Debugging Multicast Forwarding and Routing
When a multicast running fault occurs, you can run the related commands in this section in the user view to debug multicast forwarding and routing, display debugging information, and locate the fault.
Before the debugging, you must run the terminal monitor and terminal debugging commands in the user view to enable the information display and debugging display functions of the terminal, so that debugging information is displayed on the terminal.
Enabling the debugging affects system performance. When the debugging is complete, run the undo debugging all command to disable the debugging in time.
Table 1 lists the commands for debugging multicast forwarding and routing.
| Operation | Command |
|---|---|
Enable all the debuggings of MRM. |
debugging mrm [ vpn-instance vpn-instance-name | all-instance ] all |
Enable the debugging of MRM events. |
debugging mrm [ vpn-instance vpn-instance-name | all-instance ] event |
Enable the debugging of MRM packets. |
debugging mrm [ vpn-instance vpn-instance-name | all-instance ] packet [ advanced-acl-number ] |
Enable the debugging of MRM routing. |
debugging mrm [ vpn-instance vpn-instance-name | all-instance ] route [ advanced-acl-number ] |