Lobos Tech LB-FEA800M - Manual (Page 30)

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4-3-6.MAC Address Configuration
4-3-6-1.Static MAC Address
When you add a static MAC address, it remains in the switch's address
table, regardless of whether the device is physically connected to the
switch. This saves the switch from having to re-learn a device's MAC
address when the disconnected or powered-off device is active on the
network again.
In this page user can add / modify / delete a static MAC address.