<div><div dir="auto">Single homed on Cogent.* is a problem. Their network is known for being cheap, not resilient. Last time I was involved in a Cogent install for a customer, all of their distribution devices connected to a SINGLE core at a major south-central US carrier hotel. True device redundancy required a wave to another building. Pretty of absurd IMO for a carrier that likes to play “holier than thou” with peering.</div><div dir="auto"><br></div><div dir="auto">-Matt</div></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Mar 29, 2020 at 9:42 AM Mike Hammett <<a href="mailto:nanog@ics-il.net">nanog@ics-il.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div><div style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:rgb(0,0,0)">I did error somewhere, yes. If I didn't read that part, didn't send the right link, etc. Not sure.<div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">Yeah, single-homed on Cogent IPv6 is a problem.</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">Maybe I just assumed that if you had transit from someone, that you got IPv4 and IPv6 service with them. Who doesn't do that?<br><br><div style="font-family:arial,helvetica,sans-serif"><span name="x" style="font-family:arial,helvetica,sans-serif"></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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important;color:rgb(0,0,0)">-----</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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><span style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;float:none;display:inline!important;color:rgb(0,0,0)">Mike 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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="http://www.ics-il.com/" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank">Intelligent 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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="https://www.facebook.com/ICSIL" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/fbicon.png" style="border: 0pt none; font-family: "times new roman";"></a><a href="https://plus.google.com/+IntelligentComputingSolutionsDeKalb" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/googleicon.png" style="border: 0pt none; font-family: "times new roman";"></a><a href="https://www.linkedin.com/company/intelligent-computing-solutions" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/linkedinicon.png" style="border: 0pt none; font-family: "times new roman";"></a><a href="https://twitter.com/ICSIL" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/twittericon.png" style="border: 0pt none; font-family: "times new roman";"></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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="http://www.midwest-ix.com/" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank">Midwest Internet Exchange</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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="https://www.facebook.com/mdwestix" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/fbicon.png" style="border: 0pt none; font-family: "times new roman";"></a><a href="https://www.linkedin.com/company/midwest-internet-exchange" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/linkedinicon.png" style="border: 0pt none; font-family: "times new roman";"></a><a href="https://twitter.com/mdwestix" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/twittericon.png" style="border: 0pt none; font-family: "times new roman";"></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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="http://www.thebrotherswisp.com/" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank">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-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><a href="https://www.facebook.com/thebrotherswisp" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/fbicon.png" style="border: 0pt none; font-family: "times new roman";"></a><a href="https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg" style="font-family:"times new roman";font-size:medium;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px" rel="nofollow noopener noreferrer" target="_blank"><img src="http://www.ics-il.com/images/youtubeicon.png" style="border: 0pt none; font-family: "times new roman";"></a><span name="x" style="font-family:arial,helvetica,sans-serif"></span><br></div><hr id="m_256582985640858270zwchr" style="font-family:arial,helvetica,sans-serif"><div style="font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;color:rgb(0,0,0)"><b style="font-family:Helvetica,Arial,sans-serif">From: </b>"Radu-Adrian Feurdean" <<a href="mailto:nanog@radu-adrian.feurdean.net" target="_blank" style="font-family:Helvetica,Arial,sans-serif">nanog@radu-adrian.feurdean.net</a>><br><b style="font-family:Helvetica,Arial,sans-serif">To: </b>"NANOG" <<a href="mailto:nanog@nanog.org" target="_blank" style="font-family:Helvetica,Arial,sans-serif">nanog@nanog.org</a>><br><b style="font-family:Helvetica,Arial,sans-serif">Sent: </b>Saturday, March 28, 2020 10:22:24 PM<br><b style="font-family:Helvetica,Arial,sans-serif">Subject: </b>Free.fr vs HE.net IPv6 (Was: CISA: Guidance on the Essential Critical Infrastructure Workforce)</div></div></div></div><div><div style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:rgb(0,0,0)"><div style="font-family:arial,helvetica,sans-serif"><div style="font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br><br>On Sat, Mar 28, 2020, at 19:52, Mike Hammett wrote:<br>> <a href="https://radar.qrator.net/as12322/providers#startDate=2019-12-27&endDate=2020-03-27&tab=current" target="_blank" style="font-family:Helvetica,Arial,sans-serif">https://radar.qrator.net/as12322/providers#startDate=2019-12-27&endDate=2020-03-27&tab=current</a><br><br>Did you read the part about *IPv6* traffic ?<br>Your link points to some IPv*4* relationship. Over IPv6, you get this :<br><br><a href="https://radar.qrator.net/as12322/ipv6-providers#startDate=2019-12-29&endDate=2020-03-29&tab=current" target="_blank" style="font-family:Helvetica,Arial,sans-serif">https://radar.qrator.net/as12322/ipv6-providers#startDate=2019-12-29&endDate=2020-03-29&tab=current</a><br><br>Note the "Active Now" part, which is only active for Cogent.<br><br>And then, rather than taking QRator (which does a good job and has interesting information on a number of things - who buys transit from who *NOT* being one of those things - or at least not the public information) as word of absolute truth, did you test that <a href="http://bgp.he.net" target="_blank" style="font-family:Helvetica,Arial,sans-serif">bgp.he.net</a> thinks about this ? Since HE is one of the parties, it does make sense to check their tools to see their point of view.<br><br>Long story short:<br> - Free.fr in known in France (where I happen to live and work) for only having Cogent as a transit for the last few years.<br> - they are also known to peer (like "only exchange own routes and customer routes") with some "very big" networks (usually called "tier-1") : level3 and zayo among them.<br> - Cogent and HE over IPv6 ... I suppose everybody knows the story.....<br> - Free.fr depeered <a href="http://he.net" target="_blank" style="font-family:Helvetica,Arial,sans-serif">he.net</a> about one week ago...<br><br>There have been some exchanges of tentative traceroutes in both directions on FRnOG (French NOG) and things are clear : <a href="http://free.fr" target="_blank" style="font-family:Helvetica,Arial,sans-serif">free.fr</a> and <a href="http://he.net" target="_blank" style="font-family:Helvetica,Arial,sans-serif">he.net</a> cannot exchange IPv6 traffic.<br></div><br></div></div></div></blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Matt Erculiani<div>ERCUL-ARIN</div></div></div>