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Defining STP Root Guard

Defining STP Global Settings

The
Spanning Tree Global Settings
page contains parameters for enabling STP on the device. To open the
Spanning Tree Global Settings
page, click
Switch
→
Spanning Tree
→
Global Settings
in the tree view.
Figure 1-30. Spanning Tree Global Settings
The
Spanning Tree Global Settings
page contains the following fields:
Spanning Tree State
— Enables or disables STP, Rapid STP, or MSTP on the device.
STP Operation Mode
— Indicates the STP mode by which STP is enabled on the device. The possible field
values are:
Classic STP
— Enables Classic STP on the device. This is the default value.
Rapid STP
— Enables Rapid STP on the device.
Multiple STP
— Enables Multiple STP on the device.
Path Cost Default Values
— Specifies the method used to assign default path costs to STP ports. The possible
field values are:
Short
— Specifies 1 through 65,535 range for port path costs. This is the default value.
Long
— Specifies 1 through 200,000,000 range for port path costs.