4 results about "Software switch" patented technology

This application provides a software switch caching acceleration method and related apparatus based on FPGA, belonging to the field of network packet processing technology. The method includes: compiling a caching rule set into a decision tree forest using a decision tree construction algorithm, the decision tree forest comprising multiple decision trees of equal depth; mapping the decision tree forest to multiple parallel tree pipelines, the tree pipelines running on the FPGA, each tree pipeline corresponding to a decision tree, and each pipeline stage corresponding to a node layer of the decision tree; broadcasting a preset data packet to all tree pipelines for parallel processing; for each tree pipeline, guiding the preset data packet to traverse each pipeline stage until the preset data packet reaches the target leaf node of the decision tree; performing parallel rule matching on the preset data packet at the target leaf node of each decision tree to obtain the target caching rule matching the preset data packet, thereby accelerating flow table caching classification.

The invention belongs to the technical field of electromechanical management design, and discloses a decentralized electromechanical soft switching linkage control method which is operated on electromechanical control displays with a real-time operating system, data communication, picture display and switching state output are performed by relying on the electromechanical control displays, and a plurality of electromechanical control displays operate the same program. The electromechanical control displays are connected together through a data bus, the soft switch of any display of the connected electromechanical control displays can control the soft switch state output of other displays in real time, and all the soft switches display the states synchronously in real time. According to the method, the problem that point-to-point control of software switches of two or more electromechanical control displays is difficult is solved, the constraint of an intermediate node is eliminated, and the communication burden of the intermediate node is reduced.

The invention discloses a multi-channel synchronous detection method and system for the electrical performance of an automobile lamp wire harness, and relates to the field of multi-channel synchronous detection of the electrical performance, and the method comprises the steps: constructing an electrical performance detection list of the automobile lamp wire harness; establishing a hierarchical level of electrical performance detection, having a Boolean rule with reserved skipping, and dynamically regulating and controlling the type based on the rule to detect whether skipping exists; constructing a software switch configuration matrix, and dynamically regulating and controlling an electrical performance detection sequence based on the matrix; connecting an interface for detecting the electrical performance of the automobile lamp wire harness with a hardware detection platform, and acquiring a performance detection result; and constructing a comprehensive evaluation neural network model, outputting a reason label and probability of type detection skipping, and judging whether the skipped type is detected again or not. The method has the advantages that high safety and high reliability of electrical performance detection of the automobile lamp wire harness under the full-automatic condition are achieved, and the industrial pain point of result misalignment caused by misjudgment of traditional automatic detection is effectively solved.

A method for detecting network attack based on kernel operating characteristics of a software switch, comprising: collecting kernel operating characteristic data of the software switch during network management and packet forwarding of the software switch, wherein the kernel operating characteristic data of the software switch can reflect characteristic data of a fine-grained operating state of a network; preprocessing the kernel operating characteristic data of the software switch; and inputting the preprocessed kernel operating characteristic data of the software switch into a pre-trained attack detection model to detect a potential attack behavior in a network. The method is applicable to all scenarios where the software switch is applicable, especially a software-defined network and a cloud data center, an industrial Internet, 5G, edge computing based on the software-defined network. More accurate and timely detection and early warning of potential anomalies and attack behaviors in the network can be implemented.