openstack mitaka开启三层网络vxlan

在这之前，先把之前基于flat模式创建的虚机，全部删除

控制节点：

配置

修改/etc/neutron/neutron.conf的[DEFAULT]区域

将

core_plugin = ml2

service_plugins =

修改为

core_plugin = ml2

service_plugins = router

allow_overlapping_ips = True

修改/etc/neutron/plugins/ml2/ml2_conf.ini文件

[ml2]区域修改如下

将

type_drivers = flat,vlan

tenant_network_types =

mechanism_drivers = linuxbridge

修改为

type_drivers = flat,vlan,vxlan

tenant_network_types = vxlan

mechanism_drivers = linuxbridge,l2population

在[ml2_type_vxlan]区域增加一行

vni_ranges = 1:1000

最终的配置文件如下

[root@controller ~]# cat /etc/neutron/plugins/ml2/ml2_conf.ini

[DEFAULT]

[ml2]

type_drivers = flat,vlan,vxlan

tenant_network_types = vxlan

mechanism_drivers = linuxbridge,l2population

extension_drivers = port_security

[ml2_type_flat]

flat_networks = provider

[ml2_type_geneve]

[ml2_type_gre]

[ml2_type_vlan]

[ml2_type_vxlan]

vni_ranges = 1:1000

[securitygroup]

enable_ipset = True

修改/etc/neutron/plugins/ml2/linuxbridge_agent.ini文件

在[vxlan]区域下

将

enable_vxlan = False

修改为

enable_vxlan = True

local_ip = 172.16.0.11

l2_population = True

172.16.0.11这个IP还没有，马上就配，主机规划的第二块网卡，就是现在用的

最终的配置文件如下

[root@controller ~]# cat /etc/neutron/plugins/ml2/linuxbridge_agent.ini

[DEFAULT]

[agent]

[linux_bridge]

physical_interface_mappings = provider:eth0

[securitygroup]

enable_security_group = True

firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

[vxlan]

enable_vxlan = True

local_ip = 172.16.0.11

l2_population = True

[root@controller ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth1

TYPE=Ethernet

BOOTPROTO=static

NAME=eth1

DEVICE=eth1

ONBOOT=yes

IPADDR=172.16.0.11

NETMASK=255.255.255.0

千万不要重启网卡!!!

我们使用ifconfig命令来添加网卡

ifconfig eth1 172.16.0.11 netmask 255.255.255.0

修改/etc/neutron/l3_agent.ini文件

在[DEFAULT]区域下，增加下面两行

interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver

external_network_bridge =

启动

systemctl restart neutron-server.service \

neutron-linuxbridge-agent.service neutron-dhcp-agent.service \

neutron-metadata-agent.service

systemctl start neutron-l3-agent.service

在vi /etc/rc.d/rc.local最后一行加上l3-agent的开机启动

systemctl start neutron-l3-agent.service

计算节点：

配置

修改/etc/neutron/plugins/ml2/linuxbridge_agent.ini文件

在[vxlan]区域下

将

enable_vxlan = False

修改为

enable_vxlan = True

local_ip = 172.16.0.31

l2_population = True

最终的配置文件如下：

[root@compute1 ~]# cat /etc/neutron/plugins/ml2/linuxbridge_agent.ini

[DEFAULT]

[agent]

[linux_bridge]

physical_interface_mappings = provider:eth0

[securitygroup]

enable_security_group = True

firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

[vxlan]

enable_vxlan = True

local_ip = 172.16.0.31

l2_population = True

这个ip暂时没有，所以也需要配置

[root@controller ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth1

TYPE=Ethernet

BOOTPROTO=static

NAME=eth1

DEVICE=eth1

ONBOOT=yes

IPADDR=172.16.0.31

NETMASK=255.255.255.0

千万不要重启网卡!!!

我们使用ifconfig命令来添加网卡

ifconfig eth1 172.16.0.31 netmask 255.255.255.0

测试与控制节点的联通性

启动

重启agent服务

systemctl restart neutron-linuxbridge-agent.service

回到控制节点

vi /etc/openstack-dashboard/local_settings

将263行的

'enable_router': False,

修改为

'enable_router': True,

systemctl restart httpd.service memcached.service

在dashboard上开启三层路由

只有修改了/etc/openstack-dashboard/local_settings，才能开启三层路由器