H3C Technologies H3C S7500E Series Switches - Manual (Page 71)

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On a switch with Layer-3 multicast routing enabled, use the display igmp group port-info
command to view Layer-2 port information.
For more information about the display igmp group port-info command, see IGMP
Configuration Commands in the IP Multicast Command Reference.
4) When PIM is disabled on the switch:
z If IGMP is disabled, the switch deletes all its dynamic router ports.
z If IGMP is enabled, the switch maintains all its dynamic member ports and dynamic router
ports.