Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide - Manual (Page 280)

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 as shown in the following figure.
Spanning Tree Protocol
280 FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide
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