Date Added: Oct 2011
The world has changed a lot in the last couple of decades. Instead of simply dealing with local or regional concerns, many businesses now have to think about global markets and logistics. Many companies have facilities spread out across the country or around the world, and there is one thing that all of them need a way to maintain fast, secure and reliable communications wherever their offices are. Until fairly recently, this has meant the use of leased lines to maintain a Wide Area Network (WAN). A WAN had obvious advantages over a public network like the Internet when it came to reliability, performance and security.