红帽全球峰会3.2. 示例 2：启用网络分布式虚拟路由(DVR)
OpenStack Networking (neutron) API 的 Heat 模板(puppet/services/neutron-api.yaml)包含一个参数，用于启用和禁用分布式虚拟路由(DVR)。参数的默认值为 false。但是，您可以在环境文件中使用以下内容启用它：
parameter_defaults:
NeutronEnableDVR: true
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