You can run related commands to check the PIM-DM running
status. If necessary, you can clear statistics on PIM-DM control messages
or enable the PIM-DM debugging.
If you need to re-collect the statistics about PIM control messages, you can reset the existent statistics. Note that the statistics cannot be restored after you reset them. This operation does not affect normal running of PIM.
When PIM-DM runs abnormally, you can run related commands in the user view to debug the PIM, then check the debugging information, and locate the fault.