Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1995-12-22
1997-12-23
Safourek, Benedict V.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370395, 370397, H04L 1256
Patent
active
057013004
ABSTRACT:
A connectionless server for an ATM network carries out routing so that connectionless data generated in a local area network or a terminal is delivered to the appropriate destination. The connectionless server includes a cell header processor for delivering a destination address and an HCT (Header Conversion Table) write address to a destination address processor whenever a BOM or SSM cell is received, and for delivering the cell and an HCT read address to a header conversion processor whenever any cell is received. The destination address processor performs searching and delivers header conversion information (VPIo/VCIo/MIDo) generated from the destination address. The header conversion processor stores the header conversion information from the destination address process and converts the header value of the cell input from the cell header processor using header conversion information stored in a header conversion table. Since the cell copying function is optionally included in the server in the present invention, it is possible to use the server as a server for performing routing of cells having individual address values, as a multicast server only performing copying of group address cells, and as a compound connectionless sever able to process both group address cells and individual address cells at the same time. Variations in the length of the country code, national destination code, or subscriber number included in the destination address are accommodated by extracting header conversion information using all 64 bits of the destination address.
REFERENCES:
patent: 5119369 (1992-06-01), Tanabe et al.
patent: 5216670 (1993-06-01), Ofek et al.
patent: 5271004 (1993-12-01), Proctor et al.
patent: 5271010 (1993-12-01), Miyake et al.
Do Mi Sun
Jeon Byung Chun
Kim Young Sun
Oh Chang Whan
Park Chun Kwan
Electronics and Telecommunications Research Institute
Korea Telecommunication Authority
Patel Ajit
Safourek Benedict V.
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