A high-speed network data transmission method based on winpcap
A data transmission method and high-speed network technology, applied in the field of network development, can solve the problems of not being able to make full use of network bandwidth, not considering increasing the network transmission rate, and not being able to increase the network transmission rate, so as to reduce overhead, improve efficiency, and make full use of it. Effect
Active Publication Date: 2020-10-30
INST OF SOFTWARE - CHINESE ACAD OF SCI
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[0007] The patent No. CN103281335 also uses winpcap, but they mainly transplant the development of the network protocol stack on the embedded device to the windows system for development and testing in order to overcome the difficulty of debugging programs on the embedded device. With a protocol stack, it can only improve the efficiency of embedded development, but cannot increase the speed of network transmission. In the case of fixed network hardware devices, it cannot make full use of network bandwidth.
The patent No. CN103064064 mainly uses winpcap to capture the network data packets of radar signals from external radiation sources, and does not consider increasing the network transmission rate
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[0036] The present invention will be described in detail below through specific embodiments and accompanying drawings.
[0037] figure 1 It is a block diagram of high-speed network data transmission between the host computer and the embedded device in the present invention. The host part mainly includes a processor, a memory and a network card, and the processor and the network card read and write the input data buffer, parameter data buffer and output data buffer in the memory through the bus. The host computer and embedded device send and receive network packets through the network card. The host takes data from the input data buffer and parameter data buffer, and sends the assembled data packets to the embedded device through the winpcap network interface after grouping the packets. After the embedded device processes the data, it sends the result data to the host, and the host passes The winpcap network interface receives the output data packet, and removes the data in t...
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The invention provides a high-speed network data transmission method based on winpcap. A high-speed network data transmission method of a host and embedded equipment based on winpcap is taken as an example. The host sends and receives a network data packet through the Winpcap network interface, the Winpcap interface operates on a windows system, network card hardware is accessed through the network card driver, and therefore the expenditure for packaging and unpackaging a TCP / IP protocol stack is reduced. The host comprises a processor, a memory and a network card. The memory is provided withan input data buffer, a parameter data buffer and an output data buffer. The host sends input data and parameter data to the embedded device through the winpcap interface. and the result data is received back from the embedded device through the winpcap network interface, and is responsible for finishing corresponding packing and unpacking operations of sending data packets, receiving data packets, responding packets and the like, and reading and writing operations of a corresponding buffer. Therefore, under the condition that the network hardware of the windows system is fixed, the network transmission efficiency under the windows system is improved, and the network bandwidth is more fully utilized.
Description
technical field [0001] The invention relates to a winpcap-based high-speed network data transmission method, in particular to a winpcap-based host-end network transmission method without TCP / IP protocol stack, and belongs to the field of network development. Background technique [0002] winpcap provides the application program with the ability to access the underlying network under the windows platform, and can be used for direct network programming under the windows system. Winpcap can realize the underlying network packet capture and packet sending under the windows system. Therefore, you can send the network packets assembled by yourself without TCP / IP headers through the winpcap interface, and you can also receive network packets without TCP / IP headers sent by other devices. [0003] In scenarios with high real-time requirements, compared to sending and receiving network packets containing TCP / IP headers, sending and receiving simple network packets that do not contain...
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IPC IPC(8): H04L29/06
Inventor 程丽敏李玲武延军
Owner INST OF SOFTWARE - CHINESE ACAD OF SCI