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<p style="margin-top:0;margin-bottom:0">Some of it is due to lazy buyers purchasing two IP ports from distinct companies without considring that two ports both located at the site are vulnerable to shared risers or entrance facilities.
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<p style="margin-top:0;margin-bottom:0">- R. <br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> NANOG <nanog-bounces@nanog.org> on behalf of Mike Hammett <nanog@ics-il.net><br>
<b>Sent:</b> Wednesday, December 19, 2018 3:12 PM<br>
<b>To:</b> Mehmet Akcin<br>
<b>Cc:</b> nanog@nanog.org<br>
<b>Subject:</b> Re: How to choose a transport(terrestrial/subsea)</font>
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If people start spot-checking this stuff more regularly, perhaps the companies being verified will take delivering the correct product the first time more seriously.<br>
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Some of it boils down to a lack of data quality about what they actually have.<br>
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Hammett</span><br style="color:rgb(0,0,0); font-family:'Times New Roman'; font-size:medium; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:1; word-spacing:0px">
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Computing Solutions</a><br style="color:rgb(0,0,0); font-family:'Times New Roman'; font-size:medium; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:1; word-spacing:0px">
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<a href="http://www.thebrotherswisp.com/" style="font-family:'Times New Roman'; font-size:medium; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:1; word-spacing:0px" id="LPlnk746555" class="OWAAutoLink" previewremoved="true">The
Brothers WISP</a><br style="color:rgb(0,0,0); font-family:'Times New Roman'; font-size:medium; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:1; word-spacing:0px">
<a href="https://www.facebook.com/thebrotherswisp" style="font-family:'Times New Roman'; font-size:medium; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:1; word-spacing:0px" id="LPlnk908331" class="OWAAutoLink" previewremoved="true"><img style="border:0pt none" src="http://www.ics-il.com/images/fbicon.png"></a><a href="https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg" style="font-family:'Times New Roman'; font-size:medium; font-style:normal; font-variant:normal; font-weight:normal; letter-spacing:normal; line-height:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:1; word-spacing:0px" id="LPlnk162876" class="OWAAutoLink" previewremoved="true"><img style="border:0pt none" src="http://www.ics-il.com/images/youtubeicon.png"></a><span name="x_x"></span><br>
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<b>From: </b>"Mehmet Akcin" <mehmet@akcin.net><br>
<b>To: </b>"James Breeden" <James@arenalgroup.co><br>
<b>Cc: </b>nanog@nanog.org<br>
<b>Sent: </b>Tuesday, December 18, 2018 12:17:42 PM<br>
<b>Subject: </b>Re: How to choose a transport(terrestrial/subsea)<br>
<br>
<div dir="ltr">That's a great example. Thank you James for sharing. I have done so many "GROUND TRUTH" visits where randomly selected certain physical points to validate physical diversity. Have seen several places where dual risers in the building were present
or multiple building entries were available but not used. Ground truth events are certainly important and can be eye opening. It does not necessarily scale as you can't really walk all the fiber A-Z everywhere.. i know.</div>
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<div dir="ltr">On Tue, Dec 18, 2018 at 6:49 AM James Breeden <<a href="mailto:James@arenalgroup.co" target="_blank" id="LPlnk600875" class="OWAAutoLink" previewremoved="true">James@arenalgroup.co</a>> wrote:<br>
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<p style="margin-top:0px; margin-bottom:0px">I can't stress enough the importance of controlling your own route and even cable diversity. Require KMZs of the routes for any services you take (especially single path Wave type services). Put them in the contracts
if you can.</p>
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<p style="margin-top:0px; margin-bottom:0px">I've had at least 1 situation where we had vendor diversity and what was supposed to be route diversity- 3 separate waves coming south and southeast out of a datacenter to 3 separate cities. Imagine my surprise when
we took a outage one day that severed all 3 circuits. Yes all 3 circuits, going to 3 separate cities, on 3 separate carrier/s DWDM platforms, all happened to show up in the same sheath of cable at one location that happened to experience backhoe fade. Was
not a good day.... </p>
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<b>James W. Breeden</b></p>
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<i><span style="font-size:10pt">Managing Partner</span></i></p>
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<i> </i></p>
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<b><span style="font-size:10pt; color:rgb(192,0,0)">Arenal Group:</span></b><span style="font-size:10pt; color:rgb(192,0,0)"> Arenal Consulting Group | Acilis Telecom | Pines Media</span></p>
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<span style="font-size:10pt; color:rgb(127,127,127)">PO Box 1063 | Smithville, TX 78957</span></p>
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<span style="font-size:10pt">Email: <a href="mailto:james@arenalgroup.co" id="LPlnk810897" target="_blank" class="OWAAutoLink" previewremoved="true"><span style="color:windowtext">james@arenalgroup.co</span></a> | office 512.360.0000 | cell 512.304.0745 | <a href="http://www.arenalgroup.co/" id="LPlnk178324" target="_blank" class="OWAAutoLink" previewremoved="true"><span style="color:windowtext">www.arenalgroup.co</span></a></span></p>
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<div id="x_gmail-m_-8618401276787788697divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> NANOG <<a href="mailto:nanog-bounces@nanog.org" target="_blank" id="LPlnk424309" class="OWAAutoLink" previewremoved="true">nanog-bounces@nanog.org</a>>
on behalf of Brandon Martin <<a href="mailto:lists.nanog@monmotha.net" target="_blank" id="LPlnk801360" class="OWAAutoLink" previewremoved="true">lists.nanog@monmotha.net</a>><br>
<b>Sent:</b> Monday, December 17, 2018 4:59:44 PM<br>
<b>To:</b> <a href="mailto:nanog@nanog.org" target="_blank" id="LPlnk409553" class="OWAAutoLink" previewremoved="true">
nanog@nanog.org</a><br>
<b>Subject:</b> Re: How to choose a transport(terrestrial/subsea)</font>
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<div class="x_gmail-m_-8618401276787788697PlainText">On 12/17/18 3:51 PM, Mehmet Akcin wrote:<br>
> <br>
> One question, how much people care about vendor diversity? I do and did <br>
> care. I don�t want to put all my eggs in one basket. Do you care? Thank you<br>
<br>
There are advantages and disadvantages to vendor diversity.<br>
<br>
As advantages, you won't be subject to complete loss of connection <br>
because of a single dispute or provisioning/control plane issue with <br>
that one vendor. You can also more easily pit vendors against each <br>
other for pricing if you are already vendor-diverse.<br>
<br>
As a disadvantage, not only does vendor diversity obviously not imply <br>
route diversity, but it will completely put the onus on you to ensure <br>
route diversity if you want it. With a single vendor, you can demand <br>
that your circuits have route diversity and, assuming you trust them, <br>
they have all the information they need to make that happen for you.<br>
-- <br>
Brandon Martin<br>
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