红帽全球峰会第 18 章 配置 allowed-address-pairs
allowed-address-pairs 允许您指定 mac_address/ip_address（CIDR）对，使它们可以在不考虑子网的情况下通过一个端口。这会启用对一些协议的使用，如 VRRP，它会在两个实例间浮动一个 IP 地址，从而实现快速故障切换功能。
注意
当前，只有以下插件支持 allowed-address-pairs 扩展：ML2、Open vSwitch 和 VMware NSX。
18.1. 基本的 allowed-address-pairs 操作
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创建一个带有 allowed-address-pairs 的端口：
neutron port-create net1 --allowed-address-pairs type=dict list=true mac_address=<mac_address>,ip_address=<ip_cidr>
# neutron port-create net1 --allowed-address-pairs type=dict list=true mac_address=<mac_address>,ip_address=<ip_cidr>18.2. 添加 allowed-address-pairs
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neutron port-update <port-uuid> --allowed-address-pairs type=dict list=true mac_address=<mac_address>,ip_address=<ip_cidr>
# neutron port-update <port-uuid> --allowed-address-pairs type=dict list=true mac_address=<mac_address>,ip_address=<ip_cidr>注意
OpenStack Networking 不允许设置和一个端口的 mac_address 和 ip_address 相同的 allowed-address-pair。这是因为，带有这个 mac_address 和 ip_address 的网络流量已被允许通过这个端口，所以这样的配置不会起任何作用。
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