Refer to the output shown on switch SW1 below： 
Warning： Spantree port fast start should only be enabled on ports connected to a single host.Connecting hubs， concentrators， switches， bridges， etc. to a fast start port can cause temporaryspanning tree loops. Use with caution.
Spantree ports 4/1-24 fast start enabled. 
What command could you enter to reproduce this output？

Refer to the output shown on switch SW1 below： 
VLAN 1 bridge priority set to 8192.
VLAN 1 bridge max aging time set to 20.VLAN 1 bridge hello time set to 2.
VLAN 1 bridge forward delay set to 15.
Switch is now the root switch for active VLAN 1. 
What command would you enter to reproduce this output？