Dell PowerConnect B-RX Configuration Manual page 459

FIGURE 60
Then FRY1, Switch 5, and Switch 6 send RST BPDUs that contain the TCN to Switch 3 and Switch 4
to complete the TCN propagation
BigIron RX Series Configuration Guide
53-1002253-01
Sending TCN to bridges connected to Switch 2
Switch 1
Bridge priority = 1000
Port2
Port3
Port2
Port3
Port4
Switch 3
Bridge priority = 300
Indicates the active Layer 2 path
Indicates direction of TCN
Convergence in a complex RSTP topology
Switch 2
Bridge priority = 200
Port7 Port8
Port2
Port3
Port4
Port3
Port4
Switch 4
Bridge priority = 400
(Figure 61).
Switch 5
Bridge priority = 60
Port2
Port5
Port3
Port3
Port4
Port5
Port5
Switch 6
Bridge priority = 900
13
383