Behind the Wall: The Internet Is The Computer

Behind the Wall: The Internet Is The Computer
Back in the eighties, John Gage of Sun Microsystems coined the phrase, “The network is the computer.” Today, the services made possible by the Internet and our use of them as individuals and organizations affirm John’s statement perhaps in ways they were not even imaginable three decades ago. Technology trends such as the Cloud, Big ...

Behind the Wall: The Internet is Made of Light

Behind the Wall: The Internet is Made of Light
(this is the third post of the series “behind the wall”. Here are the first and second) The Internet is made of light. That is because the Internet’s backbone is mostly made of optical fibre links that guide light pulses representing data streams.  Optical fiber technology permits the transmission of data over longer distances and ...

Behind the Wall – The structure of the Internet

Behind the Wall - The structure of the Internet
  The Internet is a network of networks. Every machine that is connected to the Internet is part of a network. At home, you are likely connected to an Internet Service Provider (ISP). At work, your computer is part of the organization’s local area network (LAN), a network that is owned and managed by the ...

Behind the Wall – What is the Internet Anyway?

Behind the Wall - What is the Internet Anyway?
It started when my cousin asked, “So what exactly DO you do for a living?” “Do you have a computer tethered by a data cable to the wall?” I responded. “Yes,” “Well my job is to build what goes on behind the wall.” This conversation happened just a few years ago, but the technologies that ...

Multi-homed Internet Connectivity using BGP

Connectivity to the Internet through more than one upstream ISP (Internet Service Provider) is referred to as multi-homing (or dual-homing in case of two ISPs). Multi-homing is generally required to increase the reliability of the Internet connection by reducing the reliance on a single provider and eliminating single-point-of –failure in the IP network. Dual- or ...