Abstract

To reduce network infrastructure cost, network operators want to integrate interoperable and open transponders, since these transponders allow application of the latest technologies over legacy networks at a competitive price. This process of using third-party transponders in a given network is commonly called “alien wavelength” support. Yet, moving toward interoperability raises several challenges: incompatible physical parameters, vendor lock-in, and proprietary software. Manual set up of alien wavelengths has been demonstrated, but automating this process is essential to enable alien wavelength operation in the field. This paper sheds light on the prevailing literature on the concept of alien wavelengths, taking into account many challenges that accompany the concept on its various levels. We particularly focus on several approaches proposed in the literature: protocol message translation, controller cooperation, and open line systems, including our own proposals, an OpenROADM-based approach and a RSVP-TE-based approach. We analyze these approaches with respect to several criteria: applicability to legacy equipment, added operational cost, and the offered level of interoperability and openness. According to these characteristics, we note that, even though some non-interoperable approaches might be applicable to legacy equipment and easy to maintain, they remain infeasible with advanced alien scenarios (high level of interoperability). Finally, a combination has to be made between at least two of the given approaches in order to get the optimal solution.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
On the Impact of Deploying Optical Transport Networks Using Disaggregated Line Systems

João Santos, Nelson Costa, and João Pedro
J. Opt. Commun. Netw. 10(1) A60-A68 (2018)

Vendor-Interoperable Elastic Optical Interfaces: Standards, Experiments, and Challenges [Invited]

Matthias Gunkel, Arnold Mattheus, Felix Wissel, Antonio Napoli, João Pedro, Nelson Costa, Talha Rahman, Gianluca Meloni, Francesco Fresi, Filippo Cugini, Nicola Sambo, and Marc Bohn
J. Opt. Commun. Netw. 7(12) B184-B193 (2015)

Field Trial Demonstration and Evaluation of a Coherent 100G IP Over WDM Alien Wavelength Across 769 km of Multiple WDM Infrastructures Without Regeneration [Invited]

Yu Rong Zhou, Kevin Smith, Roger Payne, Andrew Lord, Walid Wakim, John Keens, and Lars Hanson
J. Opt. Commun. Netw. 5(10) A37-A45 (2013)

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 (5)

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 (2)

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