Adtran 4110 用户手册

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Chapter 3.  Terminal Menu Operation and Structure
3-28
Express 4110/4120 User Manual
61200176L3-1
Bridge/Address Table
The Express 4110/4120 automatically maintains a table of MAC addresses 
detected and associates those addresses with the LAN, WAN0, or WAN1 
port from which they were received.  This menu permits the user to adjust 
the parameters or rules for the table as addresses are learned.
Address Table/Aging
Write security: 3; Read security: 5
This is the maximum time an idle MAC address remains in the table 
before being removed. The value is in minutes and can range from 0 
(which means never age) to 65535.  The default is 5.
Address Table/Forward Policy
Write security: 3; Read security: 5
When this parameter is set to Unknown (def), any bridge packet with a 
destination MAC address that is not in the bridge table is forwarded to all 
other ports.  When set to Known, the packet with the unknown destina-
tion MAC address is dropped and is not forwarded.