Troubleshooting Multilayer Networks with Data Path Analysis

摘要

PROBLEM TO BE SOLVED: To provide a technique for improving network routing. The technology and support system implements a recursive routing mechanism in a hierarchical topological address environment to analyze and determine the presence of packet forwarding errors in an IP network with multiple network-attached devices. .. This is due to the fact that the software-defined network device receives an instruction for a potential packet transfer error between the first device and the second device of the plurality of network-connected devices, and by the software-defined network device. It involves injecting a test packet at the entrance to the first device. The test packet includes a first entry interface location that identifies the first device, an alternative entry interface location that identifies the software-defined network device, and an exit interface location that identifies the second device. [Selection diagram] Fig. 4