<div dir="ltr"><div><div>f i r e w a l l ??? <br><br></div>Wireshark may help here. If it is a sea of red then that may indicate issues.<br><br><br></div><div>Also check the measurements. Are all users getting the same? ie 1000 at 1 fps vs 800 @ 10fps ?? so check the bandwidth to account for loss to.<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Oct 2, 2014 at 5:47 PM, Pete Pulliam <span dir="ltr"><<a href="mailto:ppulliam@llnw.com" target="_blank">ppulliam@llnw.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default"><font face="arial, helvetica, sans-serif" size="4">More data points, more refined confusion, about an ubuntu live555 tuning problem.</font></div><div class="gmail_default"><font face="arial, helvetica, sans-serif" size="4"><br></font></div><div class="gmail_default"><p style="margin:0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">When serving from port 8554 (non-priveliged), we are getting 800 connections comfortably (Great!)<br></font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">When serving from port 554 (privileged), we are sucking at less than 100 connections, even with extreme tuning (Terrible!)</font></p><p style="margin:10px 0px 0px;padding:0px"><font face="arial, helvetica, sans-serif" size="4"><font color="#333333"><span style="line-height:20px">No, we can't actually avoid using port 554.</span></font></font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">This is true for two different versions of Ubuntu linux, and has been tested on six different pieces of hardware in three different pops. I've looked for iptables rules. </font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">The test framework uses openRTSP with the last client started returning quality metrics, with one or more VLC clients also playing for visual confirmation.</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><span style="font-family:arial,helvetica,sans-serif;font-size:large">"My Code" refers to a live proxy implementation. </span></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">Here is a simplified view of the test graph:</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4"><b>My Code</b> (based on April edition of live555)</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">root, port 8554, udp -> GREAT! (tested at 800+ players)</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><span style="font-family:arial,helvetica,sans-serif;font-size:large">root, port 554, udp -> terrible</span><font face="arial, helvetica, sans-serif" size="4"><br></font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">root, port 554, rtsp over TCP -> GREAT! (tested at 1000+ players)</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">root, port 554, udp, players all on localhost -> GREAT! (tested at 1000+ players)</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><br></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4"><b>Stock April live555 proxy</b><br>non-privileged, port 8554 -> GREAT!<br>root, port 554 -> terrible</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4"><b>Stock September live555 proxy</b><br>non-privileged, port 8554 -> GREAT!<br>root, port 554 -> terrible</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><br></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">Comments will be greatly appreciated.</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">Thanks,</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4"><br></font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4">Pete</font></p><p style="margin:10px 0px 0px;padding:0px;color:rgb(51,51,51);line-height:20px"><font face="arial, helvetica, sans-serif" size="4"><br></font></p></div>
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