116 Chapter 6 Setting up bridging214393-AThe Bridge dialog box opens, with the Base tab displayed.2 Click the Transparent tab.The Transparent tab opens (Figure 54).Figure 54 Transparent tabTable 44 describes the Transparent tab items.Forwarding tabThe Forwarding tab displays the current state of the port, as defined by applicationof the Spanning Tree Protocol. This state controls what action a port takes onreception of a frame. If the bridge detects a port that is malfunctioning, it placesthe port into the “broken” state. For ports that are disabled, the value is “disabled.”Table 44 Transparent tab itemsItem DescriptionLearnedEntryDiscard Number of Forwarding Database entries learned that have beendiscarded due to a lack of space in the Forwarding Database. Ifthis counter is increasing, it indicates that the ForwardingDatabase is becoming full regularly. This condition will effect theperformance of the subnetwork. If the counter has a significantvalue and is not presently increasing, it indicates that the problemhas been occurring but is not persistent.AgingTime Time-out period in seconds for aging out dynamically learnedforwarding information.Note: The 802.1D-1990 specification recommends a default of300 seconds.
