Dell POWEREDGE M1000E - Manual (Page 646)

646 Configuring the Spanning Tree Protocol
STP LAG Settings
Use the STP LAG Settings page to assign STP aggregating ports parameters.
To display the STP LAG Settings page, click Switching → Spanning Tree →
STP LAG Settings in the navigation panel.
Figure 22-7. STP LAG Settings
Configuring STP Settings for Multiple LAGs
To configure STP settings on multiple LAGS:
1 Open the STP LAG Settings page.
2 Click Show All to display the STP LAG Table.