Allied Telesis AT-S63 - Manual (Page 187)

AT-S63 Web Browser User’s Guide for AT-9400 Stacks
Section IV: Spanning Tree Protocols 187
6. Click the Apply button. Your changes are immediately implemented
on the stack.
7. To save your changes in the master configuration file, click the Save
Config button in the Configuration menu.
8. If you activated STP, go to “Configuring STP” on page 188. If you
activated RSTP go to Step “Configuring RSTP” on page 198.