<P>Hi,</P>
<P>I just read a paper published on InfoComm'03 named "<A href="http://einstein.seas.upenn.edu/mnlab/paper/split_hops-report.pdf">Achieving Near-Optimal Traffic Engineering Solutions for Current OSPF/IS-IS Networks</A>", it is stated that</P>
<P>only 15% BW overprovisioning is needed to guarantee as low as 3ms e2e delay requirement. </P>
<P>My question is:</P>
<P>1) a network optimization result with both network topology, routing path preassumed reliable? How could we consider routing path changes when link BW is overprovisioned?</P>
<P>2) what's the state of link BW in current backbone network ? is there more than 15% BW idled? </P>
<P>Thanks in advance.</P>
<P> </P>
<P> </P><BR><BR>Jing Shen<br><br>State Key Lab of CAD&CG<br>ZheJiang University(YuQuan)<br>HangZhou, ZheJiang Province 310027<br>P.R.China<p><br><hr size=1><b>Do You Yahoo!?</b><br>
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