1. Cisco: ‘The zettabyte era: trends and analysis’ 2017. Available athttp://www.cisco.com/c/en/us/solutions/collateral/service‐provider/visual‐networking‐index‐vni/vni‐hyperconnectivity‐wp.pdf
2. Next generation elastic optical networks: The vision of the European research project IDEALIST
3. I. T. Union: ‘Spectral grids for WDM applications: DWDM frequency grid’. ITU‐T Rec. G.694.1
4. KingD.FarrelA. andLiY.et al.: ‘Generalized labels for the flexi‐grid in lambda‐switch‐capable (LSC) label switching routers. Draft‐farrkingel‐ccamp‐flexigrid‐lambda‐label‐08’ Internet Engineering Task Force 2012. Available athttps://tools.ietf.org/html/draft‐farrkingel‐ccamp‐flexigrid‐lambda‐label‐08