System and method for cross-platform real-time switching of redundant networks

Abstract

The invention provides a cross-platform real-time redundant network switching system and method. The method comprises the following steps: employing a 10-gigabit redundant Ethernet card of an FPGA asa main control chip, forming an activation link and a standby link through configuration, recognizing the link states of the two links at regular time, and forming an external link through active switching according to the link states. According to the logic design of the FPGA, sending and receiving data structures of the FPGA and correlation among the multiple data structures are set, sending andreceiving data linked lists are formed respectively, and interruption is triggered through interruption number control, so that data is read or stored into the corresponding data linked lists. The main control chip adopts the FPGA, the dual-redundancy network card is directly and effectively configured on a physical layer, and the constraint that a traditional network card can only be configuredthrough an application layer is broken through. Fault monitoring and link switching are directly carried out on the bottommost physical layer of the OSI model, so that the switching time can be effectively prolonged, and the limitation of an operating system and a driver on a network card is eliminated.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a system and method for switching redundant networks across platforms in real time. Background technique [0002] A 10-Gigabit redundant NIC is a 10-Gigabit NIC capable of link switching when a communication link fails. With the formulation of the 10 Gigabit Ethernet standard 802.3ae and the subsequent release of more 10 Gigabit Ethernet standards, 10 Gigabit Ethernet began to gradually occupy the market with its greater bandwidth and stability. At the same time, some industries also put forward higher requirements for the real-time and reliability of the network. The redundant design of the network card is adopted. When a partial failure occurs in the network, the real-time and reliability requirements for the network card can be effectively met by switching the working link. [0003] The 10 Gigabit redundant Ethernet card means that the network card has ...

AI Technical Summary

Problems solved by technology

[0004] At this stage, ordinary redundant network cards generally use two separate network cards, which are detected and switched by software at the application layer in the OSI model. In this case, it takes a long time to find faults and switch links

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