Switching algorithm for optical fiber networks

Optical communications – Fault recovery – Bypass inoperative element

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07433593

ABSTRACT:
A method, system and egress switching node for maintaining a network connection in an optical network reduces the number of spans needed for reestablishing a network connection. The invention learns which channels are used by the network connection and propagates such channel assignment data to the switching nodes for storage therein. When a span failure occurs, a notification is sent to the switching nodes identifying which span has failed. The switch nodes use the notification and channel assignment data to perform protection switching such that the rerouted network connection selects the channel that was used by the network connection on the failed span. Likewise, the egress switching node uses the selected channel to drop the network connection from the protecting fibers. This enables a network connection to travel a shorter distance after a protection switch.

REFERENCES:
patent: 5412652 (1995-05-01), Lu
patent: 5647035 (1997-07-01), Cadeddu et al.
patent: 6246667 (2001-06-01), Ballintine et al.
patent: 6917759 (2005-07-01), de Boer et al.
patent: 7054558 (2006-05-01), De Girolamo et al.
patent: 7072580 (2006-07-01), Arecco et al.
patent: 2001/0005358 (2001-06-01), Shiozawa
patent: 2004/0246892 (2004-12-01), Elie-Dit-Cosaque et al.
The Authoritative Dictionary Of IEEE Standards Terms, Standards Infiormation Network IEEE Press; 7thEd., p. 1183.
Microsoft Computer Dictionary, Microsoft Press A Division of Microsoft Corporation, 5THEd, p. 152.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Switching algorithm for optical fiber networks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching algorithm for optical fiber networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching algorithm for optical fiber networks will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4012706

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.