Learning OpenStack Networking - Third Edition

Generic Network Virtualization Encapsulation (GENEVE)

GENEVE is an emerging overlay technology that resembles VXLAN and GRE, in that packets between hosts are designed to be transmitted using standard networking equipment without having to modify the client or host applications. Like VXLAN, GENEVE encapsulates packets with a unique header and uses UDP as its transport mechanism. GENEVE leverages the benefits of multiple overlay technologies such as VXLAN, NVGRE, and STT, and may supplant those technologies over time. The Open Virtual Networking (OVN) mechanism driver relies on GENEVE as its overlay technology, which may speed up the adoption of GENEVE in later releases of OpenStack.