Allied Telesis AT-S62 - Manual (Page 744)

Chapter 45: STP, RSTP, and MSTP
Section VIII: Web Browser Management 744
7. Click Apply.
8. If you activated STP, go to Configuring STP on page 745. If you
activated RSTP go to Configuring RSTP on page 748. If you selected
MSTP, go to Configuring MSTP on page 752.