红帽全球峰会2.5. DVR 概述
在 OpenShift 上的 Red Hat OpenStack Services (RHOSO)环境中，分布式虚拟路由(DVR)隔离 control plane 的故障域，并使用第 3 层高可用性(L3 HA)并在每个计算节点上调度路由器。DVR 具有以下特征：
- 东西流量以分布式的方式直接在 Compute 节点上路由。
- 使用浮动 IP 地址的 North-South 流量在 Compute 节点上分发和路由。这要求外部网络连接到每个 Compute 节点。
- 没有浮动 IP 地址(SNAT 流量)的 North-South 流量没有分发。
- OVN 元数据代理在所有 Compute 节点上分布和部署。元数据代理服务托管在所有分布式路由器上。
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