Analysis the problem that how to effectively send and receive the control frame packet and the data frame packet, and give a solution that effective use the broadcast and UDP packet for these problems.

0,we can capture, decode and analyze the frame in the data link layer in real time.

In accordance with the peculiarity of the animal products trace back system, the specific RFID data frame is designed to apply into radio frequency communication, both anti-collision and packet lost examination, and retransmission based on the response, applied to communication between reader writer and active E-Tag.

Design of data frame in spectral response measuring instrument based on serial-port communication;

The paper introduces the application of J1939 data frame in engine control.

When errors in data frame are detected by decoder,retransmission is often requested.

0 development kit,and taking the C300 series transducers as a example,illuminates its internal communication agreement and data frames format,and provides pseudocode description of the arithmetic of receiving and idspatching data frames by serial port.

Technology of data-frame processing based on user s customization;

In this paper analysis of several typical LAN data-frames is presented, an algorithm of data-frame recognition based on the characteristic bits of the data-frames is proposed, and the performance of the algorithm is given.