Dell Broadcom NetXtreme Family of Adapters User Manual page 74

Device Icons
The icon next to each device in the Device Management pane shows its status. An icon next to a device name that appears normal means the device is
connected and working.
X. A red "X" that appears on the device's icon indicates the device is currently not connected to the network.
Greyed out. A device icon that appears greyed out indicates the device is currently disabled.
Team Management
The Team Management pane displays how network adapters have been grouped together to function as a team, or virtual LAN. The pane separates the
adapters that have been grouped into a team from those that remain unassigned.
Team Management only becomes available when more than one Broadcom network adapters are installed and available to be grouped into a team.