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Intel® Gigabit Ethernet Switch AXXSW1GB User Guide 71
7 Defining Forwarding Database
Packets addressed to destinations stored in either the Static or Dynamic databases are immediately
forwarded to the port. The Dynamic MAC Address Table can be sorted by interface, VLAN, or MAC
Address, whereas MAC addresses are dynamically learned as packets from sources that arrive at the
device. Static addresses are configured manually.
An address becomes associated with a port by learning the port from the frame’s source address, but if a
frame that is addressed to a destination MAC address is not associated with a port, that frame is flooded
to all relevant VLAN ports. To prevent the bridging table from overflowing, a dynamic MAC address,
from which no traffic arrives for a set period, is erased.
This section contains information for defining both static and dynamic forwarding database entries, and
includes the following topics:
• Defining Static Forwarding Database Entries
• Defining Dynamic Forwarding Database Entries