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    <div class="moz-cite-prefix">At home I have Comcast in Colchester,
      VT, I have systems monitoring a bunch of points from outside and
      inside including a RIPE ATLAS PROBE,  using Comcast DNS listed
      below.   None of my systems reported an drop or degradation of any
      service.   Sorry, I do not have a mtr to provide.<br>
      <br>
      -Mike<br>
      <pre class="moz-signature" cols="72">Michael T. Voity
Network Engineer
University of Vermont
</pre>
      On 10/24/2014 8:48 AM, John Neiberger via Outages wrote:<br>
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    <blockquote
cite="mid:CAOQYbjr1W6Eyq7Nzy40AC_d4oiguEGUU+dMiX+Af5a60r4Mqkw@mail.gmail.com"
      type="cite">
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        <div class="gmail_default" style="font-family:tahoma,sans-serif">Frank
          is correct. Bill, please send over a traceroute to 75.75.75.75
          and 75.75.76.76 and I'll forward that information to the DNS
          infrastructure team.</div>
        <div class="gmail_default" style="font-family:tahoma,sans-serif"><br>
        </div>
        <div class="gmail_default" style="font-family:tahoma,sans-serif">Thanks,</div>
        <div class="gmail_default" style="font-family:tahoma,sans-serif">John</div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Fri, Oct 24, 2014 at 6:04 AM, Frank
          Bulk via Outages <span dir="ltr"><<a
              moz-do-not-send="true" href="mailto:outages@outages.org"
              target="_blank">outages@outages.org</a>></span> wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
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                <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bill,</span></p>
                <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
                    believe Comcast has anycasted their DNS servers, so
                    if you could provide a traceroute to each IP then if
                    Comcast personnel are lurking they can better guess
                    which one it is.</span></p>
                <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Frank</span></p>
                <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
                <p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">
                    Outages [mailto:<a moz-do-not-send="true"
                      href="mailto:outages-bounces@outages.org"
                      target="_blank">outages-bounces@outages.org</a>] <b>On
                      Behalf Of </b>Bill McGonigle via Outages<br>
                    <b>Sent:</b> Friday, October 24, 2014 4:34 AM<br>
                    <b>To:</b> <a moz-do-not-send="true"
                      href="mailto:outages@outages.org" target="_blank">outages@outages.org</a><br>
                    <b>Subject:</b> [outages] Intermittent Comcast DNS
                    issues from VT</span></p>
                <span class="">
                  <p class="MsoNormal"> </p>
                  <div>
                    <div>
                      <div>
                        <p class="MsoNormal"
                          style="margin-bottom:12.0pt">Since about
                          midnight (Eastern) Comcast's DNS
                          (75.75.75.7[5,6]) has been giving timeouts and
                          the occasional 'no route to host' from
                          Vermont.   Switched our resolvers to use
                          Google's Public DNS (via the same Comcast
                          line) and all services returned to normal.</p>
                      </div>
                      <p class="MsoNormal" style="margin-bottom:12.0pt">Packet
                        traces aren't interesting (just outbound
                        traffic, no responses) and traceroutes to the
                        cdn usually succeed.  <a moz-do-not-send="true"
                          href="http://dns.comcast.net" target="_blank">dns.comcast.net</a>
                        reports no problems.  Queries at the command
                        line sometimes succeed, sometimes fail,
                        sometimes take a long time to finish.</p>
                    </div>
                    <p class="MsoNormal" style="margin-bottom:12.0pt">-Bill</p>
                  </div>
                </span></div>
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            <br>
            _______________________________________________<br>
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            <a moz-do-not-send="true" href="mailto:Outages@outages.org">Outages@outages.org</a><br>
            <a moz-do-not-send="true"
              href="https://puck.nether.net/mailman/listinfo/outages"
              target="_blank">https://puck.nether.net/mailman/listinfo/outages</a><br>
            <br>
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      <pre wrap="">_______________________________________________
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