红帽全球峰会2.2. ML2/OVN 数据库
在 Red Hat OpenStack Platform ML2/OVN 部署中，网络配置信息通过共享分布式数据库在进程之间传递。您可以检查这些数据库，以验证网络的状态并确定问题。
- OVN 北向数据库
北向数据库 (
OVN_Northbound) 充当 OVN 和云管理系统（如 Red Hat OpenStack Platform (RHOSP)）之间的接口。RHOSP 生成北向数据库的内容。北向数据库包含网络的当前状态，以逻辑端口、逻辑交换机、逻辑路由器等形式显示。每个 RHOSP Networking 服务 (neutron) 对象都在北向数据库的表中表示。
- OVN 南向数据库
-
南向数据库 (
OVN_Southbound) 包含 OVN 系统的逻辑和物理配置状态，以支持虚拟网络抽象。ovn-controller使用此数据库中的信息来配置 OVS，以满足网络服务 (neutron) 要求。
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