Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Supervisory management and lightpath restoration for wavelength routing networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Tong, F. ; Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China ; Yum, T.-S. ; Chi-Chun Hui

We present here a supervisory management scheme and two complete lightpath restoration algorithms based on integer linear programming. The supervisory management uses a hierarchical approach with a network manager supervising all node managers, each of which monitors the health status of all network components and subsystems on that link. Extension to the existing CCS7 protocol is proposed to include the surveillance information in the signaling network. For the restoration algorithms, their performances are compared in three networks commonly cited for testing purposes. In general, the source-based restoration algorithm performs better than that based on the link-based restoration algorithm, but requires much longer computation time. Also, the former restoration algorithm ensures the fairness in satisfying lightpath demands within the network.

Published in:

Lightwave Technology, Journal of  (Volume:18 ,  Issue: 9 )