Setting up the LAN-on-motherboard feature

This topic provides information about setting up the LAN-on-motherboard (LOM) feature.

Some models of the Flex System x220 Compute Node have an Ethernet LAN-on-motherboard (LOM) controller integrated on the system board. The LOM provides the following features:
  • One-port physical NIC mode (pNIC).

    For more information about how LOM ports are mapped to switch modules in the chassis, see "Configuring I/O modules".

  • Link auto negotiation 1 Gb/1 Gb full duplex.
  • Bus-mastering support.
  • Direct memory access (DMA) support.
  • Interoperability with existing Fibre Channel SAN infrastructures, such as switches, arrays, SRM tools, SAN practices, and other infrastructures.
  • 1 Gb MAC features such as MSI-X support, jumbo frames (8 KB) support, VLAN tagging (802.1Q, PER priority pause/priority flow control), and advanced packet filtering.
  • NIC failover support.
  • Support for IBM Fabric Manager.
  • Preboot Execution Environment, UEFI, and legacy PXE.
  • Wake on LAN (WOL).

No host operating-system changes are required for you to use the LOM features. Network interface cards and host bus adapter functionality (including device management, utilities, and other functions) are transparent to the host operating system.