Tag Archives : down January 2012

The MegaUpload Shutdown Effect

By: Jose -

The popular file sharing site MegaUpload was shut down by the US FBI and Department of Justice on Thursday, January 19, and executives from the company were taken into custody. This story is very well covered by the Wall Street Journal and includes a copy of the indictment for your reading.

As you would expect, this was a wildly popular site with users from all over the world. So much so that even notable celebrities appear in a video discussing MegaUpload, almost endorsing it. Previous work by Arbor Networks showed that content providers and hosting sites like MegaUpload are the new “Hyper Giants”. With enough global data, you can actually see the traffic drop when the shutdown occurs. Based strictly on the traffic rates it appears that the shutdown started just after 19:00 GMT on January 19, with traffic plummeting down over the next two hours. The graphic here shows three main client regions – Asia-Pacific, Europe, and the US.

Over the past 24 hours, the top countries (in aggregate) using MegaUpload were the United States, France, Germany, Brazil, Great Britain, Turkey, Italy, and Spain, although dozens more countries are represented.

As for the traffic drop off, we’re not the only ones to notice. As seen on Twitter, South America experienced a dramatic traffic drop at about the same time, presumably due to this MegaUpload shutdown. Furthermore, we’re seeing reports of a fake MegaUpload site that is supposedly a malware infection site.

Friends of mine from elsewhere in the world have been joking that the Internet seems to be running a bit smoother today. That may be, given how much bandwidth appears to have been freed up.

MegaUpload

The Great GoogleLapse

By: Craig Labovitz -

Web sites go down. Circuits fail. Network engineers goof router configs. And few of these outages ever make the nightly news…

But if you happen to be Google and your content constitutes up to 5% of all Internet traffic, people notice.  Network engineers around the world frantically email traceroutes to mailing lists. IRC channels fill with speculation (“definitely was a DDoS attack”, “no, a worm”, “it was ISP xxx’s  fault!”). And end users Twitter (a lot).

So what does it look like when 5% of the Internet disappears on an otherwise uneventful Thursday morning? The below graph shows average traffic across 10 tier1/2 ISPs in North America from Google’s network (ASN 15169). Outage began roughly at 10:15am and lasted through 12:15pm EDT.

Looking at the data, most large transit providers appear to have been impacted (e.g., Level3, AT&T, etc.). Other providers (e.g. large consumer DSL / Cable) showed no drop in traffic from/to Google.

Looking at BGP (below snapshot is from Arbor’s Routeviews Servers) we see a lot of churn in Google’s BGP routes around the outage timeframe — one prefix I choose at random flaps across half a dozen providers before getting withdrawn.

In a recent official company blog post, Google blamed some combination of airplanes and BGP for the outage.

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