Netgear GS716Tv2 GS716Tv2/GS724Tv3 Software Admin Manual - Page 99
Viewing Multicast Forwarding Database Information, Cancel, Apply, Switching, Multicast
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GS716Tv2 and GS724Tv3 Software Administration Manual Table 3-20. IGMP Snooping Interface Configuration Fields (continued) Field Host Timeout Max Response Time MRouter Timeout Fast Leave Admin Mode Description Specify the amount of time you want the switch to wait for a report for a particular group on a particular interface before it deletes that interface from the group. Enter a value between 1 and 3600 seconds. The default is 260 seconds. Specify the amount of time you want the switch to wait after sending a query on an interface because it did not receive a report for a particular group on that interface. Enter a value greater or equal to 1 and less than the Group Membership Interval in seconds. The default is 10 seconds. The configured value must be less than the Group Membership Interval. Specify the amount of time you want the switch to wait to receive a query on an interface before removing it from the list of interfaces with multicast routers attached. Enter a value between 0 and 3600 seconds. The default is 0 seconds. A value of zero indicates an infinite timeout; no expiration. Select the Fast Leave mode for a particular interface from the menu. The default is Disable. 2. Click Cancel to cancel the configuration on the screen and reset the data on the screen to the latest value of the switch. 3. If you make any configuration changes, click Apply to apply the new settings to the switch. Configuration changes take effect immediately. Viewing Multicast Forwarding Database Information The Layer 2 Multicast Forwarding Database (MFDB) is used by the switch to make forwarding decisions for packets that arrive with a multicast destination MAC address. By limiting multicasts to only certain ports in the switch, traffic is prevented from going to parts of the network where that traffic is unnecessary. When a packet enters the switch, the destination MAC address is combined with the VLAN ID and a search is performed in the Layer 2 Multicast Forwarding Database. If no match is found, then the packet is either flooded to all ports in the VLAN or discarded, depending on the switch configuration. If a match is found, then the packet is forwarded only to the ports that are members of that multicast group. The Switching Multicast folder contains links to the following pages: Configuring Switching Information v1.0, July 2009 3-35