438 Dell PowerConnect 55xx Systems User Guide
FILE LOCATION:  C:\Users\gina\Desktop\Checkout_new\Maintenance Projects\Dell 
Contax\CxUGSwitching_STP.fm
DELL CONFIDENTIAL – PRELIMINARY 9/11/12 - FOR PROOF ONLY
Global Settings
To enable STP and select the STP mode on the device: 
1
Click 
Switching
 > 
Spanning Tree 
> 
Global Settings 
in the tree view to 
display the 
Global Settings 
page. 
Figure 13-1. Global Settings 
The currently-defined settings are displayed.
2
Enter the fields:
–
Spanning Tree State
 — Enable Spanning Tree on the device.
–
STP Operation Mode
 — Select the STP mode enabled on the device. 
The possible options are: 
•
Classic STP
 — Enables Classic STP on the device. 
•
Rapid STP
 — Enables Rapid STP on the device. This is the 
default value.
•
Multiple STP
 — Enables Multiple STP on the device.