LevelOne FSW-2420TX manual MAC Address Table, Broadcast Storm Control only for FSW-1620TX

10Mbps	10Mbps (10BASE-T, Half-Duplex)
no Auto-Negotiation
10Mbps	20Mbps (10BASE-T, Full-Duplex)
with Auto-Negotiation

Note: If the attached device is set to a fixed mode (ex: Forced Full-Duplex) it will not operate as an Auto-Negotiation device.

4.5MAC Address Table

Every Ethernet data packet includes both source and destination addresses. This Six (6)-bytes ID is called the MAC (Media Access Control) Address.

The Switch can automatically learn and store MAC addresses. However, the MAC address table is volatile: it disappears when the Switch is powered “Off” or reset.

Note: When the network needs reconfiguration, we recommend turning off the power first. After all nodes have been moved, turn the Switch back "On" to rebuild the internal MAC address table.

4.6Broadcast Storm Control (only for FSW-1620TX)

The Broadcast Storm Control discards broadcast frames when the number of cumulated non-unicast frames is over the threshold, in order to prevent Network Traffic congestion bringing the Network to a halt. In this Switch, each port will drop broadcast packets (Destination MAC ID is

ffff ff ff ff ff) after receiving continuous 64 broadcast packets. The counter will be reset to 0 every 800ms or when receiving any non-broadcast packets. (Destination MAC ID is not ff ff ff ff ff ff)

8