OVS的组件

admin

The main components of this distribution are:
• ovs-vswitchd, a daemon that implements the switch, along with a companion Linux kernel module for flow-based switching.
• ovsdb-server, a lightweight database server that ovs-vswitchd queries to obtain its configuration.
• ovs-dpctl, a tool for configuring the switch kernel module.
• Scripts and specs for building RPMs for Citrix XenServer and Red Hat Enterprise Linux. The XenServer RPMs allow Open vSwitch to be installed on a Citrix XenServer host as a drop-in replacement for its switch, with additional functionality.
• ovs-vsctl, a utility for querying and updating the configuration of ovs-vswitchd.
• ovs-appctl, a utility that sends commands to running Open vSwitch daemons.
Open vSwitch also provides some tools:
• ovs-ofctl, a utility for querying and controlling OpenFlow switches and controllers.
ovs-pki, a utility for creating and managing the public-key infrastructure

OpenFlow 是用于管理交换机流表的协议，ovs-ofctl 则是 OVS 提供的命令行工具。在没有配置 OpenFlow 控制器的模式下，用户可以使用 ovs-ofctl 命令通过 OpenFlow 协议去连接 OVS，创建、修改或删除 OVS 中的流表项，并对 OVS 的运行状况进行动态监控。