ZyXEL Communications ZyXEL Dimension ES-3124-4F - Manual (Page 63)

ES-3100 Series Switch Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
63
configured multicast MAC address. If matches, the switch CPU
modifies the hardware address table to include this receiver port and
VLAN as a forwarding destination of the MVLAN
‹ Leave Operation
Subscriber sends an IGMP leave message to the switch to leave the
multicast. The switch CPU sends an IGMP group-specific query
through the receiver port VLAN. If there is another subscriber in the
VLAN, subscriber must respond within the max response time. If
there is no subscriber, the switch eliminates this receiver port.
‹ Immediate Leave Operation
Subscriber sends an IGMP leave message to the switch to leave the
multicast. Subscribers do not need to wait the switch CPU to send an
IGMP group-specific query through the receiver port VLAN. The
switch will immediately eliminate this receiver port.