Authoritative DNS is under the control of the content provider, it shouldn't matter whose resolver you are using, unless the content provider is using something like anycast DNS which might infer from the IP address of the resolver which A and AAAA records you should see. As long as your DNS server can be correctly geolocated, then still it is the content provider's decision.
BGP is a different matter, but for a big CDN, the decision will probably still be made based on where they have servers and who they peer with. If they have servers on Cogent and you are reachable via Cogent, it might not matter if BGP says that Telia would be a better route. But the post was about DNS. -----Original Message----- From: AF <af-boun...@af.afmug.com> On Behalf Of Nate Burke Sent: Wednesday, October 10, 2018 11:44 AM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] Tracking Down DualStack Problems I have my Own DNS servers, without a full time packet sniffer, how would you ever figure out what actual DNS lookup it did to find the host? Middle of the day, even a less optimal data center shouldn't be at capacity. The Wife said she was watching VUE on a different TV in the house Yesterday afternoon, and it was buffering as well. So It could be Vue and Their IP6 capacity. Still a pain to track down. On 10/10/2018 11:33 AM, Adam Moffett wrote: > I'm going to be pulling the trigger on dual stack pretty soon. You're > scaring me a little. > > I would think the major CDN's are dual stack by this point. I'm not > sure if it matters, but whose DNS were you using? It could be that > the v6 DNS took you to a less optimal data center than the v4 DNS. > > > On 10/10/2018 12:23 PM, Nate Burke wrote: >> I haven't rolled IPV6 out to customers yet, but I am running >> Dualstack at my house. Native IP6 with my own ARIN Space. I've >> noticed that streaming traffic, youtube, netflix, Playstation VUE, >> Facebook, seem to prefer the IP6 connection. This morning I was >> having all kinds of Buffering problems watching Playstation VUE, (Via >> Amazon FireTV box) I turned off IP6, it automatically switched to the >> IP4 stream, and is now flawless. Those of you running full Dualstack >> deployments, do you have to do IP4/6 troubleshooting? How do you >> manage troubleshooting with the customer to determine if the traffic >> stream is a 4 or 6, and track it down? From the customer >> perspective, "the internet sucks" because things are buffering. >> > > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
