Process for synchronizing data streams containing ATM-cells

Details Process for synchronizing data streams containing ATM-cells Process for synchronizing data streams containing ATM-cells

2005-07-12

2005-07-12

Nguyen, Chau (Department: 2663)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S395100, C370S503000

Reexamination Certificate

active

06917582

ABSTRACT:
In the Prior Art, redundant data streams comprising ATM cells are in turn merged in that an attempt is made to produce synchronism. This, however, lasts very long as a rule. The invention provides alleviation in that both data streams are written into buffer memories and the stored ATM cells are checked for equality. Transmission sequence numbers thus need not be provided.

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Ohta, H. et al., “ATM Hitless Line Protection Switching Method for Forced Switch Commands”, Electronics & Communications in Japan, Part I—Communications, vol. 79, No. 11, Nov. 1996, pp. 52-64; XP 000647052.
Yamaguchi, K. et al., “Transport Systems Based on Flexible, Non-Stop Architecture”; Proceedings of the Global Telecommunications Conference, (1993), pp. 1468-1475, XP000436060.
Ohta, H. et al., “Hitless Line Protection Switching Method for ATM Networks”, Proceedings of the International Conference on Communications, (1993), pp. 272-276, XP000371105.

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