红帽全球峰会8.3. 创建额外的浮动 IP 地址网络
只要满足以下条件，浮动 IP 网络可以使用任何网桥，而不只局限于
br-ex：
- 在网络环境文件中，
NeutronExternalNetworkBridge被设置为"''"。 - 在部署的过程中已映射了额外的网桥。例如，把一个名为
br-floating的新网桥映射到floating物理网络：openstack overcloud deploy --templates -e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e ~/templates/network-environment.yaml --neutron-bridge-mappings datacenter:br-ex,floating:br-floating
$ openstack overcloud deploy --templates -e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e ~/templates/network-environment.yaml --neutron-bridge-mappings datacenter:br-ex,floating:br-floatingCopy to Clipboard Copied! Toggle word wrap Toggle overflow
在创建 Overcloud 后创建浮动 IP 网络：
neutron net-create ext-net --router:external --provider:physical_network floating --provider:network_type vlan --provider:segmentation_id 105 neutron subnet-create --name ext-subnet --enable_dhcp=False --allocation-pool start=10.1.2.51,end=10.1.2.250 --gateway 10.1.2.1 ext-net 10.1.2.0/24
$ neutron net-create ext-net --router:external --provider:physical_network floating --provider:network_type vlan --provider:segmentation_id 105
$ neutron subnet-create --name ext-subnet --enable_dhcp=False --allocation-pool start=10.1.2.51,end=10.1.2.250 --gateway 10.1.2.1 ext-net 10.1.2.0/24
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