Dell PowerConnect B-FCXs Configuration Manual page 295

FIGURE 45
Switch 2 then starts the TCN timer on the Designated ports and sends RST BPDUs that contain the
TCN as follows
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PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Beginning of topology change notice
Bridge priority = 1000
Port2
Switch 1
Port3
Port2
Port3
Port4
Switch 3
Bridge priority = 300
Indicates the active Layer 2 path
Indicates direction of TCN
(Figure 46):
Port5/Switch 2 sends the TCN to Port2/Switch 5
Port4/Switch 2 sends the TCN to Port4/Switch 6
Port2/Switch 2 sends the TCN to Port2/Switch 1
Configuring STP related features
Bridge priority = 200
Port7 Port8
Port5
Port2
Switch 2
Port3
Port4
Port3
Port4
Switch 4
Bridge priority = 400
Bridge priority = 60
Port2
Switch 5
Port3
Port3
Port4
Port 5
Port5
Switch 6
Bridge priority = 900
8
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