On Tue, Aug 18, 2009 at 8:41 AM, Monika Bajwa <span dir="ltr"><<a href="mailto:mbajwa75@yahoo.com">mbajwa75@yahoo.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div>Level 3 had a routing loop problem in San francisco on 8/8-8/9. We had issues with </div>
<div>Comcast customers being able to access some websites. Did anyone see anything similar ? </div></div></div></blockquote><div><br>Yes. Started at 3:36am Pacific, and ended at 4:12am.<br><br>Looks like level 3 were advertising their US routes out of London, with latency from non-L3 in San Francisco to multiple Level 3 around 200ms and near 100% packet loss.<br>
<br><br> 2 <a href="http://10gigabitethernet1-1.core1.sjc2.he.net">10gigabitethernet1-1.core1.sjc2.he.net</a> (72.52.81.178) 10.484 ms 13.600 ms 4.616 ms<br> 3 <a href="http://10gigabitethernet1-3.core1.nyc4.he.net">10gigabitethernet1-3.core1.nyc4.he.net</a> (72.52.92.26) 90.816 ms 86.060 ms 79.697 ms<br>
4 <a href="http://10gigabitethernet1-2.core1.lon1.he.net">10gigabitethernet1-2.core1.lon1.he.net</a> (72.52.92.78) 160.023 ms 149.021 ms 157.903 ms<br> 5 * * *<br> 6 * * *<br> 7 * * *<br><br></div></div> Scott.<br>