Method and circuit arrangement for reducing the loss of message

Details Method and circuit arrangement for reducing the loss of message Method and circuit arrangement for reducing the loss of message

1991-04-24

1993-04-06

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

371 82, 371 112, 370 13, 370 601, H04L 122

Patent

active

052009505

ABSTRACT:
In order to reduce the loss of message packets that are transmitted in the course of virtual connections in an asynchronous transfer mode and which comprise a packet header identifying the respective virtual connection, the message packets being respectively augmented by a continuous auxiliary identifier and, after multiplication, being separately transmitted via redundant switching matrices of a packet switching equipment, it is provided that, with reference to the auxiliary identifier, only that message packet transmitted without fault as a first of the multiplied message packets and having an auxiliary identifier that is the next one following the most recently-transmitted message packet is forwarded. In addition, that switching matrix by way of which the transmission of message packets respectively occurs most slowly is identified and message packets that are transmitted via the respective slowest switching matrix as the first of the multiplied message packets are forwarded.

REFERENCES:
patent: 4455645 (1984-06-01), Mijioka et al.
patent: 4730303 (1988-03-01), Suzuki
patent: 5084867 (1992-01-01), Tachibana et al.
Schneider H., "Mit ATM . . . Kommunikation", Telcom Report, vol. 13, No. 1, 1990, pp. 4-7.
Newman P., "A Broad-Band . . . Communications", IEEE Infocom '88, New York, 1988, pp. 0019-0028.

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