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<p class="MsoNormal">Since approx. 4am CT, we’ve been seeing 15-30% dropped packets for traffic going from our Chicago Level3 connection to Amazon’s EAST-1 data center. Our San Francisco office (also using Level3) isn’t experiencing a problem. I’ve re-routed
this traffic to our backup Internet connection (Airlogic) for now, and that traffic is getting through just fine. Anyone else seeing this problem? Ticket already opened with Level3, waiting to hear back. Thank you.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here’s the route my traffic is taking (time outs at the bottom are normal, ICMP gets blocked from that point on).<o:p></o:p></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">Tracing route to zioreports.com [75.101.163.221]<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">over a maximum of 30 hops:<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 1 1 ms 1 ms 1 ms ge-6-2-107.car4.Chicago1.Level3.net [4.71.102.161]<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 2 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 3 16 ms 22 ms 25 ms ae-5-5.ebr2.Chicago2.Level3.net [4.69.140.194]<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 4 19 ms 24 ms 25 ms ae-6-6.ebr2.Washington12.Level3.net [4.69.148.145]<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 5 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 6 16 ms 18 ms 23 ms ae-82-82.csw3.Washington1.Level3.net [4.69.134.154]<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 7 16 ms 16 ms 17 ms ae-3-80.edge2.Washington1.Level3.net [4.69.149.142]<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 8 17 ms 17 ms 16 ms AMAZON.COM.edge2.Washington1.Level3.net [4.79.22.74]<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New""> 9 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">10 17 ms 18 ms 17 ms 72.21.222.139<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">11 18 ms 18 ms 18 ms 216.182.224.17<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">12 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">13 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">14 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">15 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">16 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">17 * * * Request timed out.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New"">18 * * ^C<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here are the results of a TCPing to port 443:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:02 Probing 75.101.163.221:443/tcp - Port is open - time=20.926ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:03 Probing 75.101.163.221:443/tcp - Port is open - time=31.168ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:05 Probing 75.101.163.221:443/tcp - Socket is not connected (10057) - time=2012.341ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:07 Probing 75.101.163.221:443/tcp - Port is open - time=31.358ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:08 Probing 75.101.163.221:443/tcp - Socket is not connected (10057) - time=2012.448ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:10 Probing 75.101.163.221:443/tcp - Port is open - time=30.985ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:12 Probing 75.101.163.221:443/tcp - Port is open - time=31.224ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:13 Probing 75.101.163.221:443/tcp - Port is open - time=32.065ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:15 Probing 75.101.163.221:443/tcp - Socket is not connected (10057) - time=2012.375ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">2012:09:27 09:50:17 Probing 75.101.163.221:443/tcp - Port is open - time=31.115ms
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">Ping statistics for 75.101.163.221:443<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333"> 10 probes sent.
<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333"> 7 successful, 3 failed.<o:p></o:p></span></p>
<p class="MsoNoSpacing" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333">Approximate trip times in milli-seconds (successful connections only):<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:8.0pt;font-family:"Courier New";color:#333333"> Minimum = 20.926ms, Maximum = 32.065ms, Average = 20.884ms<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;color:black">----<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="color:black">George Sarlas</span></b><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;color:black">Manager, IT Operations</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;color:black">iRhythm Technologies, Inc.</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;color:black">2 Marriott Dr.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;color:black">Lincolnshire, IL 60069<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;color:black">email: gsarlas@irhythmtech.com<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;color:black">phone: 224-543-4253</span><span style="font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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