Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1996-12-31
1999-02-02
Vu, Huy D.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
H04J 302
Patent
active
058674993
ABSTRACT:
An ATM switch contains several interface units (including a source interface unit), several virtual-channel (VC) switches (including a source and destination VC switch), and several virtual-channel identifiers (VCI) for each ATM cell. Configuring the ATM switch causes the source interface unit to assign a starting VCI to a cell to indicate an intended destination for the cell within the ATM switch and to pass the cell to a source VC switch. If the intended destination is an interface unit not directly coupled to the source VC switch, the source VC switch converts the starting VCI to an intermediate VCI that reflects the intermediate and destination locations relative to the intermediate VC switch. A destination VC switch receives the ATM cell and converts the intermediate VCI to a final VCI that reflects the source and the destination locations relative to the destination VC switch, and delivers the ATM cell to the destination.
REFERENCES:
patent: 5271010 (1993-12-01), Miyake et al.
patent: 5303233 (1994-04-01), Sugawara
patent: 5467349 (1995-11-01), Huey et al.
Northern Telecom Limited
Vu Huy D.
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