Netgear GS110TP GS108Tv2/GS110TP Software Reference Manual - Page 129
Multicast Forwarding Database Table
UPC - 606449069129
View all Netgear GS110TP manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 129 highlights
GS108T and GS110TP Smart Switch Software Administration Manual • Click Refresh to reload the page and display the most current information. Multicast Forwarding Database Table 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. Use the MFDB Table page to view the port membership information for all active multicast address entries. The key for an entry consists of a MAC address. Entries may contain data for more than one protocol. To access the MFDB Table page, click Switching Multicast IGMP Snooping MFDB Table. Figure 3-30 Configuring Switching Information v1.0, April 2010 3-45