Brocade TurboIron 24X Series Configuration Guide - Manual (Page 567)

Brocade TurboIron 24X Series Configuration Guide 533
53-1003053-01
Configuring STP related features
• Sync – Once the Root port is elected, it sets a sync signal on all the ports on the bridge. The
signal tells the ports to synchronize their roles and states (
Figure 68 ). Ports that are non-edge
ports with a role of Designated port change into a discarding state. These ports have to
negotiate with their peer ports to establish their new roles and states.
FIGURE 68 Sync stage
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