D-Link DWS-4026 User Manual page 544

D-Link Unified Access System
8 Use similar procedures to enable STP on port 0/2.
9 Force port 0/2 to be the root port for MST 20, which is the non-root bridge.
a. Go to the LAN > L2 Features > Spanning Tree > MST Port Configuration/Status page.
b. From the MST ID menu, select 20.
c. From the Slot/Port menu, select 0/2.
d. In the Port Priority field, enter 64.
e. Click Submit.
Page 544 Configuring Multiple Spanning Tree Protocol
Software User Manual
Document 34CSFP6XXUWS-SWUM100-D7
12/10/09