Dell PowerConnect B-RX Configuration Manual page 427

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FIGURE 44
BigIron RX Series Configuration Guide
53-1001810-01
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
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.
Sync stage
Switch 300
Port1
Designated port
Port1
Root port
Sync
BigIron
Port2
Sync
Discarding
Port2
Indicates a signal
State machines
(Figure 44). Ports that are non-edge
Switch 100
Root Bridge
Switch 200
Port3
Sync
Discarding
Port3
Switch 400
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