In computing a network interface is a system’s (software and 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 consist of a node ID in its own right,
Network interface provide standardized functions such as passing message, connecting and disconnecting, etc.
DTE and DCE
DTE(Data Terminal Equipment)
- It is an instrument that converts user information into signals or reconvert that recieved signals .DTE communicate with DCE .
- DTE is the terminal like computer
- DTE is the device where communication line ends.
DCE(Data Communication Equipment)
- It is also called the Data circuits terminating equipment and sits between the DTE and data transmission circuits.
- DCE is usually a modem ,router .
- It performs function such as signal conversion coding.
- It provides path for communication.