Internetworking

• Internetworking

Internetworking (a combination of the words inter ("between") and networking; it is not internet-working or international-network) is the practice of connecting a computer network with other networks through the use of gateways that provide a common method of routing information packets between the networks. The resulting system of interconnected networks is called an internetwork, or simply an internet.
The most notable example of internetworking is the Internet, a network of networks based on many underlying hardware technologies, but unified by an internetworking protocol standard, the Internet Protocol Suite, often also referred to as TCP/IP.
http://en.wikipedia.org/wiki/Internetworking