Configuration Guide User guide

BigIron RX Series Configuration Guide 367
53-1002484-04
State machines
13
FIGURE 44 Sync stage
• 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 (Figure 45).
BigIron
Switch 100
Root Bridge
Port1
Designated port
Port1
Root port
Sync
Switch 200
Switch 300
Switch 400
Port2
Sync
Discarding
Port3
Sync
Discarding
Port2
Port3
Indicates a signal