Wide area network (wan) arrangement

Details Wide area network (wan) arrangement Wide area network (wan) arrangement

H - Electricity

04

L

H04L 12/66 (2006.01) H04Q 11/04 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2112915

- 14 - A Wide Area Network (WAN) Arrangement Abstract A WAN (106) is formed using Frame Relay Protocol and a telephone network interface unit. An originating LAN (100) sends a message to a router (140) which communicates with a telephone network interface (148) unit using Frame Relay Protocol. The telephone network interface unit determines the destination of a packet received from the router (140) by interpreting the Frame Relay Protocol, and it associates a phone number with that destination. The interface unit (148) uses the phone number to establish at least one DSO connection over a digital telephone network (130) to a destination network interface (158). A destination network interface unit (158) receives the packet from the digital telephone network (130) and provides the packet to a router (150) which interfaces to the destination LAN (102). The network interface units add or drop additional DSO channels as required by the traffic load and thereby provide variable bandwidth. (FIG. 4)

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