Neutron - flat模式

# 修改/etc/neutron/plugin.ini文件（网络节点）
[ml2]
type_drivers = flat,vlan,vxlan,gre
tenant_network_types = flat
mechanism_drivers =openvswitch
[ml2_type_flat]
flat_networks = default
[ovs]
enable_tunneling = False
integration_bridge = br-int
bridge_mappings =default:br-flat
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
enable_security_group = True
enable_ipset = True

# 修改/etc/neutron/plugin.ini文件（计算节点）
[ml2]
type_drivers = flat,vlan,vxlan,gre
tenant_network_types = flat
mechanism_drivers =openvswitch
[ml2_type_flat]
flat_networks = default
[ovs]
enable_tunneling = False
integration_bridge = br-int
bridge_mappings =default:br-flat
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
enable_security_group = True
enable_ipset = True

# 修改网络配置(网络节点和计算节点)
[root@openstack-1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-br-data
DEVICE=br-flat
BOOTPROTO=static
ONBOOT=yes
NM_CONTROLLED=no
IPADDR=192.168.1.120
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
TYPE=OVSBridge
DEVICETYPE=ovs
		
[root@openstack-1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
NM_CONTROLLED=no
TYPE=OVSPort
DEVICETYPE=ovs
OVS_BRIDGE=br-flat

ovs-vsctl add-br br-flat (网络节点和计算节点)
ovs-vsctl add-br br-int
ovs-vsctl add-port br-flat eth0
service neutron-openvswitch-agent restart


# multi flat network的配置
[root@node-120 ~]# cat /etc/neutron/plugin.ini
[ml2]
type_drivers = flat,vlan,vxlan,gre
tenant_network_types = flat
mechanism_drivers =openvswitch
[ml2_type_flat]
flat_networks = telecom,unicom   # 配置两个phynetwork_id
[ovs]
enable_tunneling = False
integration_bridge = br-int
bridge_mappings = telecom:br-telecom,unicom:br-unicom
[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
enable_security_group = True
enable_ipset = True

[root@node-120 ~]# ovs-vsctl show
539bfcd0-17a0-41b2-ae47-87061857301b
    Bridge br-telecom
        Port br-telecom
            Interface br-telecom
                type: internal
        Port phy-br-telecom
            Interface phy-br-telecom
                type: patch
                options: {peer=int-br-telecom}
        Port "eth0"
            Interface "eth0"
    Bridge br-unicom
        Port br-unicom
            Interface br-unicom
                type: internal
        Port "eth3"
            Interface "eth3"
        Port phy-br-unicom
            Interface phy-br-unicom
                type: patch
                options: {peer=int-br-unicom}

参考链接：http://www.server-world.info/en/note?os=CentOS_7&p=openstack_kilo&f=15