EVPN control plane for Geneve

This document describes how Ethernet VPN (EVPN) control plane can be used with Network Virtualization Overlay over Layer 3 (NVO3) Generic Network Virtualization Encapsulation (Geneve) encapsulation in NVO3 solutions. EVPN control plane can be used by a Network Virtualization Endpoints (NVEs) to express as well what Geneve tunnel option TLV(s) that they can transmit and/or receive.