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 and handles security groups.
/etc/neutron/plugins/ml2/linuxbridge_agent.inifile and complete the following actions:
[linux_bridge]section, map the provider virtual network to the provider physical network interface:
[linux_bridge] physical_interface_mappings = provider:PROVIDER_INTERFACE_NAME
PROVIDER_INTERFACE_NAMEwith the name of the underlying provider physical network interface. See Host networking for more information.
[vxlan]section, enable VXLAN overlay networks, configure the IP address of the physical network interface that handles overlay networks, and enable layer-2 population:
[vxlan] enable_vxlan = true local_ip = OVERLAY_INTERFACE_IP_ADDRESS l2_population = true
OVERLAY_INTERFACE_IP_ADDRESSwith 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_ADDRESSwith the management IP address of the compute node. See Host networking for more information.
[securitygroup]section, enable security groups and configure the Linux bridge iptables firewall driver:
[securitygroup] # ... enable_security_group = true firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
Ensure your Linux operating system kernel supports network bridge filters by verifying all the following
sysctlvalues are set to
To enable networking bridge support, typically the
br_netfilterkernel module needs to be loaded. Check your operating system’s documentation for additional details on enabling this module.
Return to Networking compute node configuration.