The ovn image includes: ovn-central: Runs northd daemon, Northbound DB (high-level config), and Southbound DB (low-level OVS config) for centralized virtual network management. ovn-controller: Local daemon on each node, add flow rules to OVS.
OVN for DPF VPC
OVN (Open Virtual Network) is a series of daemons that translates virtual network configuration into OpenFlow, and installs them into Open vSwitch. It is licensed under the open source Apache 2 license.
OVN provides a higher-layer abstraction than Open vSwitch, working with logical routers and logical switches, rather than flows. OVN is intended to be used by cloud management software (CMS). For details about the architecture of OVN, see the ovn-architecture manpage. Some high-level features offered by OVN include:
- Distributed virtual routers
- Distributed logical switches
- Access Control Lists
- DHCP
- DNS server
Like Open vSwitch, OVN is written in platform-independent C. OVN runs entirely in userspace and therefore requires no kernel modules to be installed.
For more information, check the upstream repository ovn.
License
The OVN is licensed under Apache 2.0.