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Behind the Internet Curtain

INTERNET USAGE In the past two decades Internet usage has become nearly ubiquitous: BEHIND THE INTERNET CURTAIN Homes with a Computer: Homes with Internet Capacity How Information Travels From Your 8.2% 78.9% 18% 74.8% Computer To Data Centers In a sense, the Internet is a new frontier. It started as a realm with no rules, and gradually over the last three decades, a system with structure has developed. Data centers run the Internet, but how is information delivered from data centers to your computer screen? 1984 2012 1977 2012 94.8% of households with a computer use it to connect to the Internet. 6. INTERNET EXCHANGE POINT THE PATHWAY 1. HOME COMPUTER 4. INTERNET SERVICE PROVIDER 7. INTERNET BACKBONE ISP 2. ROUTER 5. POINT OF PRESENCE 8. DATA CENTERS 3. MODEM 1. Home Computer 2. Router 3. Modem 4. ISP A device that modulates your digital information into analog information that can be read by A specialized computer that takes the data packet from your computer and deciphers how to send it to its proper location. It makes sure information goes only where necessary, which is highly important when dealing with massive volumes of data. You require information from the Internet. You open up your Inter- The company that provides you with access to the Internet. Your information is sent through fiber optic cables to a POP. net browser and connect to the World Wide Web. How do you your ISP. get there? 5. POP 6. IXP 7. Internet Backbone 8. Data Centers A local access point for the ISP's larger network. A POP may actu- ally reside in rented space owned by the telecommunications carri- Through the IXP you reach the larger networks of the Internet. The IXP is a physical hub where information is exchanged from A fiber optic trunk line that is capable of moving significant amounts of data at significant speeds. A massive, physical collection of interconnected information tech- nology servers that are easily accessible by a user through a network. er to which the ISP is connected. one ISP's network to another From here the ISP connects to through Internet Backbones. an NAP through a T3 line. Today there are many companies that operate their own high-capacity backbones, and all of them interconnect at various NAPS (Network Access Points) around the world. In this way, everyone on the Internet, no matter where they are and what company they use, is able to talk to everyone else on the planet. 1 THE INTERNET BACKBONE The First Backbone: Evolution of Speed: While many of these speeds are still not available to the public, infrastructure is rapidly approaching this as a possibility. NSF OC-768 40,000Mbps (40Gbps) OC-192 10,000Mbps (10Gbps) OC-48 2,488 Mbps The NSFNET was created by the National Science Foundation in 1987. OC-12 622 Mbps OC-3 155 Mbps It connected OC-1 52 Mbps ТЗ 45 Mbps As technology advances, Internet bandwidth will need to accommodate larger files being sent through new services across the web: Torrents: Streaming Services Video Game Networks 150 BitTorrent" hulu NETFLIX, XBOX LIVE. smaller networks on a T1 line at a speed of 1.544 Mbps STEAM Vuze™ The Backbone Today: The Internet Backbone can quickly connect to all of these through advanced fiber optic cable networks. Microsoft Google There are = 100,000 servers = 100,000 servers = 100,000 servers 1,000,000 900,000 450,000 509,147 servers servers servers data centers worldwide. at 10-20 data centers. at 13 data centers. at 7 data centers. IP – INTERNET PROTOCOL How does the Internet, which is essentially a giant network of smaller networks, function de- spite being made of millions of different parts? Put simply, through Internet Protocol (IP). What is IP? IP Address Your computer's unique identifying number that allows it to be seen by and communicate across various networks. • A standardiged language of communication for the Internet. Using this system, computers worldwide are on the same playing field of communication. Specifically, IP designates how packets of informa- tion are transmitted over the Internet. We live in an age where you can access information stored thousands of miles away in less than a second from the comfort of your home. And now you know the journey that takes place with each click of your mouse. Sources: 1 Brought to you by telx | the interconnection & data center company •..... Transmission System

Behind the Internet Curtain

shared by WpromoteInc on Mar 28
Computers come in many shapes and sizes these days, but one thing is constant no matter what the device a person is using, the data has to make a long and highly structured journey to be delivered to ...


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