Method and circuit arrangement for disturbance-free redirection

Details Method and circuit arrangement for disturbance-free redirection Method and circuit arrangement for disturbance-free redirection

1995-05-11

1997-05-06

Safourek, Benedict V.

Multiplex communications

Fault recovery

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

370390, 370503, 34082501, H04L 122

Patent

active

056278225

ABSTRACT:
Within a cell-oriented communication network, a switching equipment (CCa) located at the start of a path pair duplicates a message cell stream supplied thereto for redirection. The message cell streams resulting therefrom are separately supplied to a switching equipment (CCb) located at the end of the path pair via an active path (AP) and via an alternate path (EP) of the path pair allocated thereto. A decentralized synchronization means (SY) or, respectively, a plurality of decentralized synchronization means (SY1, SY2 or, respectively, SY3, SY4) is or, respectively, are provided therein, a synchronization of the two message cell streams ensuing therein while initially forwarding the message cell stream of the active path. After such a synchronization, only the message cell stream of the alternate path is then forwarded.

REFERENCES:
patent: 5241534 (1993-08-01), Omuro et al.
patent: 5268897 (1993-12-01), Komine et al.
patent: 5479396 (1995-12-01), Kusano
"Hitless Line Protection Switching Method for ATM Networks", H. Ohta et al, IEEE International Conference on Communications ICC (1993), pp. 272-276.

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