Multiperiod Planning of Multilayer IP over Flexgrid WDM Networks with Variable Channel Rates

Conference: Photonische Netze - 16. ITG-Fachtagung
05/07/2015 - 05/08/2015 at Leipzig, Deutschland

Proceedings: ITG-Fb. 257: Photonische Netze

Pages: 6Language: englishTyp: PDF

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Authors:
Autenrieth, Achim; Elbers, Joerg-Peter; Griesser, Helmut; Grobe, Klaus (ADVA Optical Networking SE, Fraunhofer Str. 9a, 82152 Martinsried, Munich, Germany)

Abstract:
In this paper we evaluate the impact of variable channel rates on the design of multilayer IP over WDM networks in a multiperiod network planning approach. After a short summary of the technology options for optical networks with flexible WDM grid, we present current software-defined optical interface technologies implementing these options. Next we introduce planning strategies for multi-line rate IP over flex-grid optical networks based on an auxiliary graph model. Finally, we discuss the impact of higher grooming capacity and variable channel rates on multi-period planning of multiple network layers, specifically IP over WDM. The planning approach is validated in a network study with reference network scenarios analyzing the impact of link lengths and grooming threshold to install bypass grooming links.