<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Tun,<div><br></div><div>The behavior you're observing is probably not wrong, it just that ConsumerWindow is not equal to TCP. ConsumerWindow has very simplistic congestion-related logic implemented, so it causes such an oscillations and weirdnesses. You may want to consider implementing a more aggressive and more TCP-like consumer, or you can also enable NACKs (<b style="font-family: 'Lucida Grande', Verdana, Geneva, Arial, sans-serif; font-size: 12px; line-height: 15px; text-align: left; background-color: rgb(255, 255, 255); ">EnableNACKs </b>parameter for the forwarding strategy), which may improve (but probably not going to completely solve) your problem.</div><div><br></div><div>---</div><div>Alex</div><div><br><div><div>On Jul 17, 2013, at 8:07 AM, Tun Tun Oo <<a href="mailto:htunhtunu@gmail.com">htunhtunu@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><div><div>Dear Alex<br><br></div>I did an experiment using the 8-node bottleneck scenario with ConsumerWindows application. As topology, I arranged as similar to the 6-node bottleneck scenario.<br></div><div>
C1\ /P1<br> \ /<br></div><div> /-------R1---------R2---------R3-------R4 \<br></div><div> / \ <br>
</div><div>C2 P2<br><br></div><div>All the access link are 10 Mbps/10 ms and all routers are 1 Mpbs/10 ms.<br></div><div>I set the Size Attribute of ConsumerWindow as 2 Mbyte and other setting as default.<br>
</div><div>I found the some strange behaviors from graph-output<br></div><div> First 3 sec simulation two consumers are working as usual.<br></div><div>Next 20 sec only one consumer (c1)can send and receive.<br></div><div>
After 20 sec two consumers can send and receive.<br></div><div>From 23 sec to end of simulation (40 sec) only one consumer (c2) is sending and receiving.<br><br></div><div>I would like to know your advice of what is wrong in this experiment?<br>
</div><div>Thanks in advance.<br><br></div><div>Regards<br><br>TUN<br></div><div><br></div><br><div><br><br><br></div><div><br></div></div>
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