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This book constitutes the refereed proceedings of the 20th EUNICE/IFIP WG 6.2, 6.6 Workshop on Advances in Communication Networking, EUNICE 2014, held in Rennes, France, in September 2014. The 21 papers presented were carefully reviewed and selected from numerous submissions and present aspects in the field of information and communication technologies.

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An Orchestrator-based SDN Framework With Its Northbound Interface.- A Tabu Search Optimization for Multicast Provisioning in Mixed-Line-Rate Optical Networks.- Consensus Based Report-Back Protocol for Improving the Network Lifetime in Underwater Sensor Networks.- Merging IEC CIM and DMTF CIM { A step towards an improved Smart Grid information model.- Approaches for offering QoS and specialized traffic treatment for WebRTC.- Identifying Operating System Using Flow-based Trafic Fingerprinting.- Towards an integrated SDN-NFV architecture for EPON Networks.- Towards an integrated SDN-NFV architecture for EPON Networks.- Towards validation of the Internet Census 2012.

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