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<DIV><FONT size=2>Hello,</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>It is well known that link bandwidth of the Internet is
growing very fast.</FONT></DIV>
<DIV><FONT size=2>Does the file size also grow at the same speed? Or is it much
slower?</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I have once read a Kleinrock's paper saying that future large
bandwidth delay network must deal with the case where file size is relatively
smaller than BDP(bandwidth delay product).</FONT></DIV>
<DIV><FONT size=2>However, I have found that file size also
increases.</FONT></DIV>
<DIV><FONT size=2>In near 1991, file size (transferred by FTP) must have been
100B in average and mostly below 100 KB, according to Fig.2 (c) in Tcplib
documentation </FONT><A
href="http://irl.eecs.umich.edu/jamin/papers/tcplib/"><FONT
size=2>http://irl.eecs.umich.edu/jamin/papers/tcplib/</FONT></A><FONT
size=2>.</FONT></DIV>
<DIV><FONT size=2>In near 1997, it increases to 240KB in average, according to
Table 1 of Claffy's paper "the nature of the beast: recent traffic measurements
from an Internet backbone," Inet, '98 at
http://www.caida.org/outreach/papers/Inet98/</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I think this issue is related with the performance of TCP
congestion control in the large BDP environment, because small file size means
that performance impact of initial slow-start gets more stressed and
congestion-avoidance gets less important.</FONT></DIV>
<DIV><FONT size=2>I hope you will make kind comments.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Thanks and regards.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Soo-hyeong</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2></FONT> </DIV>
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