Viewing Device Properties | 37 |
9Click the ATU Table button to make changes to the NJ220’s ATU table. The screen you see allows you to display all MAC addresses that have been plugged into that IntelliJack or just the ones that you have “locked down” to it. You can refresh the list, add MAC addresses to it, edit existing ones or delete entries in the ATU table.
The Address Translation Unit (ATU) performs MAC address searching, learning, and aging functions for all ports of the NJ220 IntelliJack. By default, the ATU table allows a total of 512 entries and an aging time is 304 seconds for each entry.
The NJ220 IntelliJack lets you manage its ATU table. You may want to know which MAC addresses have been plugged into a particular IntelliJack. You may want to associate a MAC address with selected ports, so the unselected ports will not receive frames from this MAC address. You may want to set a certain priority level to the frames associated with the MAC address. Finally, you may want to lock down a MAC address so that it is never dropped from the ATU table. This last operation is referred as MAC address filtering and you can lock down up to 32 MAC addresses into the ATU. All of these configurations are handled through the Properties page, since an ATU table is related to a specific IntelliJack.
