In SNA, an endpoint of a link or a junction common to two or more links in a network. Nodes can be distributed to host processors, communication controllers, cluster controllers, or terminals. Nodes can vary in routing and other functional capabilities.

• 在系统网络体系结构（SNA）中，链路的端点或网?络中?二条或多条链路的公共结合点。网点对于?主处理?机、通信控制器、群集控制器和终端可以是分布式的。网点路由选择及其它的运行功能可以改变。