Router for establishing connection among a plurality of LANs

Details Router for establishing connection among a plurality of LANs Router for establishing connection among a plurality of LANs

1995-01-20

1996-05-21

Kizou, Hassan

Multiplex communications

Wide area network

Packet switching

370 60, 379220, H04L 1246

Patent

active

055197051

ABSTRACT:
To transmit a data frame between different LANs, a connection is established, through a switching network, between routers respectively connected to the LAN's. The data frame is then forwarded from a source router to a destination router through the established connection. When a data frame is received from a LAN-side transmitter-receiver section in the source router, a network layer section samples from a routing table, according to the destination address included in the data frame, an address of the destination router, and samples a telephone number index corresponding to this gateway from a destination number table. A communication network line control section samples a telephone number corresponding to this index from a telephone number table, places a call in accordance with this telephone number, thereby connecting lines of the communication network, and automatically relays the frame from a LAN-side transmitter-receiver section to a destination LAN through the lines.

REFERENCES:
patent: 4975906 (1990-12-01), Takiyasu et al.
patent: 5060228 (1991-10-01), Tsutsui et al.
patent: 5179555 (1993-01-01), Videlock et al.
patent: 5329527 (1994-07-01), Ujihashi et al.
patent: 5351237 (1994-09-01), Shiohara et al.
patent: 5361259 (1994-11-01), Hunt et al.

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