Operation methods of communication node in network

A reception method performed by a communication node in an Ethernet-based vehicle network, the communication node including a hardware layer, an abstraction layer, a middleware layer, and an application layer, and the method comprising:

• receiving, by the hardware layer, a first request signal requesting to perform a initialization operation for reception of a stream from the abstraction layer;
• performing, by the hardware layer, the initialization operation for the reception of the stream based on the first request signal;
• when the initialization operation is completed, transmitting, by the hardware layer, a first response signal including a descriptor of the stream which is configured by the initialization operation to the abstraction layer;
• receiving, by the hardware layer, a second request signal which includes the descriptor of the stream and requests to perform an obtaining operation of a buffer from the abstraction layer;
• performing, by the hardware layer, the obtaining operation of the buffer for the reception of the stream based on the second request signal;
• when the obtaining operation is completed, transmitting, by the hardware layer, a second response signal including a start index of the buffer which is obtained by the obtaining operation to the abstraction layer;
• receiving, by the hardware layer, a third request signal requesting to access the buffer from the abstraction layer;
• accessing, by the hardware layer, the stream stored in the buffer based on the third request signal;
• receiving, by the hardware layer, a fourth request signal requesting to receive the stream from the abstraction layer;
• receiving, by the hardware layer, the stream from the buffer based on the fourth request signal;
• receiving, by the hardware layer, a fifth request signal requesting to finalize the reception of the stream;
• and
• performing, by the hardware layer, an operation of finalizing the reception of the stream based on the fifth request signal.