Allied Telesis AT-GS950/48 - Manual (Page 97)

AT-GS950/48 Web Interface User Guide
97
Role - Indicates whether or not the port is prevented from being a
root port.
Enabled - The port is prevented from being a root port or a port
that is used to communicate with the root bridge.
Disabled - This switch can only operate with RSTP and MSTP
packets.
4. Once you have configured the parameters, click Apply in the Action
column.
5. If you choose to change the MSTP port settings for other ports, repeat
Step 3 and Step 4.
6. From the main menu on the left side of the page, select Save Settings
to Flash to permanently save your changes.