Description of Virtual Network for Open vSwitch configuration options

Configuration option = Default value	Description
[ovn]
neutron_sync_mode = log	(StrOpt) The synchronization mode of OVN with Neutron DB. off - synchronization is off log - during neutron-server startup, check to see if OVN is in sync with the Neutron database. Log warnings for any inconsistencies found so that an admin can investigate repair - during neutron-server startup, automatically create resources found in Neutron but not in OVN. Also remove resources from OVN that are no longer in Neutron.
ovsdb_connection = tcp:127.0.0.1:6640	(StrOpt) The connection string for the native OVSDB backend
ovsdb_connection_timeout = 60	(IntOpt) Timeout in seconds for the OVSDB connection transaction