Fast connection setup interfaces using pre-assigned virtual chan

Details Fast connection setup interfaces using pre-assigned virtual chan Fast connection setup interfaces using pre-assigned virtual chan

1994-05-27

1995-10-31

Marcelo, Melvin

Multiplex communications

Wide area network

Packet switching

370 941, 3701101, H04L 1256

Patent

active

054636213

ABSTRACT:
In a packet-switched network in which a source station dissembles a packet into multiple cells and transmits them in sequence to a destination station, each switching system pre assigns a unique set of VCI to each outgoing line. Corresponding respectively to incoming lines, each switching system includes line interface units for receiving normal signaling cells, a fast signaling cell and a data cell. Each interface unit includes a memory for storing the VCIs pre-assigned to the outgoing lines and a header translation table for defining relationships between a set of incoming VCIs and a corresponding set of outgoing VCIs. The interface unit assigns one of the stored VCIs to the fast signaling cell according to its destination, establishes a connection in the translation table between an incoming VCI and the assigned outgoing VC, and assigns an outgoing VCI of the established connection to the data cell according to an incoming VCI contained in the data cell. A central controller is provided for assembling the normal signaling cells into a signaling packet and assigning one of the stored VCIs to each of the normal signaling cells comprising the signaling packet. A self-routing switch provides routing of any of the cells according to a VCI assigned thereto.

REFERENCES:
patent: 5325356 (1994-06-01), Lyles
patent: 5333131 (1994-07-01), Tanabe et al.

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