Joint Optimization of IT, IP and WDM Layers: From Theory to Practice
| Autor: | Miquel Garrich, Manuel Hernandez-Bastida, F. J. Moreno-Muro, Jose Luis Romero-Gazquez, Pablo Pavón Mariño |
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| Rok vydání: | 2020 |
| Předmět: |
Computer science
business.industry Theory to practice 02 engineering and technology 01 natural sciences 010309 optics Footprint 020210 optoelectronics & photonics Capacity planning Wavelength-division multiplexing 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Resource allocation Joint (building) business Virtual network Project approach Computer network |
| Zdroj: | ONDM |
| DOI: | 10.23919/ondm48393.2020.9133026 |
| Popis: | Softwarization of carrier networks is an unstoppable trend, driven by the possibility of instantiating Virtual Network Functions (VNFs) in carrier-owned data centers in their points-of-presence. In optical networks, VNF placement decisions are now intrinsically tight to IP and WDM resource allocations, e.g. in the metro, moving a VNF to a different central office changes the IP flows to carry, which then impacts the optical circuit footprint. In this paper, we review the efforts for a joint or cooperative optimization of the IT, IP and optical resources, both from the offline capacity planning and the online resource allocation points of view. The paper covers both theoretical results and practical implementation initiatives. Among them, we further elaborate on the Metro-Haul project approach, that proposes a common simulation framework for algorithm development and testing, which allows the application of those algorithms in demonstration prototypes. |
| Databáze: | OpenAIRE |
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