The network_vlan_ranges configuration option defines a range of VLANs that project networks will be associated with upon their creation when tenant_network_types is vlan. When the number of available VLANs reaches zero, tenants will no longer be able to create VLAN networks.
In the following example, VLAN IDs 40 through 43 are available for tenant network allocation:
network_vlan_ranges = physnet1:40:43
Non-contiguous VLANs can be allocated by using a comma-separated list:
network_vlan_ranges = physnet1:40:43,physnet1:51:55
In this specific deployment, the provider label physnet1 will be used with VLANs 40 through 43. Those VLANs will be automatically assigned to vlan networks upon creation unless overridden by a user ...