Colorless, directionless and contentionless multi-degree ROADM has brought a precious switching capability to the lower layer of the optical transport. This switching capability brings now flexibility in the part of network that was previously static and yearly configured on the field. This flexibility is all the more interesting if it can be controlled through dedicated distributed logical functions, called control plane that transforms such optical networks into true service driven-networks.
Such control plane i.e Automatic switch Transport networks (ASTN) or Generalized Multi-Protocol Label Switching (GMPLS) gave a service architecture and components for optical cross-connect equipment vendors to build advanced services in a framework that minimized development efforts.
The IETF Wavelength Switching Optical Network (WSON) working group jointly with ITU-T and the OIF, has defined the essential building blocks to build more advanced features as true differentiators for equipment vendors.
Thanks to the Optical Supervisory Channel (OSC) that inter-connects all the optical devices through the light path as an IP dedicated out of band network, the GMPLS control plane is a turnkey solution for such advanced key services:
Marben has designed and implemented an off-the-shelf GMPLS solution for colorless and directionless multi degree ROADM.
Marben has references among all size of optical cross connects organizations from large ones to smaller ones, on this specific technology. Such large spectrum of customers gives the credit to Marben as being able to work with the whole diversity of actors in such fields.
Marben has first released GMPLS for ROADM in the scope of the ITEA Tbones project in 2003.