Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2006-01-10
2006-01-10
Pham, Chi (Department: 2667)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S217000, C370S218000
Reexamination Certificate
active
06985435
ABSTRACT:
A method for extending the switching matrix of a communication system without interruption which is effected by reserving space for the routing addresses of the largest extension stage both in the header translation table of the interface devices and in the cell header of each ATM cell, and by providing a system split which is used to replace the old switching matrix assemblies with new switching matrix assemblies in steps, the paths via the new switching matrix assemblies, insofar as they lead to the same output-side interface devices as via the old switching matrix assemblies, being addressable using the same routing addresses.
REFERENCES:
patent: 5325089 (1994-06-01), Goeldner
patent: 5802052 (1998-09-01), Venkataraman
patent: 6049542 (2000-04-01), Prasad
A Scalable ATM Switching System Architecture, Fischer et al., pp. 1299-1307.
Patent Abstracts of Japan—08102749—Apr. 16, 1996.
Belgardt Eckhardt
Rau Peter
Steinigke Klaus
Steizl Rudolf
Bell Boyd & Lloyd LLC
Le Viet
Pham Chi
Siemens Aktiengesellschaft
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