Optical transmission system with bidirectional connection...

Details Optical transmission system with bidirectional connection... Optical transmission system with bidirectional connection...

2006-08-29

2006-08-29

Vanderpuye, Kenneth (Department: 2633)

Optical communications

Fault recovery

Bypass inoperative element

C398S066000, C398S067000

Reexamination Certificate

active

07099577

ABSTRACT:
In order to set up a bidirectional connection path in an optical transmission system composed of a number of switched optical network nodes having a number of unidirectional terminating units, in which each unidirectional terminating unit of a network node is connected to a unidirectional terminating unit of a further network node via a unidirectional connection path section, an adaptation layer is provided via which at least two unidirectional terminating units of an optical network node which have opposite transmission directions are combined to form one bidirectional terminating unit and addressed together. As a result, the setting up of the bidirectional connection paths is improved in a particularly advantageous way in terms of the duration and the signaling complexity.

REFERENCES:
patent: 6839514 (2005-01-01), Sharma et al.
patent: 2003/0161632 (2003-08-01), Wang
“Control of Lightpaths in an Optical Network” Chaudhuri et al., pp. 1-14.
“Extensions to RSVP-TE for Bidirectional Optical Path Setup”, Guo et al, Jan. 2001, pp. 1-5.

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