rate Control (WEBRC)
                    Building Block
        Author(s):  M. Luby, V. Goyal
        Status:     Experimental
        Date:       April 2004
        Mailbox:    luby at digitalfountain.com, v.goyal at ieee.org
        Pages:      32
        Characters: 82584
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-rmt-bb-webrc-04.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3738.txt


This document specifies Wave and Equation Based Rate Control (WEBRC),
which provides rate and congestion control for data delivery.  WEBRC
is specifically designed to support protocols using IP multicast.  It
provides multiple-rate, congestion-controlled delivery to receivers,
i.e., different receivers joined to the same session may be receiving
packets at different rates depending on the bandwidths of their
individual connections to the sender and on competing traffic along
these connections.  WEBRC requires no feedback from receivers to the
sender, i.e., it is a completely receiver-driven congestion control
protocol.  Thus, it is designed to scale to potentially massive
numbers of receivers attached to a session from a single
sender.  Furthermore, because each individual receiver adjusts to the
available bandwidth between the sender and that receiver, there is the
potential to deliver data to each individual receiver at the fastest
possible rate for that receiver, even in a highly heterogeneous
network architecture, using a single sender.

This document is a product of the Reliable Multicast Transport Working
Group of the IETF.

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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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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