# LSSDNF: A Lightweight Secure Software Defined Network Framework for Future Internet in 5G-6G
## 3 Proposed Approach
The results demonstrate that the suggested framework performs better than the conventional single-controller-SDN architecture in terms of throughput, bandwidth fluctuation, and jitter. When three SDN controllers fail in

Figure 2:4 Jitter fluctuation single-controller SDN vs. Multi-controller SDN. a master-slave configuration in the suggested framework, the multi-controller performs better in terms of bandwidth, transfer rate, and jitter fluctuation. Hence, single points of failure are protected by this dual refrigeration system. If the master controller shuts down for any reason, the following slave controller steps in to act as the master controller until the previous master controller comes back online and begins acting as planned. This ensures that the entire topology is not affected. The network so continues to operate normally as if nothing unexpected had occurred. Conceptualization, S.S. and V.M. ; methodology, S.S. and V.M. ; audit parameters, S.S., V.M., and S.N. ; validation, S.S. and V.M. ; formal analysis, S.S. and V.M. ; investigation, S.S. and V.M. ; resources, S.S. and V.M. ; writing--original draft preparation, S.S.; writing--review and editing, S.S., V.M., and S.N. ; supervision, S.S. and S.N. All authors have read and agreed to the published version of the manuscript. This research received no external funding. Not applicable. This research was supported by the Thapar Institute of Engineering and Technology, Patiala, under the seed money research project grant scheme with Ref. TU/DORSP/7/2/2022. The authors declare that they have no conflicts of interest. ## References

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