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Abstract: Secondary Distribution Electrical Power Grid (SDEPG) is the last mile of power grid connecting end users. Transforming a traditional SDEPG to a smart SDEPG demands for a need to have resilient communication in order to improve electrical power reliability. The ubiquitous nature of SDEPG requires combination of wired and wireless communication network technologies at all to facilitate the transformation, therefore communication network resilience solution must accommodate this requirement and use attributes at all communication network layers to effectively achieve optimally resilient network. Software Defined Networking (SDN) offers flexibility, making it superior in enhancing communication network resilience. This study present extensive survey on the SDN based communication network resilience solutions for SDEPG. The survey involved analysis of published materials from libraries and databases related to SDN based resilience solution by comparing different approaches adopted by researchers based on resilience discipline, target application, considered failure scenarios, target communication network technologies and communication network layer attributes used to deliver the suggested solution. The study is finalized by summarizing the current solutions challenges and proposes an approach that leverages SDN to deliver cross layers resilience solution to facilitate SDEPG transformation to smart grid.

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