ZyXEL Communications VES1724-56, Руководство пользователя

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Chapter 24 Multicast
VES1724-56 User’s Guide
226
24.4 IGMP Snooping VLAN
Click Advanced Application > Multicast in the navigation panel. Click the Multicast Setting link
and then the IGMP Snooping VLAN link to display the screen as shown. See
Section 24.1.4 on
page 218 for more information on IGMP Snooping VLAN.
Figure 132
Advanced Application > Multicast > Multicast Setting > 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 96
Advanced Application > Multicast > Multicast Setting (continued)
LABEL DESCRIPTION
Table 97
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.