<div dir="auto"><div>Grab an optical fibre scope while you're at it. It's amazing how dirty your cable ends and recepticals can actually be.</div><div dir="auto"><br></div><div dir="auto">And for the love of $deity, make sure nobody's done something as stupid (been there, done that - I had an excuse because I was new to working with fibre, the major carrier datacentre operators less so - yes, they did it too) as plugging SC cables into SCA recepticals or vice versa.</div><div dir="auto"><br></div><div dir="auto">Have you done optical loss testing? Some network gear can tell you directly what your tx and rx power levels are.<br><div class="gmail_extra" dir="auto"><br><div class="gmail_quote">On 9 Nov. 2017 7:03 am, "Mike Taylor" <<a href="mailto:mtaylor@totalteam.co.nz">mtaylor@totalteam.co.nz</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<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<font color="#888888"><br>
</font></p><font color="#888888">
<p><br>
</p>
<pre class="m_3483318052147019316moz-signature" cols="72">Mike Taylor
The Total Team
</pre></font><div class="elided-text">
<div class="m_3483318052147019316moz-cite-prefix">On 08/11/17 15:59, Robert Hudson wrote:<br>
</div>
<blockquote type="cite">
<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" target="_blank">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_3483318052147019316m_-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"><span style="color:#1f497d">http://www.stormnetwork.co<wbr>m.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_3483318052147019316m_-5962761642232150388Picture_x0020_1" src="cid:part3.C421DA9F.3AA925BA@totalteam.co.nz" alt="01-300x70" 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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