ZyXEL Communications MES3500-24, User Manual

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Chapter 24 Multicast
MES3500-24/24F User’s Guide
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24.1.4 IGMP Snooping and VLANs
The Switch can perform IGMP snooping on up to 16 VLANs. You can configure the Switch to
automatically learn multicast group membership of any VLANs. The Switch then performs IGMP
snooping on the first 16 VLANs that send IGMP packets. This is referred to as auto mode.
Alternatively, you can specify the VLANs that IGMP snooping should be performed on. This is
referred to as fixed mode. In fixed mode the Switch does not learn multicast group membership of
any VLANs other than those explicitly added as an IGMP snooping VLAN.
24.2 Multicast Status
Click Advanced Applications > Multicast to display the screen as shown. This screen shows the
multicast group information. See
Section 24.1 on page 186 for more information on multicasting.
Figure 93
Advanced Application > Multicast
The following table describes the labels in this screen.
Table 60
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.