H3C S5500-EI Configuration Manual page 76

If PIM is enabled, the switch deletes only its dynamic member ports but not its dynamic router
ports.
NOTE:
On a switch with Layer-3 multicast routing enabled, use the display igmp group port-info command to
display Layer-2 port information.
If PIM is disabled on the switch, one of the following occurs:
4.
If IGMP is disabled, the switch deletes all its dynamic router ports.
If IGMP is enabled, the switch maintains all its dynamic member ports and dynamic router
ports.
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