Use this page to view or set Logical Host Ethernet Adapter (LHEA) properties for this partition profile. The LHEA properties that you set here allow the logical partition to use resources on a Host Ethernet Adapter (HEA) on this managed system. HEAs are also known as Integrated Virtual Ethernet adapters (IVE adapters).
An HEA is a physical Ethernet adapter that is integrated directly into the system (GX+ bus) on a managed system. HEAs offer high throughput, low latency, and virtualization support for Ethernet connections. HEAs have the same uses as other types of physical Ethernet adapters. For example, you can use an HEA to establish a console connection to a logical partition.
Unlike most other types of I/O devices, you can never assign the HEA itself to a logical partition. Instead, multiple logical partitions can connect directly to the HEA and use the HEA resources. This allows these logical partitions to access external networks through the HEA without having to go through an Ethernet bridge on another logical partition.
To connect a logical partition to an HEA, you must create an LHEA for the logical partition. An LHEA is a representation of a physical HEA on a logical partition. An LHEA appears to the operating system as if it were a physical Ethernet adapter, just as a virtual Ethernet adapter appears as if it were a physical Ethernet adapter. When you create an LHEA for a logical partition, you specify the resources that the logical partition can use on the actual physical HEA. Each logical partition can have one LHEA for each physical HEA on the managed system. Each LHEA can have one or more logical ports, and each logical port can connect to a physical port on the HEA.
After you create an LHEA for a logical partition, a network device is created in the logical partition. The user can then set up TCP/IP configuration similar to a physical Ethernet device and use the LHEA as if it were a physical Ethernet adapter.
You can configure a new logical port or change the configuration of an existing logical port by selecting the physical HEA to which the logical port connects, selecting the physical port to which the logical port connects under LHEA Table, and clicking Configure.
You can clear the logical port information for a physical port by selecting the physical HEA to which the logical port connects, selecting the physical port to which the logical port connects under LHEA Table, and clicking Reset. You can clear only one physical port at a time using the Reset button.
You can find more detailed help on the following elements of this window: