Data transmission method based on multiple channels, related nodes and system

Abstract

An embodiment of the invention discloses a data transmission method based on multiple channels, related nodes and a system. The data transmission method based on multiple channels includes: leading receiving nodes to synchronously receive data frames from transmitting nodes from at least two channels; comparing whether data of at least two received data frames are identical; performing cyclic redundancy check (CRC) verification on the data frames identical in data if the data frames identical in data exist; performing CRC verification on all the data frames presently performed with the comparison if the data frames identical in data do not exist; transmitting a data frame verified to be correct by the CRC to a first input first output (FIFO) if the data frames verified to be correct exist; and sending confirmation information indicating the data frames to be correctly received to the transmitting nodes. The technical scheme of the data transmission method, the related nodes and the system can effectively improve stability of a communication system.

Description

technical field [0001] The invention relates to the communication field, in particular to a multi-channel-based data transmission method, related nodes and a system. Background technique [0002] With the advent of the world's first computer in 1946, computer technology has spanned the development era from tubes, transistors, integrated circuits, and ultra-large-scale integrated circuits. With the advancement of computer technology, people have put forward more requirements on the performance of processor systems High requirements, so there are symmetric multiprocessing structure (SMP, Symmetric Multiprocessing), cluster system, large-scale parallel processing (MPP, Massively Parallel Processing), and consistent cache non-uniform storage access mode (CC-NUMA, Cache-Coherent Non-Uniform Memory Architecture) and other system architectures. [0003] These architectures are implemented by interconnecting multiple chassis through backplanes or cables to form a large cabinet grou...

AI Technical Summary

Problems solved by technology

No matter which system architecture is used, hot engine backup is usually used to ensure the transmission of control signals between nodes, and the same signal is transmitted through different cables. When the main cable fails, it will switch to the backup cable. However, the hot engine backup is in During the switching process, it is easy to cause the loss of transmitted data. At the same time, the cyclic redundancy check (CRC, Cyclic Redundancy Check) protocol will cause too many data retransmissions, which makes the real-time and sequential nature of the data not strong, which in turn leads to the failure of the communication system. unstable

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