If network-wide OSPFv3 LSPs are deleted, purge LSPs are flooded, which adversely affects network stability. In this case, source tracing must be implemented to locate the root cause of the fault immediately to minimize the impact. However, OSPFv3 itself does not support source tracing. A conventional solution is isolation node by node until the faulty node is located, but the solution is complex and time-consuming. To address this problem, enable OSPFv3 purge LSP source tracing.
Huawei Enables this function on all OSPFv3 interfaces by default . The OSPFv3 flush LSA source tracing port receives and sends OSPFv3 flush LSA source tracing packets, and the port is identified by a UDP port number. If the UDP port number conflicts with that of an application, you can change the UDP port number of OSPFv3 flush LSA source tracing packets using the ospfv3 flush-source-trace port command.
