ZyXEL Communications MES3500-24 User Manual

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 Chapter 24 Multicast
MES3500-24/24F User’s Guide
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24.4  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 
 for more information on IGMP Snooping VLAN.
Figure 95   
Advanced Application > Multicast > Multicast Setting > IGMP Snooping VLAN 
The following table describes the labels in this screen. 
Table 62   
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 five 
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.