Multiplex communications – Wide area network – Packet switching
Patent
1991-03-12
1993-04-13
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 60, H04J 324
Patent
active
052028852
ABSTRACT:
In practice, switching is a continuously changing mixture of point-to-point connections, point-to-multipoint connections with low fanout, and point-to-multipoint connections with high fanout. The switching elements of a switch optimized for point-to-point connections are additionally enabled to copy a few input signals for an arbitrary number of outputs, so that a very large number of copies is attainable for few input signals. This switch is supplemented by a copy switch which serves exclusively to make limited numbers of copies for a large number of input signals, which are then switched in the (group) switch as point-to-point connections. Point-to-point connections are operated as connectionless connections, but outside the switch act as virtual connections. Point-to-multipoint connections are operated as virtual connections (connection-oriented) by means of connection tables.
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Cesar Bozo
Eilenberger Gert
Pfeiffer Bodo
Schrodi Karl
ALCATEL N.V.
Hom Shick
Olms Douglas W.
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