ZyXEL GS1920 Series User Guide - Page 170
IGMP Snooping, Advanced Application, Multicast > IPv4 Multicast
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Chapter 23 Multicast The following table describes the labels in this screen. Table 71 Advanced Application > Multicast > IPv4 Multicast 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. 23.3.1 IGMP Snooping Click the IGMP Snooping link in the Advanced Application > Multicast > IPv4 Multicast screen to display the screen as shown. See Section 23.1 on page 165 for more information on multicasting. Figure 126 Advanced Application > Multicast > IPv4 Multicast > IGMP Snooping The following table describes the labels in this screen. Table 72 Advanced Application > Multicast > IPv4 Multicast > IGMP Snooping LABEL DESCRIPTION IGMP Snooping Use these settings to configure IGMP snooping. Active Select Active to enable IGMP Snooping to forward group multicast traffic only to ports that are members of that group. Querier Select this option to allow the Switch to send IGMP General Query messages to the VLANs with the multicast hosts attached. Host Timeout Specify the time (from 1 to 16 711 450) in seconds that elapses before the Switch removes an IGMP group membership entry if it does not receive report messages from the port. 802.1p Priority Select a priority level (0-7) to which the Switch changes the priority in outgoing IGMP control packets. Otherwise, select No-Change to not replace the priority. GS1920 Series User's Guide 170