Dell PowerConnect B-FCXs Configuration Manual page 277

FIGURE 29
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PowerConnect B-Series FCX Configuration Guide
53-1002266-01
NOTE
Proposed will never be asserted if the port is connected on a shared media link.
In Figure 29, Port3/Switch 200 is elected as the Root port
Proposing and proposed stage
Port2
Switch 300
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.
Configuring STP related features
Switch 100
Root Bridge
Port2
Designated port
RST BPDU
Proposing
sent with a
Proposal
flag
Port1
Root port
Proposed
Switch 200
Port2
Port3
Port3
Switch 400
(Figure 30). Ports that are non-edge
8
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