Use this command to trace PIMSM packet reception and transmission. receive traces only received PIMSM packets and transmit traces only transmitted PIMSM packets. When neither keyword is used in the command, then all PIMSM packet traces are dumped. Vital information such as source address, destination address, control packet type, packet length, and the interface on which the packet is received or transmitted is displayed on the console.
| Default | Disabled |
| Format | debug ip pimsm packet [receive | transmit] |
| Mode | Privileged EXEC |
