Dell PowerConnect B-FCXs Configuration Manual page 278

8
Configuring STP related features
FIGURE 30
•
236
Sync stage
Port2
Sync
Discarding
Port2
Switch 300
Synced – Once the Designated port changes into a discarding state, it asserts a synced signal.
Immediately, Alternate ports and Backup ports are synced. The Root port monitors the synced
signals from all the bridge ports. Once all bridge ports asserts a synced signal, the Root port
asserts its own synced signal
Switch 100
Root Bridge
Port1
Designated port
Port1
Root port
Sync
BigIron
Switch 200
Port3
Sync
Discarding
Port3
Switch 400
Indicates a signal
(Figure 31).
PowerConnect B-Series FCX Configuration Guide
53-1002266-01