Abstract

This paper presents different methods to solve the network reconfiguration problem in wavelength-switching optical networks. The network reconfiguration problem consists of finding a sequence of operations that can be used to migrate traffic from one lightpath configuration to another. Operations correspond to establishing or tearing down a given lightpath. The methods presented exploit for the first time (to our knowledge) the structure of the underlying combinatorial problems in order to divide the reconfiguration process into independent stages, decreasing the amount of disrupted traffic. Our numerical results show that our approaches can reduce the number of disruptions up to 10% more than the traditional approach (computing the minimum feedback vertex set of the dependency graph), while releasing 40% of seized resources during the reconfiguration process. The methodology presented can be easily adapted to other circuit-switching technologies, such as flexpaths.

© 2013 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Lightpath Reconfiguration in WDM Networks

Fernando Solano and Michał Pióro
J. Opt. Commun. Netw. 2(12) 1010-1021 (2010)

Virtual Network Reconfiguration in Elastic Optical Path Networks for Future Bandwidth Allocation

Toshihiko Ohba, Shin’ichi Arakawa, and Masayuki Murata
J. Opt. Commun. Netw. 8(9) 633-644 (2016)

Virtual Topology Reconfiguration in Optical Networks by Means of Cognition: Evaluation and Experimental Validation [Invited]

Natalia Fernández, Ramón J. Durán Barroso, Domenico Siracusa, Antonio Francescon, Ignacio de Miguel, Elio Salvadori, Juan Carlos Aguado, and Rubén M. Lorenzo
J. Opt. Commun. Netw. 7(1) A162-A173 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (23)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription