openstack/neutron
Code Issues Proposed changes

Merge "[Docs] Fix info about provider bridge name in the bridge_mappings"

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Zuul 2023-10-27 18:20:06 +00:00 committed by Gerrit Code Review
commit 04d982746e
12 changed files with 191 additions and 59 deletions
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21
doc/source/install/compute-install-option1-obs.rst
View File

@ -13,19 +13,30 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface: provider physical bridge:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-obs` the underlying provider physical network.
for more information. See :doc:`environment-networking-obs`
and :doc:`../admin/deploy-ovs-provider` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[securitygroup]`` section, enable security groups and * In the ``[securitygroup]`` section, enable security groups and
configure the Open vSwitch native or the hybrid iptables firewall driver: configure the Open vSwitch native or the hybrid iptables firewall driver:

19
doc/source/install/compute-install-option1-rdo.rst
View File

@ -13,20 +13,31 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface: provider physical bridge:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-rdo` the underlying provider physical network.
See :doc:`environment-networking-rdo` and :doc:`../admin/deploy-ovs-provider`
for more information. for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[securitygroup]`` section, enable security groups and * In the ``[securitygroup]`` section, enable security groups and
configure the Open vSwitch native or the hybrid iptables firewall driver: configure the Open vSwitch native or the hybrid iptables firewall driver:

21
doc/source/install/compute-install-option1-ubuntu.rst
View File

@ -13,19 +13,30 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface: provider physical bridge:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-ubuntu` the underlying provider physical network.
for more information. See :doc:`environment-networking-ubuntu` and
:doc:`../admin/deploy-ovs-provider` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[securitygroup]`` section, enable security groups and * In the ``[securitygroup]`` section, enable security groups and
configure the Open vSwitch native or the hybrid iptables firewall driver: configure the Open vSwitch native or the hybrid iptables firewall driver:

21
doc/source/install/compute-install-option2-obs.rst
View File

@ -13,21 +13,22 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface and configure the IP address of provider physical bridge and configure the IP address of
the physical network interface that handles overlay networks: the physical network interface that handles overlay networks:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
local_ip = OVERLAY_INTERFACE_IP_ADDRESS local_ip = OVERLAY_INTERFACE_IP_ADDRESS
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-obs` the underlying provider physical network.
for more information. See :doc:`environment-networking-obs`
and :doc:`../admin/deploy-ovs-provider` for more information.
Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the
underlying physical network interface that handles overlay networks. The underlying physical network interface that handles overlay networks. The
@ -36,6 +37,16 @@ networking infrastructure for instances and handles security groups.
the management IP address of the compute node. See the management IP address of the compute node. See
:doc:`environment-networking-obs` for more information. :doc:`environment-networking-obs` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[agent]`` section, enable VXLAN overlay networks and enable * In the ``[agent]`` section, enable VXLAN overlay networks and enable
layer-2 population: layer-2 population:

21
doc/source/install/compute-install-option2-rdo.rst
View File

@ -13,21 +13,22 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface and configure the IP address of provider physical bridge and configure the IP address of
the physical network interface that handles overlay networks: the physical network interface that handles overlay networks:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
local_ip = OVERLAY_INTERFACE_IP_ADDRESS local_ip = OVERLAY_INTERFACE_IP_ADDRESS
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-rdo` the underlying provider physical network.
for more information. See :doc:`environment-networking-rdo`
and :doc:`../admin/deploy-ovs-provider` for more information.
Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the
underlying physical network interface that handles overlay networks. The underlying physical network interface that handles overlay networks. The
@ -36,6 +37,16 @@ networking infrastructure for instances and handles security groups.
the management IP address of the compute node. See the management IP address of the compute node. See
:doc:`environment-networking-rdo` for more information. :doc:`environment-networking-rdo` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[agent]`` section, enable VXLAN overlay networks and enable * In the ``[agent]`` section, enable VXLAN overlay networks and enable
layer-2 population: layer-2 population:

21
doc/source/install/compute-install-option2-ubuntu.rst
View File

@ -13,21 +13,22 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface and configure the IP address of provider physical bridge and configure the IP address of
the physical network interface that handles overlay networks: the physical network interface that handles overlay networks:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
local_ip = OVERLAY_INTERFACE_IP_ADDRESS local_ip = OVERLAY_INTERFACE_IP_ADDRESS
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. the underlying provider physical network.
See :doc:`environment-networking-ubuntu` for more information. See :doc:`environment-networking-ubuntu` and
:doc:`../admin/deploy-ovs-provider` for more information.
Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the
underlying physical network interface that handles overlay networks. The underlying physical network interface that handles overlay networks. The
@ -36,6 +37,16 @@ networking infrastructure for instances and handles security groups.
the management IP address of the compute node. See the management IP address of the compute node. See
:doc:`environment-networking-ubuntu` for more information. :doc:`environment-networking-ubuntu` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[agent]`` section, enable VXLAN overlay networks and enable * In the ``[agent]`` section, enable VXLAN overlay networks and enable
layer-2 population: layer-2 population:

21
doc/source/install/controller-install-option1-obs.rst
View File

@ -226,19 +226,30 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface: provider physical bridge:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-obs` the underlying provider physical network.
for more information. See :doc:`environment-networking-obs`
and :doc:`../admin/deploy-ovs-provider` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[securitygroup]`` section, enable security groups and * In the ``[securitygroup]`` section, enable security groups and
configure the Open vSwitch native or the hybrid iptables firewall driver: configure the Open vSwitch native or the hybrid iptables firewall driver:

21
doc/source/install/controller-install-option1-rdo.rst
View File

@ -224,19 +224,30 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface: provider physical bridge:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-rdo` the underlying provider physical network.
for more information. See :doc:`environment-networking-rdo`
and :doc:`../admin/deploy-ovs-provider` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[securitygroup]`` section, enable security groups and * In the ``[securitygroup]`` section, enable security groups and
configure the Open vSwitch native or the hybrid iptables firewall driver: configure the Open vSwitch native or the hybrid iptables firewall driver:

21
doc/source/install/controller-install-option1-ubuntu.rst
View File

@ -225,19 +225,30 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface: provider physical bridge:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-ubuntu` the underlying provider physical network.
for more information. See :doc:`environment-networking-ubuntu`
and :doc:`../admin/deploy-ovs-provider` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[securitygroup]`` section, enable security groups and * In the ``[securitygroup]`` section, enable security groups and
configure the Open vSwitch native or the hybrid iptables firewall driver: configure the Open vSwitch native or the hybrid iptables firewall driver:

21
doc/source/install/controller-install-option2-obs.rst
View File

@ -237,21 +237,22 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface and configure the IP address of provider physical bridge and configure the IP address of
the physical network interface that handles overlay networks: the physical network interface that handles overlay networks:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
local_ip = OVERLAY_INTERFACE_IP_ADDRESS local_ip = OVERLAY_INTERFACE_IP_ADDRESS
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-obs` the underlying provider physical network.
for more information. See :doc:`environment-networking-obs`
and :doc:`../admin/deploy-ovs-provider` for more information.
Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the
underlying physical network interface that handles overlay networks. The underlying physical network interface that handles overlay networks. The
@ -260,6 +261,16 @@ networking infrastructure for instances and handles security groups.
the management IP address of the controller node. See the management IP address of the controller node. See
:doc:`environment-networking-obs` for more information. :doc:`environment-networking-obs` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[agent]`` section, enable VXLAN overlay networks and enable * In the ``[agent]`` section, enable VXLAN overlay networks and enable
layer-2 population: layer-2 population:

21
doc/source/install/controller-install-option2-rdo.rst
View File

@ -239,21 +239,22 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface and configure the IP address of provider physical bridge and configure the IP address of
the physical network interface that handles overlay networks: the physical network interface that handles overlay networks:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
local_ip = OVERLAY_INTERFACE_IP_ADDRESS local_ip = OVERLAY_INTERFACE_IP_ADDRESS
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. See :doc:`environment-networking-rdo` the underlying provider physical network.
for more information. See :doc:`environment-networking-rdo`
and :doc:`../admin/deploy-ovs-provider` for more information.
Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the
underlying physical network interface that handles overlay networks. The underlying physical network interface that handles overlay networks. The
@ -262,6 +263,16 @@ networking infrastructure for instances and handles security groups.
the management IP address of the controller node. See the management IP address of the controller node. See
:doc:`environment-networking-rdo` for more information. :doc:`environment-networking-rdo` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[agent]`` section, enable VXLAN overlay networks and enable * In the ``[agent]`` section, enable VXLAN overlay networks and enable
layer-2 population: layer-2 population:

21
doc/source/install/controller-install-option2-ubuntu.rst
View File

@ -240,21 +240,22 @@ networking infrastructure for instances and handles security groups.
complete the following actions: complete the following actions:
* In the ``[ovs]`` section, map the provider virtual network to the * In the ``[ovs]`` section, map the provider virtual network to the
provider physical network interface and configure the IP address of provider physical bridge and configure the IP address of
the physical network interface that handles overlay networks: the physical network interface that handles overlay networks:
.. path /etc/neutron/plugins/ml2/openvswitch_agent.ini .. path /etc/neutron/plugins/ml2/openvswitch_agent.ini
.. code-block:: ini .. code-block:: ini
[ovs] [ovs]
bridge_mappings = provider:PROVIDER_INTERFACE_NAME bridge_mappings = provider:PROVIDER_BRIDGE_NAME
local_ip = OVERLAY_INTERFACE_IP_ADDRESS local_ip = OVERLAY_INTERFACE_IP_ADDRESS
.. end .. end
Replace ``PROVIDER_INTERFACE_NAME`` with the name of the underlying Replace ``PROVIDER_BRIDGE_NAME`` with the name of the bridge connected to
provider physical network interface. the underlying provider physical network.
See :doc:`environment-networking-ubuntu` for more information. See :doc:`environment-networking-ubuntu`
and :doc:`../admin/deploy-ovs-provider` for more information.
Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the Also replace ``OVERLAY_INTERFACE_IP_ADDRESS`` with the IP address of the
underlying physical network interface that handles overlay networks. The underlying physical network interface that handles overlay networks. The
@ -263,6 +264,16 @@ networking infrastructure for instances and handles security groups.
the management IP address of the controller node. See the management IP address of the controller node. See
:doc:`environment-networking-ubuntu` for more information. :doc:`environment-networking-ubuntu` for more information.
* Ensure ``PROVIDER_BRIDGE_NAME`` external bridge is created and
``PROVIDER_INTERFACE_NAME`` is added to that bridge
.. code-block:: bash
# ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME
.. end
* In the ``[agent]`` section, enable VXLAN overlay networks and enable * In the ``[agent]`` section, enable VXLAN overlay networks and enable
layer-2 population: layer-2 population: