Wide area communication networking

Details Wide area communication networking Wide area communication networking

1999-04-22

2002-01-01

Kizou, Hassan (Department: 2662)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S467000, C370S468000, C370S485000

Reexamination Certificate

active

06335936

ABSTRACT:

TECHNICAL FIELD
The present invention relates to telecommunication systems, and more particularly to a wide area communication network.
BACKGROUND OF THE INVENTION
Present digital subscriber line (DSL) services are connected from a subscriber location to an internet service provider (ISP). DSL or ADSL (Asymmetric Digital Subscriber Line) provides a large bandwidth pipe that is ideal for communication networking. However, DSL uses the ATM (asynchronous transfer mode) protocol to transport the data over a twisted pair of copper wires. Typically, DSL is run over the local loop portion of the telephone network. ATM is a connection oriented service and most DSL lines are set up as a single permanent virtual circuit to an ISP. This single permanent virtual circuit does not allow other communication applications to use the DSL line. For instance, a user may want to share computer data over the DSL line without running over the internet. In addition, a user may want to use the DSL line for voice or facsimile data. None of these applications are allowed with present DSL services.
Thus there exists a need for a wide area communication network that can run over DSL lines.


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