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neutron/doc/source/install/compute-install-option1-ubuntu.rst
Slawek Kaplonski 842f2f8e6c [Docs] Fix info about provider bridge name in the bridge_mappings 
Previously in all our install guides there were info that name of the
physical interface should be put in the bridge_mappings config option in
ths OVS agent's config. This wasn't correct as bridge_mappings expects
there bridge name instead.

Change-Id: I0698aa4621a15c1927ad2c352501cea02e6ee70c
2023-10-27 17:57:41 +02:00

2.2 KiB
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Networking Option 1: Provider networks

Configure the Networking components on a compute node.

Configure the Open vSwitch agent

The Open vSwitch agent builds layer-2 (bridging and switching) virtual networking infrastructure for instances and handles security groups.

  • Edit the /etc/neutron/plugins/ml2/openvswitch_agent.ini file and complete the following actions:

    • In the [ovs] section, map the provider virtual network to the provider physical bridge:

      [ovs]
bridge_mappings = provider:PROVIDER_BRIDGE_NAME

      Replace PROVIDER_BRIDGE_NAME with the name of the bridge connected to the underlying provider physical network. See environment-networking-ubuntu and ../admin/deploy-ovs-provider for more information.

    • Ensure PROVIDER_BRIDGE_NAME external bridge is created and PROVIDER_INTERFACE_NAME is added to that bridge

      # ovs-vsctl add-br $PROVIDER_BRIDGE_NAME
# ovs-vsctl add-port $PROVIDER_BRIDGE_NAME $PROVIDER_INTERFACE_NAME

    • In the [securitygroup] section, enable security groups and configure the Open vSwitch native or the hybrid iptables firewall driver:

      [securitygroup]
# ...
enable_security_group = true
firewall_driver = openvswitch
#firewall_driver = iptables_hybrid

    • In the case of using the hybrid iptables firewall driver, ensure your Linux operating system kernel supports network bridge filters by verifying all the following sysctl values are set to 1:

      net.bridge.bridge-nf-call-iptables
net.bridge.bridge-nf-call-ip6tables

      To enable networking bridge support, typically the br_netfilter kernel module needs to be loaded. Check your operating system's documentation for additional details on enabling this module.

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