Data switching device

Details Data switching device Data switching device

1992-12-08

1994-12-27

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 581, 340827, H04L 122, H04L 1250

Patent

active

053771800

ABSTRACT:
Switching modules of a digital network switch have switching ports connected to external ports by a connections network. The modules are arranged in groups. Some of the connection ports of the switching modules in each group are designated for back-up use within that group. In the event of failure of a module in a group, the connections network serving that group is controlled to connect back-up ports in that group to the affected external ports.

REFERENCES:
patent: 4276637 (1981-06-01), Le Dieu
patent: 4455645 (1984-07-01), Mijioka et al.
patent: 4679186 (1987-07-01), Lea
patent: 5014261 (1991-05-01), Shinbashi et al.
patent: 5146452 (1992-09-01), Pekarske
patent: 5182764 (1993-01-01), Askew et al.
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