System and method for switching redundant networks across platforms in real time

Abstract

The present invention provides a system and method for cross-platform real-time switching of redundant networks. The 10 Gigabit redundant Ethernet card of FPGA is used as the main control chip, configured to form an active link and a standby link, and the link status of the two links is regularly identified. , actively switch according to the link status to form an external link. According to the logic design of FPGA, set the data structure of sending and receiving of FPGA, and the correlation between multiple data structures, respectively form the data link list of sending and receiving, and trigger the interrupt through the interrupt number control, so that reading or storing Data to the corresponding data linked list. The main control chip adopts FPGA, which can effectively configure the dual redundant network card directly at the physical layer, breaking the constraint that the traditional network card can only be configured through the application layer. Fault monitoring and link switching are performed directly at the lowest physical layer of the OSI model, which can effectively improve the switching time and get rid of the limitations of the operating system and drivers on the network card.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a system and method for switching redundant networks across platforms in real time. Background technique [0002] The 10-Gigabit redundant network card is a 10-Gigabit network card that can perform 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 has gradually occupied the market due to its greater bandwidth and stability. At the same time, some industries have put forward higher requirements on the real-time and reliability of the network. Redundancy design is adopted for the network card. 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 ca...

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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