Fast connection setup interfaces using pre-assigned virtual channel identifiers

Abstract From the Canadian patent

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 …