ZyXEL Communications GS-4012F/4024 - Manual (Page 155)

GS-4012F/4024 User’s Guide
154 Chapter 22 Multicast
The switch forwards multicast traffic destined for multicast groups (that it has learned from
IGMP snooping or that you have manually configured) to ports that are members of that
group. 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. See
Section 22.1 on page 153 for more information on
multicasting.
Figure 68 Multicast: Status
The following table describes the labels in this screen.
22.3 Multicast Setting
Click Advanced Applications, Multicast and the Multicast Setting link to display the screen
as shown. See
Section 22.1 on page 153 for more information on multicasting.
Table 51 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.