Chapter 23 Multicast
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23.4 IGMP Snooping VLAN
Click Advanced Applications > Multicast in the navigation panel. Click the Multicast Setting
link and then the IGMP Snooping VLAN link to display the screen as shown. See IGMP Snooping
and VLANs on page 169 for more information on IGMP Snooping VLAN.
Figure 107 Advanced Application > Multicast > Multicast Setting > IGMP Snooping VLAN
The following table describes the labels in this screen.
Table 57 Advanced Application > Multicast > Multicast Setting > IGMP Snooping VLAN
LABEL DESCRIPTION
Mode Select auto to have the Switch learn multicast group membership information of any
VLANs automatically.
Select fixed to have the Switch only learn multicast group membership information of the
VLAN(s) that you specify below.
In either auto or fixed mode, the Switch can learn up to 16 VLANs (including up to three
VLANs you configured in the MVR screen). For example, if you have configured one
multicast VLAN in the MVR screen, you can only specify up to 15 VLANs in this screen.
The Switch drops any IGMP control messages which do not belong to these 16 VLANs.
Note: You must also enable IGMP snooping in the Multicast Setting screen first.
Apply Click Apply to save your changes to the Switch’s run-time memory. The Switch loses
these changes if it is turned off or loses power, so use the Save link on the top navigation
panel to save your changes to the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
VLAN Use this section of the screen to add VLANs upon which the Switch is to perform IGMP
snooping.
Name Enter the descriptive name of the VLAN for identification purposes.
VID Enter the ID of a static VLAN; the valid range is between 1 and 4094.
Note: You cannot configure the same VLAN ID as in the MVR screen.
Add Click Add to insert the entry in the summary table below and save your changes to the
Switch’s run-time memory. The Switch loses these changes if it is turned off or loses
power, so use the Save link on the top navigation panel to save your changes to the non-
volatile memory when you are done configuring.
