Allied Telesis AT-S63 - Manual (Page 338)

Chapter 20: Multiple Spanning Tree Protocol
338 Section IV: Spanning Tree Protocols
The MSTP Parameters tab is shown in Figure 140.
Figure 140. Monitor MSTP Parameters Tab (Monitoring)
5. Click a port in the switch and click Settings. You can select more than
one port.
The MSTP Settings - Port (s) page is shown in Figure 141.
Figure 141. MSTP Settings - Port(s) Page