ZyXEL MGS-3712F User Guide - Page 208
Advanced Application > Multicast > Multicast Setting
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Chapter 24 Multicast Table 60 Advanced Application > Multicast > Multicast Setting (continued) LABEL DESCRIPTION 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. IGMP Filtering Select Active to enable IGMP filtering to control which IGMP groups a subscriber on a port can join. Note: If you enable IGMP filtering, you must create and assign IGMP filtering profiles for the ports that you want to allow to join multicast groups. Unknown Specify the action to perform when the Switch receives an unknown Multicast Frame multicast frame. Select Drop to discard the frame(s). Select Flooding to send the frame(s) to all ports. Reserved Multicast Group The IP address range of 224.0.0.0 to 224.0.0.255 are reserved for multicasting on the local network only. For example, 224.0.0.1 is for all hosts on a local network segment and 224.0.0.9 is used to send RIP routing information to all RIP v2 routers on the same network segment. A multicast router will not forward a packet with the destination IP address within this range to other networks. See the IANA web site for more information. The layer 2 multicast MAC addresses used by Cisco layer 2 protocols, 01:00:0C:CC:CC:CC and 01:00:0C:CC:CC:CD, are also included in this group. Port * Specify the action to perform when the Switch receives a frame with a reserved multicast address. Select Drop to discard the frame(s). Select Flooding to send the frame(s) to all ports. This field displays the port number. Settings in this row apply to all ports. Use this row only if you want to make some settings the same for all ports. Use this row first to set the common settings and then make adjustments on a port-by-port basis. Immed. Leave Normal Leave Note: Changes in this row are copied to all the ports as soon as you make them. Select this option to set the Switch to remove this port from the multicast tree when an IGMP version 2 leave message is received on this port. Select this option if there is only one host connected to this port. Enter an IGMP normal leave timeout value (from 200 to 6,348,800) in miliseconds. Select this option to have the Switch use this timeout to update the forwarding table for the port. This defines how many seconds the Switch waits for an IGMP report before removing an IGMP snooping membership entry when an IGMP leave message is received on this port from a host. 208 MGS-3712/MGS-3712F User's Guide