Dell PowerEdge M1000e Enclosure Owner's Manual

Systems installed with quad-port Network Daughter Card support a Port Auto-Disablement feature. This feature disables the third (NIC3) and fourth (NIC4) ports of a quad-port network daughter card during system boot, if the corresponding I/O module installed in the chassis Fabric A slots does not support quad-port mapping. This behavior is limited to Fabric A slots only and is automatically enabled or disabled depending on the type of I/O module installed.

The following table provides an overview of the configurations that enable or disable the NIC3 and NIC4 ports of a quad-port network daughter card.

Table 1. Port Auto-Disablement Decision TablePort Auto-Disablement Decision Table:

IOM Slot A1	IOM Slot A2	NIC3 and NIC4 (Enabled/Disabled)	Port Auto-Disablement
Empty	Empty	Enabled	Inactive
Empty	Dual Port	Disabled	Active
Empty	Quad or Greater Port	Enabled	Inactive
Dual Port	Empty	Disabled	Active
Dual Port	Dual Port	Disabled	Active
Dual Port	Quad or Greater Port	Enabled	Inactive
Quad or Greater Port	Empty	Enabled	Inactive
Quad or Greater Port	Dual Port	Enabled	Inactive
Quad or Greater Port	Quad or Greater Port	Enabled	Inactive