Allied Telesis AT-S63 - Manual (Page 486)

Chapter 21: STP and RSTP
486 Section IV: Spanning Tree Protocols
4. If you selected STP as the active spanning tree protocol, go to
“Configuring STP” on page 487 for further instructions. If you selected
RSTP, go to “Configuring RSTP” on page 493. Multiple Spanning Tree
Protocol (MSTP) is described in Chapter 22, “MSTP” on page 501.
Note
After you have configured the spanning tree parameters, perform
steps 5 through 7 to enable spanning tree.
5. To enable or disable spanning tree, type 1 to select Spanning Tree
Status.
The following prompt is displayed:
Enter new value (E-Enable, D-Disable):
6. Type E to enable spanning tree or D to disable it. The default is
disabled.
7. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.