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MAC addresses for integrated Ethernet controllers
Two integrated Ethernet ports are used by the service processor on the IBM Flex System p270 Compute
Node. Additional Ethernet ports are provided by the feature cards plugged into the two expansion cards
slots. These expansion card Ethernet ports, when used with a Virtual I/O Server (VIOS), provide virtual
logical Ethernet to client logical partitions (LPARs). The VIOS software uses the logical Ethernet as if they
were actual physical ports.
About this task
The Media Access Control (MAC) addresses of the integrated Ethernet ports are listed on a label on the
compute node. The compute node label lists two MAC addresses. The MAC addresses of the integrated
Ethernet ports are displayed in the Chassis Manager in the management software web interface of the
IBM Flex System Manager and in the Hardware Management Console (HMC), and in the Integrated
Virtualization 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 > Change
Network 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 4 shows the relative addressing scheme.
Table 4. MAC addressing scheme for physical and logical integrated Ethernet controllers
Node
Name in management
module
Relationship to the MAC
that is listed on the IBM
Flex System p270 Compute
Node label
Example
Service processor built-in
Enet0
Same as first MAC address
00:1A:64:44:0e:c4
Service processor built-in
Enet1
MAC + 1
00:1A:64:44:0e:c5
Logical Ethernet ports
Generated by VIOS
For more information about planning, deploying, and managing the use of integrated Ethernet
controllers, see the Configuring section of the PowerVM Information Roadmap.
Configuring a RAID array
Use this information to configure a RAID array.
Chapter 3. Configuring the compute node
21
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