Seems like there are many moving parts to this. Upstream routes, downstream routes, DNS, and whatever anycast tricks Netflix does.
I would imagine both Level3 and Cogent have on net Netflix servers, and that the worst situation would be the traffic has to go from one of them to the other in order to reach you. Might need to contact Netflix and get their engineers to help you troubleshoot. From: Af [mailto:[email protected]] On Behalf Of Mike Hammett Sent: Friday, November 18, 2016 12:33 PM To: [email protected] Subject: Re: [AFMUG] fast.com speed issues. One thing to keep in mind is where your resolving DNS servers sit. Keep them on-net for the best performance. ----- Mike Hammett <http://www.ics-il.com/> Intelligent Computing Solutions <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> <http://www.midwest-ix.com/> Midwest Internet Exchange <https://www.facebook.com/mdwestix> <https://www.linkedin.com/company/midwest-internet-exchange> <https://twitter.com/mdwestix> <http://www.thebrotherswisp.com/> The Brothers WISP <https://www.facebook.com/thebrotherswisp> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> _____ From: "Bill Prince" <[email protected] <mailto:[email protected]> > To: [email protected] <mailto:[email protected]> Sent: Friday, November 18, 2016 12:17:26 PM Subject: Re: [AFMUG] fast.com speed issues. Netflix may also be caching your IP range for CDN selection. You change from one upstream to another, and they're still distributing from the old place? bp <part15sbs{at}gmail{dot}com> On 11/18/2016 10:05 AM, Mike Hammett wrote: With that connection up, filter Netflix's AS from your Level 3 feed and see if it still works properly with both connections up, but Netflix only available over Cogent? ----- Mike Hammett <http://www.ics-il.com/> Intelligent Computing Solutions <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> <http://www.midwest-ix.com/> Midwest Internet Exchange <https://www.facebook.com/mdwestix> <https://www.linkedin.com/company/midwest-internet-exchange> <https://twitter.com/mdwestix> <http://www.thebrotherswisp.com/> The Brothers WISP <https://www.facebook.com/thebrotherswisp> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> _____ From: "Carl Peterson" <mailto:[email protected]> <[email protected]> To: [email protected] <mailto:[email protected]> Sent: Friday, November 18, 2016 11:06:29 AM Subject: Re: [AFMUG] fast.com speed issues. L3 is hosting most of the Netflix content. They prefer to send it to me over the L3 connection. Someone with a VM connected to L3 in another DC in Baltimore just reached out to me and they are not seeing the same issue so it might be connection specific. On Fri, Nov 18, 2016 at 9:47 AM, Mike Hammett <[email protected] <mailto:[email protected]> > wrote: You must be preferring L3 to Netflix instead of Cogent and L3's connection to Netflix must suck. ----- Mike Hammett <http://www.ics-il.com/> Intelligent Computing Solutions <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> <http://www.midwest-ix.com/> Midwest Internet Exchange <https://www.facebook.com/mdwestix> <https://www.linkedin.com/company/midwest-internet-exchange> <https://twitter.com/mdwestix> <http://www.thebrotherswisp.com/> The Brothers WISP <https://www.facebook.com/thebrotherswisp> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> _____ From: "Carl Peterson" <[email protected] <mailto:[email protected]> > To: [email protected] <mailto:[email protected]> Sent: Friday, November 18, 2016 8:43:34 AM Subject: [AFMUG] fast.com <http://fast.com> speed issues. I just brought up a Gig level3 connection and now fast.com <http://fast.com> shows speed tests in the ~5m range while speedtest.net <http://speedtest.net> shows correct speeds, i.e 200m on a 200m plan. If I drop BGP to Level3, fast.com <http://fast.com> speeds increase to 100m+ Two feeds in the same data center. Each connected to a juniper MX5 with fiber between the MX5s. If I drop BGP on the cogent feed, fast.com <http://fast.com> tests are still around 5m with good speeds to everything else. What seems to be nuts abut this is that Level3 appears to be hosting or directly connected to the netflix content servers that feed data for fast.com <http://fast.com> as far as I can tell. The spike in netflix traffic coming in over the cogent feed is when I dropped bgp on the lvl3 feed to run fast.com <http://fast.com> speed tests. Has anyone else seen this with level3? Could someone else with a level 3 connection test to fast.com <http://fast.com> and let me know what it looks like? <http://127.0.0.1:25017/service/home/%7E/?auth=co&id=1da921bb-b2a8-4368-bc2e-c997a36651f3:103239&part=3> <http://127.0.0.1:25017/service/home/%7E/?auth=co&id=1da921bb-b2a8-4368-bc2e-c997a36651f3:103239&part=2> -- Carl Peterson PORT NETWORKS 401 E Pratt St, Ste 2553 Baltimore, MD 21202 -- Carl Peterson PORT NETWORKS 401 E Pratt St, Ste 2553 Baltimore, MD 21202 (410) 637-3707
