Have had a couple of requests for setting up Spanning Tree on Procurve 2530 & 2920 switches recently. It’s extremely straightforward & can be done via CLI with Telnet or through the Web Management.
Under the web login(http://ipaddress), login with your manager (read/write) login at the top right corner of the screen. Expand Spanning Tree and Select Tree Management. On the right-hand side, select Change and select the box to enable. Save and you’re done
Select Edit and press Enter from the bottom menu, use your arrows to select STP Enabled & Space Bar to toggle the selection to Yes. Press Enter to go back to the Actions Menu and Select Save to save changes.