Allied Telesis AT-S63 - Manual (Page 311)

AT-S63 Management Software Web Browser Interface User’s Guide
Section IV: Spanning Tree Protocols 311
4. Verify there is no check in the Enable Spanning Tree check box. If
there is a check, click the option to remove it. Spanning tree must be
disabled in order for you to return it to its default settings.
5. Click Configure.
The Configure STP Parameters tab is shown in Figure 124 on page
305.
6. Click Defaults.
The STP settings are returned to their default values.
7. From the Configuration menu, select the Save Config option to
permanently save your changes. (This option is not displayed if there
are no changes to save.)