ZyXEL Communications ZyXEL Dimension GS-4012F - Manual (Page 145)

GS-4012F/4024 User’s Guide
144 Chapter 22 Multicast
The switch forwards multicast traffic destined for multicast groups (that it has learned from
IGMP snooping) to ports that are members of that group. The switch discards multicast traffic
destined for multicast groups that it does not know. IGMP snooping generates no additional
network traffic, allowing you to significantly reduce multicast traffic passing through your
switch.
22.2 Multicast Status
Click Advanced Applications and Multicast to display the screen as shown. This screen
shows the multicast group information.
Figure 62 Multicast: Status
The following table describes the labels in this screen.
22.2.1 Multicast Setting
Click Advanced Applications, Multicast and the Multicast Setting link to display the screen
as shown.
Table 46 Multicast: Status
LABEL DESCRIPTION
Index This is the index number of the entry.
VID This field displays the multicast VLAN ID.
Port This field displays the port number that belongs to the multicast group.
Multicast Group This field displays IP multicast group addresses.