MAC addresses for integrated Ethernet controllers

The Ethernet controllers in the PS703 and PS704 blade servers provide the physical Ethernet ports that, 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 real physical ports.

The logical Ethernet ports connect directly to the integrated Ethernet controller and from there to the I/O modules in the BladeCenter® unit. See Locating the installation instructions for more information on installing VIOS for the virtual Ethernet ports.

The PS703 blade server has two physical integrated Ethernet ports and the PS704 has four physical integrated Ethernet ports.

The medium access control (MAC) addresses of the integrated Ethernet ports are listed on a label on the blade server. The blade server label lists four MAC addresses:

The first two indicate the BMC service processor built-in Ethernet ports.
The next two indicate the two integrated Ethernet ports.

The MAC addresses of the integrated Ethernet ports are displayed in the BladeCenter Advanced Management Module. The logical ports MAC addresses are generated by VIOS.

Table 1 shows the relative addressing scheme.

Table 1. MAC addressing scheme for physical and logical integrated Ethernet controllers
Node	Name in management module	Relation to the MAC that is listed on the PS703 and PS704 label	Example
BMC built-in Enet0		Same as first MAC address	00:1A:64:44:0e:c4
BMC built-in Enet1		MAC + 1	00:1A:64:44:0e:c5
Integrated Ethernet port 0	MAC address 1	MAC + 2	00:1A:64:44:0e:c6
Integrated Ethernet port 1	MAC address 2	MAC + 3	00:1A:64:44:0e:c7
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.

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