Cabletron Systems 9A128-01 Manual De Usuario

Bridging

5-22

Filtering Database

•

 entries are addresses that you add to the Static Database (via the 

Filtering Database window) that are stored in the selected module’s 
battery-backed RAM. Since they remain in the module on shutdown or restart, 
they are considered “Permanent.”

•

 entries are addresses that you add to the Static Database (via the 

Filtering Database window). These entries remain in the selected module’s 
memory until it is shut down.

•

entries are addresses that you add to the Static Database (via the 

Filtering Database window). With the Ageing Time feature, you set the time 
period that these addresses are saved in the Source Address Table. Addresses 
that have not transmitted a packet during one complete cycle of the ageing 
timer are deleted from the database.

•

 entries are addresses that are added to the Learned Database through 

the bridge’s learning process. With the Ageing Time feature, you set the time 
period that these addresses are saved in the Source Address Table. Addresses 
which are inactive within a cycle of the ageing timer are dropped from the 
database.

Learned address entries are divided into two types, Learned and Self. Address 
entries classified as Learned have transmitted frames destined for a device 
attached to a segment connected to the selected module. Address entries 
classified as Self are those that have sent a frame with a destination address of 
one of the selected module’s bridging port.

At the Filtering Database window (

), you can view the number of 

entries of each type: Permanent, Static, Dynamic, or Learned.