(With the increase of network scale, the number of network devices continues to increase, and the shortcomings caused by device forwarding also continue to increase. How to accurately locate the devices with faults and improve the efficiency of fault management is another challenge faced by traditional network management methods. Combined with many practices, it is found that it is an effective method to use the backtracking analysis technology to conduct in-depth analysis of the inbound and outbound traffic of the device, and then check whether there is an abnormality in the data forwarding.)
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