WEBVTT

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remember blockbuster

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you can laugh but there wasn't quite anything like popping over to one of the

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9 000 locations they had globally renting

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a gently used copy of home alone on vhs

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and settling down in the glow of your crt tube television with a big bucket of

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popcorn of course once the internet came along

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and netflix with it blockbuster stores became all but a memory as there are now

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only a dozen of them left in the united states mostly in alaska due to

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outrageous broadband prices so intuitively you'd think that it would

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take a rather massive enterprise to pull

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the rug out from under literally thousands of brick and mortar stores

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and you'd be right during periods of peak usage

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netflix accounts for over a third of all

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downstream internet traffic in the united states a third

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but exactly how do they fling videos to

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so many people at once do they just have one giant server farm that constantly

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pours episodes of house of cards and family guy onto the internet backbone

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not exactly like many other large sites focused on

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media delivery netflix uses a content

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delivery network or cdn to store and

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transmit movies and tv shows you see

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although netflix's entire library could certainly fit on a few servers housed in

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a single building there are some problems with this approach

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one locations far from that facility

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would suffer from high latency not what you want for streaming video

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two this architecture would be basically the

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definition of a bottleneck since a single connection that fast doesn't

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exist and if it did it would be astronomically expensive

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and three it would mean a single point

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of failure that could cause netflix's entire service to go down if something

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happened at that one location a cdn

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solves these problems by utilizing redundant servers in multiple locations

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to serve many geographic areas more quickly to balance server load between

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them so they don't get overworked and to ensure that there will be backups in

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case of an incident or outage at one or

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even several locations but netflix in particular takes this

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concept a step further because they are so

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big they actually work directly with a number of isps to install their own

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hardware these boxes called open connect appliances at

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either exchange points or even within the isp's facilities themselves

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holding up to 280 terabytes of video each

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these come pre-loaded with close to the entire netflix library so what this

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means for you the consumer is that instead of connecting to some super far

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away land server to watch a movie you're connecting to an appliance at your own

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isp that's much closer cutting down on

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latency and making it so that your netflix data packets don't have to fight

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with all the other internet traffic that is upstream from your isp

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and when it's time for catalog updates netflix pushes them to these appliances

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during the morning when there's typically less internet traffic overall

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meaning that by the time everyone gets home from work ready for a night of

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binge watching the repository of content

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at their isp has already been updated and is ready to go and if lots of people

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fire up their computers at once the appliances are equipped to push out data

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at over 90 gigabits per second the

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equivalent of over 13 000 people

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watching an hd movie at once

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then if that's not enough bandwidth netflix can just install more boxes for

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larger isps that serve greater numbers of people but to keep speeds high the

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open connect boxes only handle storing and transmitting video for everything

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else keeping track of what shows you like recommendations billing logins and

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the search feature netflix uses amazon web services or aws a massive cloud

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processing service that netflix can quickly buy more time on in the form of

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virtualized servers as their customer base and traffic volume grows and it's

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also very failure tolerant due to high amounts of redundancy

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but wait a second amazon has that prime video thing that

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they're trying to get everyone to buy why in the world would they let netflix

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a huge competitor use their servers

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well amazon does make quite a bit of money from their deal with netflix

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possibly into the range of hundreds of millions of dollars and may not want to

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start pushing out certain customers just because they might compete in a

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different market segment i mean think of how samsung manufacturers chips that

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apple puts in their phones

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because if amazon wants to be the go-to company for cloud processing they can't

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behave in that way it's kind of like how comcast won't stop you from watching a

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disney movie through their internet service yet

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do you find yourself racing against the clock as a freelancer or small business

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getting home at the end of the day being like what did i work on how much did i build them for that what's going on

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freshbooks is offering a 30-day unrestricted free trial to our viewers

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and to claim it you just got to go to freshbooks.comtech wiki linked below and

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enter Techquickie in the how did you hear about us section

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so thanks for watching guys if you disliked this video you can hit that button but if you liked it like leave a

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