Optical communications – Fault recovery – Bypass inoperative element
Reexamination Certificate
2006-10-17
2006-10-17
Chan, Jason (Department: 2613)
Optical communications
Fault recovery
Bypass inoperative element
C398S002000, C398S057000, C370S217000, C370S221000
Reexamination Certificate
active
07123831
ABSTRACT:
An optical communication network, an optical information transmission method and network node devices for use in an optical communication network, in which optical signals are exchanged via a first data link between a first network node device and a second network node device with interposition of a number of further interconnected network node devices, in which, after a disturbance on the first data link, a third network node device sends a signaling signal to a fourth network node device connected to the third network node device for setting up a second data link which acts at least partially as a standby for the first data link, which signaling signal contains a parameter (NRR, n) determined by the third network node device on the basis of which it is determined whether the fourth network node device is responsible for setting up the second data link or not.
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patent: 5590118 (1996-12-01), Nederlof
patent: 5812524 (1998-09-01), Moran et al.
patent: 5838660 (1998-11-01), Croslin
patent: 2002/0021466 (2002-02-01), Abrams
(“Approximate Analysis of Time-Synchronous Packet Networks”; Viterbi, A.; Selected Areas in Communications, IEEE Journal on; vol. 4, Issue 6, Sep. 1986, pp. 878-890.
Bischoff Mathias
Charzinski Joachim
Schupke Dominic Axel
Stilling Bernd
Chan Jason
Curs Nathan
Siemens Aktiengesellschaft
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