Nejc Fornazarič (2014) Network Virtualization Protocols. EngD thesis.
Abstract
Server virtualization is a widespread and well known technology that has fundamentally changed the operations in data centers. Virtual servers and data storage can be fast and easily provisioned. On the other hand network requires a lot of administrative changes and configurations that increase time of adoption. The consequences of server virtualization are changed requirements for network resources therefore the next logical step is network virtualization. The different approaches for network virtualization are examined with a focus on virtual overlay networks and different tunnelling protocols. Advanced functioning of overlays networks is shown on VXLAN use case. There is also a practical example with configuration and functioning of virtual overlays with Microsoft Hyper-V technology using NVGRE protocol. At the end it is explained when to use virtual overlay networks and which technology to choose.
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