|HOWtd| We are looking for Staff,more details in Forum Administration|HOWtd|Any problems contact staff_96@ymail.com |HOWtd|
Widespread geographic networks (WAN - Wide Area Networks) covers a very wide geographical area - a country or continent.
WAN network engages a number of machines used to run user programs.
These machines are called, usually, the host machine or final systems.
Host machines are connected by a communication subnet which is responsible for transporting messages from host to host. Subnet consists of two distinct components: transmission lines and switching elements. Switching elements are specialized computers used to connect two or more transmission lines. When data arrives over a transmission line, switching element must choose a new line to relay data on. They also occur as packet switching nodes, intermediate systems, data switches and routers. WAN networks connecting multiple LANs and the Internet connects multiple WANs.
WAN network engages a number of machines used to run user programs.
These machines are called, usually, the host machine or final systems.
Host machines are connected by a communication subnet which is responsible for transporting messages from host to host. Subnet consists of two distinct components: transmission lines and switching elements. Switching elements are specialized computers used to connect two or more transmission lines. When data arrives over a transmission line, switching element must choose a new line to relay data on. They also occur as packet switching nodes, intermediate systems, data switches and routers. WAN networks connecting multiple LANs and the Internet connects multiple WANs.
