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CHAPTER
4
Network Interfaces and System
Firmware
This chapter describes the networking options of the system and provides
background information about the system’s firmware.
Information covered in this chapter includes:
■ “About the Network Interfaces” on page 47
■ “About Redundant Network Interfaces” on page 48
■ “About the ok Prompt” on page 49
■ “About OpenBoot Environmental Monitoring” on page 52
■ “About OpenBoot Emergency Procedures” on page 54
■ “About Automatic System Recovery” on page 55
■ “About Manually Configuring Devices” on page 59
■ “Reference for Device Identifiers” on page 61
About the Network Interfaces
The Sun Fire V490 server provides two on-board Ethernet interfaces, which reside on
the system centerplane and conform to the IEEE 802.3z Ethernet standard. For an
illustration of the Ethernet ports, see
FIGURE 2-4. The Ethernet interfaces operate at 10
Mbps, 100 Mbps, and 1000 Mbps.