正好我也在查这个概念 把我查到的给你说下吧业务节点(service node)指的就是提供业务的实体。个人认为像atm交换机,ip路由器都是业务节点。以下是我查到的其他的相关说法,你看下,应该不会错。webopedia上说业务节点就是edge switch,而维基上对edge switch的定义如下(ps:edge switch肯定是edge device的一种了)edge devices are routers, routing switches, integrated access devices (iads), multiplexers, and a variety of metropolitan area network (man) and wide area network (wan) access devices that provide entry points into enterpr**e or service provider core networks. edge devices also provide connections into carrier and service provider networks. 20210311