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LevelOne OfficeCon FSW-1620TX User Manual

Page 8

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8

10Mbps

no Auto-Negotiation

10Mbps (10BASE-T, Half-Duplex)

10Mbps

with Auto-Negotiation

20Mbps (10BASE-T, Full-Duplex)

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

4.5 MAC

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.

4.6

Broadcast 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
ff ff 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)

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