Networking Option 2: Self-service networks

Networking Option 2: Self-service networks

Configure the Networking components on a compute node.

Configure the Linux bridge agent

The Linux bridge agent builds layer-2 (bridging and switching) virtual networking infrastructure for instances including VXLAN tunnels for private networks and handles security groups.

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

    • In the [linux_bridge] section, map the public virtual network to the public physical network interface:

      physical_interface_mappings = public:PUBLIC_INTERFACE_NAME

      Replace PUBLIC_INTERFACE_NAME with the name of the underlying physical public network interface.

    • In the [vxlan] section, enable VXLAN overlay networks, configure the IP address of the physical network interface that handles overlay networks, and enable layer-2 population:

      enable_vxlan = True
      l2_population = True

      Replace OVERLAY_INTERFACE_IP_ADDRESS with the IP address of the underlying physical network interface that handles overlay networks. The example architecture uses the management interface to tunnel traffic to the other nodes. Therefore, replace OVERLAY_INTERFACE_IP_ADDRESS with each node’s own management IP address.

    • In the [agent] section, enable ARP spoofing protection:

      prevent_arp_spoofing = True
    • In the [securitygroup] section, enable security groups and configure the Linux bridge iptables firewall driver:

      enable_security_group = True
      firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

Return to Networking compute node configuration.

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