3com 3CDSG10PWR User Guide

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C
HAPTER
 9: C
ONFIGURING
 IP 
AND
 MAC A
DDRESS
 I
NFORMATION
Configuring 
Address Tables
MAC addresses are stored in either the Static Address or the Dynamic 
Address databases. A packet addressed to a destination stored in one of 
the databases is forwarded immediately to the port. The Dynamic 
Address Table can be sorted by interface, VLAN, and MAC address. MAC 
addresses are dynamically learned as packets from sources arrive at the 
device. Addresses are associated with ports by learning the ports from the 
frames source address. Frames addressed to a destination MAC address 
that is not associated with any port are flooded to all ports of the relevant 
VLAN. Static addresses are manually configured. In order to prevent the 
bridging table from overflowing, dynamic MAC addresses, from which no 
traffic is seen for a certain period, are erased.
This section includes the following sections: