Chapter 25 Multicast
MGS3520 Series User’s Guide
206
25.3.2 IGMP Snooping VLAN
Click Advanced Application > Multicast > IPv4 Multicast in the navigation panel. Click the
IGMP Snooping link and then the IGMP Snooping VLAN link to display the screen as shown. See
Section 25.1.4 on page 201 for more information on IGMP Snooping VLAN.
Figure 116 Advanced Application > Multicast > IPv4 Multicast > IGMP Snooping > IGMP Snooping
VLAN
The following table describes the labels in this screen.
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.
Table 84 Advanced Application > Multicast > IPv4 Multicast > IGMP Snooping (continued)
LABEL DESCRIPTION
Table 85 Advanced Application > Multicast > IPv4 Multicast > IGMP Snooping > 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 IGMP Snooping 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.
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