<div dir="ltr"><div>Any time one of the Alexa top 10 sites has an outage, you can expect to see a ripple effect of errors reported to DownDetector across other unrelated sites.</div><div><img src="cid:ii_kovwedro0" alt="20210518.png" width="147" height="562"></div><div><br></div><div>For example:<br></div><div><div> - when users can't get to any major service, they often blame their ISP, accounting for the spikes to Spectrum, Comcast, Cox, AT&T, Verizon, T-Mobile, CenturyLink, Frontier</div><div> - those eyeballs have to go somewhere, so they're going to visit other services, leading to a surge of traffic to them. A fixed percentage error rate will lead to a surge in errors corresponding to the surge in usage. This may account for the spikes to Reddit, Netflix, Xbox Live, Discord, Roku, Twitter, Facebook, Cloudflare, and Snapchat</div><div></div></div><div><br></div><div>Figuring out whether you're looking at a ripple effect, or a nation-state attack on a core router, is left as an exercise for the reader. In this case, it was just a YouTube issue: <a href="https://twitter.com/TeamYouTube/status/1394862840960327680">https://twitter.com/TeamYouTube/status/1394862840960327680</a></div><div></div><div><br></div><div>Damian</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, May 18, 2021 at 9:43 PM Jay R. Ashworth via Outages <<a href="mailto:outages@outages.org">outages@outages.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">----- Original Message -----<br>
> From: "Damian Guppy" <<a href="mailto:the.damo@gmail.com" target="_blank">the.damo@gmail.com</a>><br>
> Sent: Wednesday, May 19, 2021 12:10:16 AM<br>
<br>
> Given the current world events, wouldn't be surprised if a Nation State was<br>
> trying to do some censorship and fat fingered their peering links.<br>
<br>
Not impossible, and part of the reason I posted it. Multiple focal centers<br>
generally denote an attack -- though the topology of the Internet can make it<br>
difficult to discern whether there were in fact multiple focal centers -- no<br>
doubt Renesys, and some of our regulars here, will have more data.<br>
<br>
Which we'll put on -discussion. :-)<br>
<br>
Cheers,<br>
-- jra<br>
-- <br>
Jay R. Ashworth Baylink <a href="mailto:jra@baylink.com" target="_blank">jra@baylink.com</a><br>
Designer The Things I Think RFC 2100<br>
Ashworth & Associates <a href="http://www.bcp38.info" rel="noreferrer" target="_blank">http://www.bcp38.info</a> 2000 Land Rover DII<br>
St Petersburg FL USA BCP38: Ask For It By Name! <a href="tel:(727)%20647-1274" value="+17276471274" target="_blank">+1 727 647 1274</a><br>
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</blockquote></div>