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PowerConnect B-Series FCX Configuration Guide 237
53-1002266-01
Configuring STP related features
8
FIGURE 31 Synced stage
• Agreed – The Root port sends back an RST BPDU containing an agreed flag to its peer
Designated port and moves into the forwarding state. When the peer Designated port receives
the RST BPDU, it rapidly transitions into a forwarding state.
BigIron
Switch 100
Root Bridge
Switch 200
Switch 300
Switch 400
Port1
Designated port
Port1
Root port
Synced
Port2
Port3
Indicates a signal
Port2
Synced
Discarding
Port3
Synced
Discarding