Network security education is essential in the cyber world. In, traditional computing lab where students needs to go to use an application. Labs have fixed hours of operation create a limitation for the students working on large projects. Stopping the work on the project and coming back the next day to resume the work can interrupt the students flow of thoughts. Here, the SDN-Lab overcomes the burden of traditional lab. It utilizes open-source virtualization technologies to construct a

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... reconfigurable, and contained experimental environment for network security education. The students can remotely access the virtual machines(VMs) and perform the experimental tasks. Software-defined networking is an architecture purporting to be dynamic, manageable, cost-effective, and adaptable, seeking to be suitable for the high-bandwidth, dynamic nature of today's applications. SDN architecture decouple network control and forwarding functions, enabling network control to become directly programmable and the underlying infrastructure to be abstracted from applications and network services. When implemented through open standards, SDN simplifies network design and operation because instructions are provided by SDN controllers instead of multiple, vendor-specific devices and protocols. SDN-Lab can be used as a network security experimental environment where we can perform penetration testing, security testing etc. The SDN-Lab can deploy high-availability and redundancy features to provide a more reliable platform, automatic resource management and load balancing, support of offline VM migration to lab machines SDN-lab can be set up using local desktop machines.