Proposal on virtual edge architecture using virtual network function live migration with wavelength ADM

We propose a virtual network edge architecture with a novel wavelength channel add/drop multiplexer configuration using virtualized network functions (VNFs) to save processor and bandwidth resources. The feature of this architecture is VNF live migration with wavelength-division-multiplexing/time-division multiplexing photonic switching technology to use metro network resources efficiently. To reduce the computation of reallocation, the live-migration of a VNF is limited to part of the VNF that contains a larger number of subscribers.