By default, a switch dynamically adds member ports by listening to Report messages. If a dynamic member port does not receive an IGMP Report message from a multicast group within the aging time, the switch deletes the interface from the outbound interface list of the multicast group.
If the hosts connected to an interface need to receive multicast data for a specific multicast group or source-group for a long time, configure the interface as a static member port by binding the group or source-group to the interface.
Interfaces on a virtual private LAN service (VPLS) network include pseudo wire (PW) side interfaces and attachment circuit (AC) side interfaces. The methods for statically binding a group to PW-side and AC-side interfaces are different.
If the AC-side interface bound to a VSI is a VLANIF interface, bind a group to the Layer 2 interface in the corresponding VLAN. For details, see (Optional) Configuring a Static Member Port in "VLAN-based IGMP Snooping Configuration."
If the AC-side interface bound to a VSI is a physical interface that has been switched to Layer 3 mode using the undo portswitch command, perform the following steps to bind a group to the AC-side interface:
Run system-view
The system view is displayed.
Run interface interface-type interface-number
The interface view is displayed.
Run l2-multicast static-group [ source-address source-address ] group-address group-address1 [ to group-address2 ] vsi vsi-name
A group is statically bound to the interface. The interface then becomes a static group member.