红帽全球峰会第 4 章 创建后配置 Overcloud
创建过程会导致 overcloud 具有 IPv6 网络。但是，Overcloud 需要一些创建后配置。
4.1. 创建 Overcloud 租户网络
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Overcloud 需要针对实例使用基于 IPv6 的租户网络。提供 overcloudrc 文件，并在 neutron 中创建初始租户网络。例如：
source ~/overcloudrc neutron net-create default --provider:physical_network datacentre --provider:network_type vlan --provider:segmentation_id 101 neutron subnet-create default 2001:db8:fd00:6000::/64 --ipv6-ra-mode slaac --ipv6-address-mode slaac --ip-version 6 --name default
$ source ~/overcloudrc
$ neutron net-create default --provider:physical_network datacentre --provider:network_type vlan --provider:segmentation_id 101
$ neutron subnet-create default 2001:db8:fd00:6000::/64 --ipv6-ra-mode slaac --ipv6-address-mode slaac --ip-version 6 --name default
这会创建一个名为 default 的基本 neutron 网络。使用 neutron net-list 确认创建的网络：
neutron net-list
$ neutron net-list
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