Multiplex communications – Wide area network – Packet switching
Patent
1992-01-08
1993-11-16
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 324
Patent
active
052630242
ABSTRACT:
A preliminary operation system in an ATM network capable of preventing the erroneous cell transmissions due to the header transformation operation during the rewriting of the header transformation table, and recognizing cells of different cell types without using additional hardware components. The system includes a header transformation table for storing a header transformation information including a flag for indicating a preliminary operation mode either in a form of a state of the header transformation table or a type of cell for each cell; and a preliminary operation device for transforming a header of each cell into a format suitable for the ATM cell switch by utilizing the header transformation information stored in the header transformation table, according to the indication of the flag.
REFERENCES:
patent: 5029163 (1991-07-01), Chao et al.
patent: 5051989 (1991-09-01), Negishi et al.
patent: 5130984 (1992-07-01), Cisneros
Kumaki Yoshinari
Shobatake Yasuro
Hom Shick
Kabushiki Kaisha Toshiba
Olms Douglas W.
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