# Configuring STG Global properties

Use this procedure to configure the STG global properties.

## Procedure steps

1. From the navigation tree, double-click VLAN.

2. From the VLAN tree, double-click Spanning Tree.

3. From the Spanning Tree folder, double-click STG.

4. Select the Globals tab.

5. Select the STP path cost calculation mode:

6. Select the STP port mode:

7. Check the SpanningTreeAdminCompatibility box to enable 802.1d port learning.

8. Click Apply.

## Variable definitions

The following table outlines the parameters of the Globals tab.

Table 1. STG Globals tab parameters
Variable | Value
--- | ---
SpanningTreePathCostCalculationMode | Specifies the current spanning-tree path cost calculation mode. The value ieee802dot1dCompatible is valid only when the switch is running in Avaya STPG mode.
SpanningTreePortMode | Specifies the STG port membership mode for all Spanning Tree Groups on the switch.
SpanningTreeAdminCompatibility | Specifies whether the learning mode of a port stays in the Forwarding state or changes to the Disabled state when the port operation status goes down. If the box is checked, the port goes to the disabled state when down.
SpanningTreeOperCompatibility | Specifies the operational compatibility mode for features controlled by the associated object.