Eco-Efficient SDN-VXLAN Architecture for Multi-Tenant Datacenters: Isolation, Automation and Resource Optimization

Traditional data center network architectures face significant challenges in meeting the growing requirements of multi-tenant management, traffic isolation, and dynamic resource optimization in cloud computing environments, while minimizing their environmental impact. This paper presents a resource-aware SDN architecture for multi-tenant data center management, integrating Software-Defined Networking (SDN) and Virtual Extensible LAN (VXLAN) technologies in an eco-efficient approach. Building upon our previous work on Ryu controller optimization, the proposed approach addresses critical issues including dynamic equipment discovery, automated VTEP configuration, and perfect tenant isolation. This architecture contributes to digital sustainability by reducing data center energy consumption through more efficient centralized management, reduced infrastructure duplication, and intelligent optimization of shared resource utilization. The proposed architecture leverages a centralized Ryu controller to orchestrate network resources while VXLAN provides scalable network virtualization with complete traffic separation via Virtual Network Identifiers (VNI). This integrated approach enables better energy efficiency by minimizing operational complexity and promoting optimized utilization of hardware resources. Experimental validation demonstrates perfect isolation with 0% traffic leakage between tenants, automated VTEP discovery, and optimized resource utilization. The solution capitalizes on previously established 174% throughput improvements to deliver a comprehensive multi-tenant architecture suitable for cloud service providers managing multiple clients on shared infrastructure, while ensuring security, performance, scalability, and environmental sustainability requirements.