Today, Open Virtual Networking (OVN) implementation is tied with the assumption that layer 2 switches and layer 3 routers are meant for overlay networks, i.e packets always go encapsulated (using GENEVE, VXLAN or STT) in the physical network. Connectivity to end points on physical network would require gateway devices to do the conversion between overlay and physical network headers (and vice versa).
In this presentation we introduce L2/L3 networking through OVN without overlay. Packets generated from Virtual Machines (VMs) on OVN-managed OVS bridge will not be encapsulated when they go on physical network. We will present following:
a. Limitations in OVN. b. Proposed solutions. c. Packet flow. d. Demo.
