An Operator view on the Introduction of White Boxes into Optical Networks

Hardware and software disaggregation is a recognized strategy for achieving efficiency and cost reduction within datacentre warehouse. More recently this approach has been applied to high-bandwidth inter-datacenter connectivity at the transport layer. Telecom Operators look with great interest at this approach which promises savings that could make the difference in years of ever decreasing margins on revenues. This paper presents and analyzes how disaggregation models in the wavelength division multiplexing (WDM) transport layer could replace the established aggregated model based on mono-vendor systems. Three optical disaggregation models are presented implying different levels of involvement of the telecom operator in WDM system design, assembly, and integration. The impact on the network lifecycle of each model is then analyzed with particular reference to the roles of the operator, the equipment vendors, and the system integrator. The issue of organizational changes and heavy redefinition of processes is addressed and a comparative techno economic analysis is also offered.