OpenStack Networking (neutron) is the component of OpenStack that provides the Networking service API and a reference architecture that implements a Software Defined Network (SDN) solution. The Networking service provides full control over creation of virtual network resources to tenants. This is often accomplished in the form of tunneling protocols that establish encapsulated communication paths over existing network infrastructure in order to segment tenant traffic. This method varies depending on the specific implementation, but some of the more common methods include tunneling over GRE, encapsulating with VXLAN, and VLAN tags.

OpenStack Networking（neutron）是OpenStack的一个组件，它提供了网络服务API和实现软件定义网络（SDN）解决方案的参考架构。

网络服务为租户提供了对虚拟网络资源创建的完全控制。通常通过隧道协议来实现，该协议在现有的网络基础设施上建立封装的通信路径以对租户流量进行分段。具体实现方法因具体情况而异，但一些常见的方法包括通过GRE进行隧道传输、使用VXLAN进行封装和使用VLAN标签。