网络接口，又名网络接口。就电信网络与电脑网络而言，一个网络接口可以是：

In computing, a network interface is a system's (software and/or hardware) interface between two pieces of equipment or protocol layers in a computer network.

A network interface will usually have some form of network address. This may consist of a node Id and a port number or may be a unique node Id in its own right.