802.1D
3.If the Protocol Version is set to RSTP (as shown in figure
a.Press [E] (Edit) to move the cursor to the Protocol Version field.
b.Press the Space bar once to change the Protocol Version field to STP.
c.Press [Enter] to return to the command line.
d.Press [S] (for Save) to save the change and exit from the Spanning Tree Operation screen. you will then see a screen with the following:
The asterisk indicates that you must reboot the switch to implement the configuration change from RSTP to STP.
Figuree.Press [0] (zero) to return to the Main Menu, then [6] to reboot the switch.
f.After you reboot the switch, enter the menu command at the CLI to return to the Main Menu, then select:
2.Switch Configuration …
4.Spanning Tree Operation
You will then see the Spanning Tree screen with STP (802.1D) selected in the Protocol Version field (figure