6:32:00 PM
valgeo
How this page got to you? The World Science Festival 2012 wrapped up in New York recently, and one of the videos produced for it seeks to explain how web pages reach your screen ...
The process starts with a request packet that gets sent off in the direction of whichever server a particular website is hosted on. In the video, a user in the UK is loading the World Science Festival’s website, which is hosted on a server in LA. The packet flows down the copper wires locally, then rockets across the Atlantic on fiber optic cables.
When the packet arrives in the US, it stops off at 60 Hudson Street in New York. This is one of the largest connection hubs in the world, and the largest on the US East Coast. 60 Hudson routes the request on to LA where the server can read the request and send the page.
It’s not as easy as just shooting the page along in a single packet. The page comes across in many smaller packets that are routed in various ways. The goal is just to get all the pieces back across the ocean to the original requestor in the most efficient way possible. Most of the packets will again pass through 60 Hudson on their way back to the UK.
A lot happens when you request a webpage, but it all goes down in about a second. That sort of puts things in perspective and makes it harder to get upset when your page is loading a little slow.
Source : geek.com
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