Line card fault recovery method and related device based on distributed PCIE system

Abstract

The invention discloses a line card fault recovery method and device based on a distributed PCIE system and a line card. The line card fault recovery method based on the distributed PCIE system comprises the steps that after a faulted line card in the distributed PCIE system is automatically restarted, and a PCIE port on the faulted line card is closed to inform an exchange chip in the distributed PCIE system of abandoning data, wherein the exchange chip is arranged in the distributed PCIE system, and is connected with the faulted line card, and a destination address of the data is the address of the faulted line card; after prestored PCIE configuration information of the faulted line card is obtained, configuration is carried out according to the obtained PCIE configuration information; the PCIE port is opened to inform the exchange chip of recovering sending of the data, wherein the destination address of the data is the address of the faulted line card. According to the scheme, congestion of the whole PCIE system can be effectively prevented from happening, and software resources of a master control card are saved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a line card failure recovery method, device and line card based on a distributed Peripheral Component Interconnect Express (PCIE) system. Background technique [0002] The PCIE bus is a high-performance bus used to transmit data between components in a communication system. In the PCIE system, a point-to-point connection is adopted, and each pair of interconnected components has an independent PCIE bus, and the concurrent data transmission between the components does not affect each other. Due to the point-to-point interconnection technology, the topology of the PCIE system can be flexibly expanded through the PCIE switch chip (Switch, SW). [0003] A PCIE system generally includes a root component (Root Complex, RC), PCIE SW, and an endpoint (End Point, EP). RC is generally integrated in the central processing unit (Central Processing Unit, CPU), in addition to ...

AI Technical Summary

Problems solved by technology

[0012] Embodiments of the present invention provide a line card failure recovery method, device, and line card based on a distributed PCIE system, which are used to solve the problem that the entire PCIE system may be triggered in the process of recovering a faulty line card based on a distributed PCIE system Congestion occurs, which affects the data transmission of other normal line cards, and wastes the software resources of the main control card

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