Path switching system and method

Details Path switching system and method Path switching system and method

1995-10-13

1998-07-14

Hsu, Alpus H.

Multiplex communications

Fault recovery

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

370397, 370400, 340827, 39518202, H04L 100

Patent

active

057815283

ABSTRACT:
A path switching system and method for a multiple-node ATM network, in which a plurality of paths can be simultaneously switched preserving proper correspondence thereof. A key choosing unit provided in a node chooses first and second sorting keys out of the virtual paths between the nodes, based on a first and second path information stored in a path information memory unit. Two nodes located at both ends of the route failed due to trouble in the ATM network select a first pair of isolated virtual paths having the first sorting key, which were formerly connected to the failed route, and connect them to a first bypass route. The two nodes then connect in a similar way a second pair of isolated virtual paths both having the second sorting key to a second bypass route.

REFERENCES:
patent: 5016243 (1991-05-01), Fite, Jr.
patent: 5218601 (1993-06-01), Chujo et al.
patent: 5239537 (1993-08-01), Sakauchi
patent: 5241534 (1993-08-01), Omuro et al.
patent: 5412376 (1995-05-01), Chujo et al.

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