How-To Geek

Internet Backbones

Just like your spinal cord connects the tens of thousands of peripheral nerves in your body, massive high speed fiber optic lines connect major cities and regions. These “internet backbones” link the smaller networks built by individual Internet Service Providers, which in turn connect to the end user. When you send a file to a friend across the country, for example, the data leaves your home network, passes to the local ISP maintained network, and then from your ISP’s local/regional network over one of the major internet backbones until the process is reversed to deliver the data from the backbone, to the regional network, and then down the final leg to your friend’s home network.

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