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• dhcp-default-lease-time | int

  Default: 43200

  Default lease time (in seconds) to use with OVN's native DHCP service.

• dns-servers | string

  Space-delimited list of DNS servers to use as forwarders if a subnets ``dns_nameservers`` field is empty.

• enable-distributed-floating-ip | boolean

  This is for specifc use cases only, not generally recommended, see note below. Perform NAT action for floating IPs locally on each chassis. Enabling this requires making external Layer3 connectivity available globally and configuring bridge mappings on all chassis in the deployment. Note: OVN gives you distributed East/West and highly available North/South routing by default. You do not need to enable this option to get that. This is for very specific use cases only. Enabling it will create a scaling problem at the physical network layer that needs to be resolved with globally shared Layer2 (does not scale) or tunneling at the top-of-rack switch layer (adds complexity) and is generally not a recommended configuration.

• geneve-vni-ranges | string

  Default: 1001:2000

  Space-delimited list of <vni_min>:<vni_max> tuples enumerating ranges of Geneve VNI IDs that are available for tenant network allocation.

• ovn-dhcp4-global-options | string

  Dictionary of global DHCPv4 options which will be automatically set on each subnet upon creation and on all existing subnets when Neutron starts. An empty value for a DHCP option will cause that option to be unset globally. EXAMPLES: - ntp_server:1.2.3.4,wpad:1.2.3.5 - Set ntp_server and wpad - ntp_server:,wpad:1.2.3.5 - Unset ntp_server and set wpad See the ovn-nb(5) man page for available options.

• ovn-dhcp6-global-options | string

  Dictionary of global DHCPv4 options which will be automatically set on each subnet upon creation and on all existing subnets when Neutron starts. An empty value for a DHCP option will cause that option to be unset globally. EXAMPLES: - ntp_server:1.2.3.4,wpad:1.2.3.5 - Set ntp_server and wpad - ntp_server:,wpad:1.2.3.5 - Unset ntp_server and set wpad See the ovn-nb(5) man page for available options.

• ovn-l3-scheduler | string

  Default: leastloaded

  The OVN L3 Scheduler type to use when scheduling router gateway ports. Available schedulers: - leastloaded - chassis with fewest gateway ports selected (default) - chance - chassis randomly selected

• ovn-metadata-enabled | boolean

  Default: True

  Whether to use the metadata service. Note: The ``ovn-chassis:nova-compute - nova-compute:neutron-plugin`` subordinate relation is a prerequisite for this to work.