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    <p>So, yeah, Layer1 first, apply your fibre cleaning tools to the
      fibres, SFPs, patch leads etc.</p>
    <p>10gig gets very very twitchy if the cables and SFPs aren't
      cleaned properly...</p>
    <p>Better still, swap out all the patch leads for brand new ones and
      see what happens...</p>
    <p>Mike<br>
    </p>
    <p><br>
    </p>
    <pre class="moz-signature" cols="72">Mike Taylor
The Total Team

</pre>
    <div class="moz-cite-prefix">On 08/11/17 15:59, Robert Hudson wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAOu9xN+f_gwVRhnHZjY1AScudtpnsPM08iaxYEq0SdVk98zTEA@mail.gmail.com">
      <div dir="auto">There is no trial and error. <span
          style="font-family:sans-serif">Start at Layer 1, and work up
          the stack.</span>
        <div dir="auto"><br>
        </div>
        <div dir="auto">Correct setup and good logging should resolve
          it.</div>
        <div dir="auto"><br>
        </div>
        <div dir="auto">There are lots of potential issues. You can cut
          some of them down immediately by selecting hardware on the
          hypervisor supplier's HCL - they should have good drivers for
          the 10Gbps NICs at that point.</div>
        <div dir="auto"><br>
        </div>
        <div dir="auto">Speed/duplex, frame size, etc, all need to be
          consistent across the entire environment. Get wireshark or an
          equivalent involved (using a mirror port if necessary).</div>
        <div dir="auto"><br>
        </div>
        <div dir="auto">If your hardware and software are all under full
          support, involve your vendors in the issue.</div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On 8 Nov. 2017 1:23 pm, "Burt
          Mascareigne" <<a href="mailto:Burt@stormnetwork.com.au"
            moz-do-not-send="true">Burt@stormnetwork.com.au</a>>
          wrote:<br type="attribution">
          <blockquote class="gmail_quote" style="margin:0 0 0
            .8ex;border-left:1px #ccc solid;padding-left:1ex">
            <div link="#0563C1" vlink="#954F72" lang="EN-AU">
              <div class="m_-5962761642232150388WordSection1">
                <p class="MsoNormal">Hi Noggers</p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">We’re having “fun” with 10GB NICS,
                  Switches and SFPs.</p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">We can’t work out which is causing
                  drop out, packets.. we are somewhat certain packets
                  are vanishing into the Ether..</p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">We don’t know which is causing
                  what. </p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">I’m not after troubleshooting, I am
                  curious what people’s view on this. 
                </p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">Do you buy 1 Vendor for all your
                  10GBs, A-Z, is there some hidden rule about mixing
                  vendors, is this all trial and error (and very
                  expensive at best)?</p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">Any recommendations on set ups? 
                  Preferred Vendors, Vender to avoid like the plague.  </p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">We’re talking Servers to Switch
                  kind of thing.  Not SANs etc.  Good ol’ HyperVisor to
                  the switch.</p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal">Thanks </p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal"> </p>
                <p class="MsoNormal"><span> </span></p>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"
                    lang="EN-US"> </span></p>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"
                    lang="EN-US">Regards,</span></p>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"
                    lang="EN-US"> </span></p>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"
                    lang="EN-US"> </span></p>
                <p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"
                      lang="EN-US">Burt Mascareigne<br>
                      Mobile</span></b><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"
                    lang="EN-US"> 0414 450 962   <b>Office</b> (02) 9965
                    5422<br>
                    <b>Address</b> Level 19, 1 O’Connell Street, Sydney
                    NSW 2000<br>
                    <b>Web</b> <a href="http://www.stormnetwork.com.au/"
                      target="_blank" moz-do-not-send="true"><span
                        style="color:#1f497d">http://www.stormnetwork.<wbr>com.au</span></a><br>
                  </span><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d"><img
                      style="width:1.3854in;height:.3229in"
                      id="m_-5962761642232150388Picture_x0020_1"
                      src="cid:part3.C421DA9F.3AA925BA@totalteam.co.nz"
                      alt="01-300x70" class="" width="133" height="31"
                      border="0"></span><span style="color:black"
                    lang="EN-US"></span></p>
                <p class="MsoNormal"> </p>
              </div>
            </div>
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</pre>
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