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VXLAN-IPSec dual-overlay as a security technique in virtualized datacenter environments

Abstract:

In a modern datacenter environment that needs scalability and a simple addressing scheme, VXLAN is the ideal protocol to provide strong overlay environment supported by an end-to-end connectivity in a L3 underlay fabric. On the other hand, IPSec has been chosen as the second overlay to provide encryption to the communication between terminal devices of the network. This proof-of-concept scenario is implemented as Spine-Leaf architecture, mixing Cumulus Linux appliances (Open-Networking) and Cisco routers, leading to a liable configuration without latency and jitter problems. It proves that Dual-Overlay is a strong solution, it is ideal for DC scenarios.