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Tag Archives: Overlay


What is it? NVGRE is a software controlled network virtualization framework that supports multi-tenancy in networks using Generic Routing Encapsulation (GRE) What problem does it solve? NVGRE is Microsoft’s solution to allow seamless migration of workloads between public and private clouds. It offers the same benefits associated with other Virtualization Overlays, …

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What is it? Virtual Extensible LAN (VXLAN) is an overlay technology that allows layer 2 traffic to extend over a shared layer 3 infrastructure by means of encapsulation. What problems does it solve? VXLAN like many overlay solutions was set out to solve several issues. To increase the number of VLANs …

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Network Virtualization Overlay (NVO)

What is it? Network Virtualization Overlay (NVO) is where an independent virtual network infrastructure is created on top of an physical network infrastructure. This concept of an overlay network is not new, but it has become more popular within Data Centers over the past couple of years. Most businesses will have encountered …

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