Method for controlling switching in bidirectional...

Details Method for controlling switching in bidirectional... Method for controlling switching in bidirectional...

2008-01-15

2008-01-15

Vu, Huy D. (Department: 2616)

Multiplex communications

Fault recovery

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

C370S222000, C370S223000, C370S225000, C370S221000, C370S351000

Reexamination Certificate

active

07319663

ABSTRACT:
A method for controlling switching in a bidirectional line-switched ring network configured by a plurality of optical fibers and a plurality of nodes, (i) having a first node receive as input an LP-S (or having the first node detect an SF-P) and having a second node adjacent to the first node across a span receive the LP-S (or receive the SF-P), and (ii) having the second node send an SF-R switch request to another node when the second node further detects an SF-R on said span under the above state (i), whereby a method for controlling switching in a bidirectional line-switched ring under conditions where ring switch and LP-S cannot co-exist, but ring switch and SF-P can, is realized, as a whole, in the ring network.

REFERENCES:
patent: 5479608 (1995-12-01), Richardson
patent: 5550805 (1996-08-01), Takatori et al.
patent: 6122250 (2000-09-01), Taniguchi
patent: 6144633 (2000-11-01), Ikeda et al.
patent: 6256292 (2001-07-01), Ellis et al.
patent: 6269452 (2001-07-01), Daruwalla et al.
patent: 6349092 (2002-02-01), Bisson et al.
patent: 6430700 (2002-08-01), Daruwalla et al.
patent: 6456587 (2002-09-01), Taniguchi
patent: 6615362 (2003-09-01), Daruwalla et al.
patent: 6625115 (2003-09-01), Ikeda et al.
patent: 6643041 (2003-11-01), Ikeda et al.
patent: 6735171 (2004-05-01), Takeguchi
patent: 6820210 (2004-11-01), Daruwalla et al.
patent: 2002/0009091 (2002-01-01), Taniguchi
patent: 0 996 309 (2000-04-01), None
patent: 09-18419 (1997-01-01), None
patent: 2000-69067 (2000-03-01), None
patent: 2000-134244 (2000-05-01), None
Notice of Reasons for Rejection dated Sep. 13, 2005 from corresponding Japanese Application 2000-300620 with translation.
Notice of Reasons for Rejection dated Sep. 13, 2005 from corresponding Japanese Application 2000-300620 with translation.

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