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<BODY bgColor=#eaeaea><FONT size=2>Heejune AHN£¬ </FONT>
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<DIV><FONT size=2>¡¡¡¡Hi,according to RFC 3448, section 3.2.1, each data
packet sent by the data sender contains the sender's current estimate
</FONT></DIV>
<DIV><FONT size=2>of the round trip time, which will be used by the
receiver.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=ËÎÌå size=2>======== 2004-07-05 11:19:40
========</FONT></DIV>
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<DIV><FONT size=2> Hi, </FONT><FONT size=2>while implementing
a streaming server, I am currently doing TFRC transport adaptation
module.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>After reviewing several papers of Sally Floyd and
A. Zakhor, I sill cannot implement it just because</FONT></DIV>
<DIV><FONT size=2>I cannot understand one thing:</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>"How to calculate Round-trip time in
Receiver?"</FONT></DIV>
<DIV><FONT
size=2>--------------------------------------------</FONT></DIV>
<DIV><FONT size=2>it is written in her paper how to get Roud Trip time
in Sender, measuing the feedback for same sequence num.</FONT></DIV>
<DIV><FONT size=2>(now my quetion, when the Rx decide to reply
it?)</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I need this value because </FONT></DIV>
<DIV><FONT size=2>"Rx should report feedback to the sender at least once
per round-trip time if it has received packets in that
interval"</FONT></DIV>
<DIV><FONT size=2>(page 3 of SIGCOM 2000 publication,
Equation-based Congestion control for Unicast Application, Sally Floyd
et al).</FONT></DIV>
<DIV><FONT size=2>I checked it from D. Tan and A. Zakhor papers in IEEE
multimedia, but the mechanism is not clear.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Maybe I can check with Sally's ns-2 simulation script,
but it is too much her computer-setting dependent script.</FONT></DIV>
<DIV><FONT size=2>I think it is not a big problem on their work, but I
just want to know how they implemented it.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Thanks.</FONT></DIV>
<DIV><FONT
size=2></FONT> </DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE></FONT></DIV>
<DIV>
<P><FONT size=2>= = = = = = = = = = = = = = = = = = = = = = </FONT></P>
<P><FONT size=2>Lv Qian,</FONT></P>
<P><FONT size=2>School of Computer Engineering,</FONT></P>
<P><FONT size=2>Nanyang Technological University</FONT></P>
<DIV><FONT size=2>2004-07-05</FONT></DIV>
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