VXLAN and EVPN for data center network transformation
Talvinder Singh, Varun Jain, G Satish Babu · 2017
Data Center architectures are continually evolving to address the growing need to handle thousands of servers, Exabyte of storage, Tbps of traffic and multi-tenant environment. It has to be more flexible & scalable to cater to the need of Cloud services to provide Scalable compute, storage & network, Efficient resource utilization, Cost effectiveness, Reliable service and Security. The resources are interconnected through routers and switches that cater the multi-tenant virtual networking need within and across Data Center for which the WAN connectivity should be transparent in the Layer 2. At present the DC Interconnect (DCI) are through IP/MPLS Virtual Private Network (VPN) over which the L2 transparency is achieved majorly by the technologies like VPLS & EoMPLS. This paper focuses majorly on the latest evolving technology to extend VXLAN across DCs with EVPN control plane and concludes with its benefits like faster convergence, efficient, flexible & scalable DCI realized by the implementations of MP-BGP which optimizes unicast flooding, MAC Address purging & apply fine grain policy.