MAC addresses for integrated Ethernet controllersTwo integrated Ethernet ports are used by the service processor on the IBM Flex System p260 ComputeNode or IBM Flex System p460 Compute Node. Additional Ethernet ports are provided by the featurecards plugged into the two expansion cards slots. These expansion card Ethernet ports, when used with aVirtual I/O Server (VIOS), provide virtual logical Ethernet to client logical partitions (LPARs). The VIOSsoftware uses the logical Ethernet as if they were actual physical ports.About this taskThe Media Access Control (MAC) addresses of the integrated Ethernet ports are listed on a label on thecompute node. The compute node label lists two MAC addresses. The MAC addresses of the integratedEthernet ports are displayed in the Chassis Manager in the management software web interface of theIBM Flex System Manager and in the Hardware Management Console (HMC), and in the IntegratedVirtualization Manager (IVM). The MAC addresses of the logical ports are generated by VIOS.To view the MAC addresses of the Ethernet ports by using HMC, click HMC Management > ChangeNetwork Settings > LAN Adapters.To view the MAC addresses of the Ethernet ports by using IVM, click View/Modify TCP/IP Settings >Properties > Connected Partitions.Table 5 shows the relative addressing scheme.Table 5. MAC addressing scheme for physical and logical integrated Ethernet controllersNode Name in managementmoduleRelationship to the MACthat is listed on the IBMFlex System p260 ComputeNode or IBM Flex Systemp460 Compute Node labelExampleService processor built-inEnet0 Same as first MAC address 00:1A:64:44:0e:c4Service processor built-inEnet1MAC + 1 00:1A:64:44:0e:c5Logical Ethernet ports Generated by VIOS1. The Integrated Virtualization Manager (IVM), see Updating the Integrated Virtualization Manager.For more information about planning, deploying, and managing the use of integrated Ethernetcontrollers, see the Configuring section of the PowerVM Information Roadmap.Chapter 3. Configuring the compute node 27
