Create networks

List the extensions of the system:

$ neutron ext-list -c alias -c name

+-----------------+--------------------------+
| alias           | name                     |
+-----------------+--------------------------+
| agent_scheduler | Agent Schedulers         |
| binding         | Port Binding             |
| quotas          | Quota management support |
| agent           | agent                    |
| provider        | Provider Network         |
| router          | Neutron L3 Router        |
| lbaas           | LoadBalancing service    |
| extraroute      | Neutron Extra Route      |
+-----------------+--------------------------+

Create a network:

$ neutron net-create net1

Created a new network:
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | True                                 |
| id                        | 2d627131-c841-4e3a-ace6-f2dd75773b6d |
| name                      | net1                                 |
| provider:network_type     | vlan                                 |
| provider:physical_network | physnet1                             |
| provider:segmentation_id  | 1001                                 |
| router:external           | False                                |
| shared                    | False                                |
| status                    | ACTIVE                               |
| subnets                   |                                      |
| tenant_id                 | 3671f46ec35e4bbca6ef92ab7975e463     |
+---------------------------+--------------------------------------+

	Note
	Some fields of the created network are invisible to non-admin users.

Create a network with specified provider network type:

$ neutron net-create net2 --provider:network-type local

Created a new network:
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | True                                 |
| id                        | 524e26ea-fad4-4bb0-b504-1ad0dc770e7a |
| name                      | net2                                 |
| provider:network_type     | local                                |
| provider:physical_network |                                      |
| provider:segmentation_id  |                                      |
| router:external           | False                                |
| shared                    | False                                |
| status                    | ACTIVE                               |
| subnets                   |                                      |
| tenant_id                 | 3671f46ec35e4bbca6ef92ab7975e463     |
+---------------------------+--------------------------------------+

Just as shown previously, the unknown option --provider:network-type is used to create a local provider network.