Incontri del giovedì di Cnr-Ieiit: "SDN control of disaggregated optical networks"
Il 09/03/2023 ore 17.30 - 18.30
Virtuale su piattaforma Microsoft Teams
L'Istituto di elettronica e di ingegneria dell’informazione e delle telecomunicazioni del Consiglio Nazionale delle Ricerche (Cnr-Ieiit) organizza una serie di seminari con frequenza bisettimanale denominata "Incontri del giovedì" in cui vengono affrontate con il supporto di relatori di rilievo nell'ambito della ricerca scientifica, accademica ed industriale le tematiche caratterizzanti l'Istituto stesso, con una visione trasversale ai domini applicativi ed agli ambiti tecnologici ed uno sguardo rivolto alla loro evoluzione.
Giovedì 9 Marzo 2023 si svolgerà il seminario dal titolo “SDN control of disaggregated optical networks”, con relatore l' Ing. Alessio Giorgetti (Cnr-Ieiit).
Abstract:
The utilization of disaggregated equipment in optical transport networks is emerging as an attractive solution to bring flexibility and prevent network operators from vendor lock-in dependencies. The disaggregation concept can be applied vertically (as in the most traditional SDN approach) to separate the control plane from the data plane, and horizontally aiming at decomposing the optical data plane in its single components. The first step for enabling a vertically disaggregated optical network is the standardization of well-defined interfaces between the data plane and the network controller, thus bypassing proprietary network management systems. To this end, relevant work is ongoing in the definition of multi-source agreements and YANG models for disaggregated devices. This way, an SDN controller could build on standard YANG models and procedures to consistently control, configure and monitor the optical network. This approach also enables operators and service providers to rapidly innovate the offered services through the implementation of specific applications on the top of the SDN controller. The first level of horizontal disaggregation ipresents the data plane as a set of terminal devices (i.e., transponders) and Optical Line Systems (OLS). With this solution, the operators are enabled to independently upgrade transponders, which typically have a shorter technological life-cycle. Alternatively, the data plane can be disaggregated in transponders and reconfigurable optical add-drop multiplexers (ROADMs), and, going deeper in the disaggregation process, each ROADM can be further decomposed in a set of ROADM degrees or even more elementary components (e.g., optical filters and optical amplifiers). As an example, there are already commercially available products disaggregating the optical nodes in single node degrees. This talk reports on the state-of-art, current trends, potentials and limitations of the SDN control applied to disaggregated optical networks.
Organizzato da:
CNR - Istituto di Elettronica e di Ingegneria dell'Informazione e delle Telecomunicazioni
Referente organizzativo:
Sandro Ballestrasse
CNR - Istituto di Elettronica e di Ingegneria dell'Iinformazione e delle Telecomunicazioni
incontri.delgiovedi@ieiit.cnr.it
Modalità di accesso: registrazione / accredito
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