H3C S7500E Series Command Reference Manual page 159

In an EPON system, users and the multicast source can exchange multicast traffic with each other
only if the corresponding multicast table entries exist on the ONUs and OLT:
In FTTH view, bind multicast IP addresses with multicast VLANs. Then, the multicast table entries
will be created on the ONUs and OLT when users send IGMP report messages.
You can use the igmp-snooping host-join and igmp-snooping static-group commands in
ONU port view to create multicast table entries on the OLT, but not on the ONUs. In that case,
multicast traffic cannot be exchanged between them.
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