title: Dynamic virtual link mesh topology aggregation in multi-domain translucent WSON with hierarchical-PCE.
abstract: We present a lab-trial of the designed and implemented path computation architecture for multi-domain translucent wavelength switched optical networks (WSON), using hierarchical Path Computation Elements (H-PCE). The approach is based on the dynamic aggregation of the domain topologies, represented as a virtual link meshes at a higher level, in order to perform dynamic domain sequence selection. We detail the extended path computation procedures, involving both domain selections considering inter domain links and segment expansions which are impairment-aware, along with the proposed control plane protocol extensions. We validate the approach with the overall performance of the end to end path computation latency, highlighting the benefits of parallelization.
authors.affiliation: Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), Av. Carl Friedrich Gauss n7, Castelldefels, Spain. ramon.casellas@cttc.es
authors.forename: Ramon
authors.initials: R
authors.lastname: Casellas
authors.forename: Ricardo
authors.initials: R
authors.lastname: Martínez
authors.forename: Raül
authors.initials: R
authors.lastname: Muñoz
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
authors.forename: Takehiro
authors.initials: T
authors.lastname: Tsuritani
authors.forename: Itsuro
authors.initials: I
authors.lastname: Morita
authors.forename: Munefumi
authors.initials: M
authors.lastname: Tsurusawa