Enabling Autonegotiation or Forced Mode for Link Parameters With the OpenBoot PROM

The following parameters can be configured to operate in autonegotiation or forced mode at the OpenBoot PROM (OBP) interface:

TABLE 3-11Local Link Network Device Parameters

Parameter

Description

 

 

speed

This parameter can be set to auto, 1000, 100, or 10; the syntax is as follows:

 

• speed=auto (default)

 

• speed=1000

 

• speed=100

 

• speed=10

duplex This parameter can be set to auto, full, or half; the syntax is as follows:

•duplex=auto (default)

•duplex=full

•duplex=half

link-clockThis parameter is applicable only if the speed parameter is set to 1000 or if you are using a 1000 Mbps MMF Sun Crypto Accelerator 4000 board. The value for this parameter must correspond to the value on the link partner—for example, if the local link has a value of master, the link partner must have a value of slave. This parameter can be set to master, slave, or auto; the syntax is as follows:

•link-clock=auto (default)

•link-clock=master

•link-clock=slave

To establish a proper link, the speed, duplex, and link-clock(1000 Mbps only) parameters must be configured correctly between the local link and the link partner. Both link partners must operate in either autonegotiation or forced mode for each of the speed, duplex, and link-clock(1000 Mbps only) parameters. A value of auto for any of these parameters configures the link to operate in autonegotiation mode for that parameter. The absence of a parameter at the OBP prompt configures that parameter to have a default value of auto. A value other than auto configures the local link to operate in forced mode for that parameter.

Chapter 3 Configuring Driver Parameters 41

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Sun Microsystems 4000 manual 11Local Link Network Device Parameters
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4000 specifications

Sun Microsystems, a pivotal player in the computing industry during the late 20th and early 21st centuries, was renowned for its innovative hardware and software solutions. Among its notable offerings were the Sun-6000, Sun-5000, and Sun-4000 series, powerful workstations and servers designed for a range of enterprise-level applications.

The Sun-6000 series, introduced in the early 1990s, marked a significant advancement in computing performance. These systems were built on the SPARC architecture, which facilitated high levels of processing power and multitasking capabilities. One of the main features of the 6000 series was its scalability, allowing organizations to increase their processing power by adding more modules. It also offered robust graphics performance, making it ideal for scientific visualization and complex data analysis.

Next in line was the Sun-5000 series. Launched shortly after the 6000 series, the 5000 line was celebrated for its reliability and ease of management. This series emphasized a balanced architecture, which combined processing capabilities with ample memory and storage options. Key characteristics included support for multiple processors, leading to improved performance for demanding applications. Additionally, the 5000 systems featured advanced input/output capabilities, ensuring fast data transfers—crucial for database applications and web servers.

Finally, the Sun-4000 series targeted businesses seeking affordable yet potent computing solutions. These servers boasted a modular design, allowing for easy upgrades and maintenance. The 4000 series was particularly notable for its support for various operating systems, including SunOS and Solaris. These systems were engineered to handle a range of workloads, from enterprise resource planning to web hosting, while still fitting into a value-driven budget.

Across all three series, Sun Microsystems prioritized compatibility and integration, ensuring that each system offered seamless connectivity with Sun's software solutions and third-party applications. Their commitment to open standards and interoperability set them apart in the competitive landscape of enterprise computing. Additionally, the use of high-quality components lent the systems durability, making them a wise investment for organizations looking to future-proof their IT infrastructure.

In summary, the Sun-6000, 5000, and 4000 series exemplified Sun Microsystems' ethos of innovation and reliability. These powerful systems catered to diverse business needs, setting benchmarks in performance and functionality that continue to influence modern computing.
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