The application discloses a method for splicing multi-section network paths across isolation devices, comprising the following steps: step 1, opening corresponding network protocols for all devices in the multi-section network across the isolation devices, and inputting account passwords into the
system; step 2, configuring a periodic collection task in the
system, and after starting the task, collecting the routing information of all network devices concurrently; step 3, adapting the collected routing information and storing the same into a
database, and according to the need, retrieving the IP addresses of the end and Z-end devices of the path, and then performing end-to-end path retrieval and splicing, and displaying the path. The application is based on the association of CE devices to PE across the isolation devices, realizes the splicing of the multi-section network paths across the isolation devices, collects all links between the PE and the CE, and finds the optimal active link through the link
delay and the traffic to determine the opposite PE device, and solves the problem that the general network tools cannot retrieve the complete network path across the isolation devices.