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Filtering Database 3-27
NB-30 Bridging
The following Þelds are applicable to the scrollable Address Entry panel of
Filtering Database entries.
List
The List checkboxes at the bottom of the window indicate whether the associated
entry type (Dynamic, Static, or Permanent) will be displayed in the scrollable
table of address entries. A check next to the entry type indicates that it will be
displayed.
Address
Lists the addresses for which the bridgeÕs Filtering Database has forwarding
and/or Þltering information.
Type
Indicates the type of an entry in the database. The possible types are Dynamic,
Static, or Permanent. You can alter the entry type, as described in the next section.
Port Filtering
Indicates the action that will take place at each bridge port when it receives
frames from the selected address entry. An arrow between the ports indicates that
the frames received from the address will be forwarded to the portÕs associated
segment ( ). A vertical bar between the ports indicates that frames will be
Þltered (blocked) from the portÕs associated segment ( ). You can alter the
port Þltering action, as described in the next section.
Configuring the Filtering Database
You can conÞgure the Filtering Database by:
¥ Altering the Ageing Time for Dynamic entries.
¥ Changing the type of entry with the Type buttons.
¥ Changing the Port Filtering action at each bridge port.
¥ Adding or deleting individual Filtering Database entries.
¥ Clearing all Permanent or Acquired Database entries from the Filtering
Database.
Note that although conÞguration changes will appear in the window, no action
actually takes place in the bridgeÕs Filtering Database until you click on OK in the
bottom right of the window. This saves the new conÞguration.
Altering the Ageing Time
To alter the Ageing Time for Dynamic entries:
1. Highlight the Ageing Time field with the cursor.
2. Type in the new Ageing Time (allowable range is 10 to 1,000,000 seconds).