How Traffic Moves over the Internet GroupC 4E6 s1160149 Asami Nakashima s1160156 Miki Nakayama s1160163 Ryosuke Nitta s1160167 Kazunori Hashimoto Group Web Presentation Week12
Access concentrator When your modem dials into your Internet service provider, it connects to a special router. The router called an access concentrator .
ISP's data center ISP's main data center is connected to the POPs. ISP's data center locate email servers.
Internet backbone Each ISP must have a high-speed connection to one of the major Internet backbone. There are very high-speed fiber-optic connections that link major ISP data center, universities, and government agencies. All major backbones are interconnected, so that if one fails, the others automatically pick up the traffic.
Cable TV provider A growing number of home users get their Internet access from their local cable TV Company using cable modem servide. The cable provider acts as its own ISP, and maintains a high-speed connection to an Internet backbone.
Communication tower Several wireless ISPs provide wireless Internet access using wireless PDA devices such as the Palm VII.