8-4THE FILTERING DATABASESaddresses that the bridge loads at start-up. The count never dropsbelow the 17 Permanent Database entries.Dynamic Ageing Time is the length of time, in seconds, that theAcquired Database retains a Dynamic entry. To set the DynamicAgeing time, highlight the Dynamic Ageing Time field and type anew value. (Default = 000300. The allowable range is 10 to 1000000seconds.)Type of Filtering lets you change the type of filtering the bridgeuses. This field can contain the following:IEEE 802.1 Uses the contents of the AcquiredDatabase for filter/forward decisions.Special DB Uses the contents of the SpecialDatabase for filter/forward decisions.Both Uses the contents of both theAcquired Database and SpecialDatabase. First, the bridge appliesthe Acquired Database to the frame. Ifthe frame does not get filtered, thebridge applies the Special Databasefor filter/forward decisions.8.2.2 Filter Database Screen CommandsRETURN closes the Filter Database screen and returns you to theSystem Information screen.SAVE makes your changes permanent. If you close the FilterDatabase screen without first saving, you lose all changes.DISPLAY ENTRIES opens the Display Filter Entries screen, whereyou can view all or just selected ranges of database entries.CREATE ENTRY displays the Create Filter Entry screen.DELETE ENTRY displays the Delete Filter Entry screen.SPECIAL DATABASE displays the Special Database screen.