Defining The Forwarding Database; Defining Static Forwarding Database Entries; Figure 3-92. Address Tables Home - Alcatel OS-LS-6224 User Manual

3
Configuring the Switch

Defining the Forwarding Database

Switches store the addresses for all known devices. This information is used to pass
traffic directly between the inbound and outbound ports. All the addresses learned
by monitoring traffic are stored in the dynamic address table. You can also manually
configure static addresses that are bound to a specific port.
An address becomes associated with a port by learning 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.
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.
•
Figure 3-92. Address Tables Home Page

Defining Static Forwarding Database Entries

A static address can be assigned to a specific interface on this switch. Static
addresses are bound to the assigned interface and cannot be moved. When a static
address is seen on another interface, the address will be ignored and will not be
written to the address table.
To prevent static MAC addresses from being deleted when the device is reset,
ensure that the port attached to the MAC address is locked.
186