Network Type; Speed Selection - IBM p5 590 System Handbook

But if you use a private indirect connection over a client Ethernet switch or hub,
media speed may need to be set (Figure 8-12).
Figure 8-12 Speed selection
The next panel allows you to specify whether network is private or open
(Figure 8-13). Ethernet 0 is normally used for a private service network all other
network adapter are open network. A private network connection using DHCP is
required on the p5-590 and p5-595 for the first HMC.
Figure 8-13 Network type
In the example, we choose the private service network. Go to the DHCP
configuration. The HMC provides Dynamic Host Configuration Protocol (DHCP)
services to all clients in a private network. These clients will be our managed
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Chapter 8. Hardware Management Console overview