A network data protection device and method

Abstract

The invention discloses a network data protection device and method, which are used for protecting network device data. The method provided by the present invention includes: a survival detection module: used to detect whether the network of the protected network device is smooth, and when the network of the protected network device is not smooth, switch to the preset protection line; the first abnormality detection module: used for Periodically send data packets with specific marks and time stamps to the protected network equipment, after receiving the returned data packets, if the number of data packets is inconsistent, then switch to the protection line; the second abnormality detection module: used to calculate the The data packets with a specific mark and time stamp pass through the delay time generated by the protected network equipment. When the average delay time or the longest delay time exceeds the preset threshold, it will switch to the protection line. In the embodiment of the present invention, the cost brought by the hardware detection can be reduced, and the multi-level network status detection can accurately confirm the abnormal problem of the network, which greatly guarantees the reliability of the network.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a network data protection device and method. Background technique [0002] With the rapid development of information technology, network access devices are gradually increasing. When a fault occurs, redundant backup of network devices is often required to ensure network data security. For some devices connected in series to the network, the Bypass method is often used for protection. For key positions, the above redundant backup method can be used, but for non-critical parts, the above-mentioned pure hardware replacement device is used to ensure smooth network, and the cost will be lower. High, and the existing Bypass technology can only detect whether the protected device is alive, and it is difficult to judge whether the protected device has network abnormalities. [0003] Therefore, it is necessary to propose a low-cost device or method that can detect network anomalies. ...

AI Technical Summary

Problems solved by technology

For some devices connected in series to the network, the Bypass method is often used for protection. For key positions, the above redundant backup method can be used, but for non-critical parts, the above-mentioned pure hardware replacement device is used to ensure smooth network, and the cost will be lower. High, and the existing Bypass technology can only detect whether the protected device is alive, and it is difficult to judge whether the protected device has network abnormalities

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