2

Selects the highest common denominator mode of operation based on the following priorities:

100 BASE-T4

100 Mbps, full-duplex

100 Mbps, half-duplex

10 Mbps, full-duplex

10 Mbps, half-duplex

The link partner is the networking device (system, Ethernet hub, or Ethernet switch) at the other end of the link or cable. If the SUNW,hme device is connected to a remote system or interface that is not capable of auto- negotiation, the system automatically selects the correct speed and half-duplex mode.

If adapters or systems are connected to a link partner and the auto-negotiation protocol fails to operate successfully, you can configure the device so it does not use this protocol. This forces the driver to set up the link in the mode and speed that you choose instead of using the auto-negotiation protocol.

Internal Transceiver

The internal transceiver is a feature supported by the driver and is capable of all the operating speeds and modes (except the 100BASE-T4 mode) listed in the section “Operating Speeds and Modes” on page 6. When the internal transceiver is used, the default is auto-negotation by the hme driver, which automatically selects the speed and mode of the link. The internal transceiver performs auto-negotiation with the remote end of the link (link partner) to select a common mode of operation.

The internal transceiver also supports a forced mode of operation. This is where the user selects the speed and mode using the ndd utility, the /etc/system file, or the hme.conf file. The ndd utility makes calls to the hme driver to choose the speed and mode.

External Transceiver

When an external transceiver (not present on the SunSwift SBus Adapter) is connected to the MII interface, the driver selects the external transceiver for networking operations.

The hme Device Driver

7

Page 15
Image 15
Sun Microsystems none manual Internal Transceiver, External Transceiver

none specifications

Sun Microsystems, established in 1982, became a pioneering force in the realms of computing and technology. Initially founded by four Stanford University graduates, the company was built on innovative ideas and a vision to create powerful computing solutions. One of the standout features of Sun Microsystems was its commitment to open systems and network computing. Sun's early adoption of Unix operating systems significantly influenced the development of reliable and scalable systems.

One of the key technologies developed by Sun was the SPARC architecture. This scalable, high-performance RISC (Reduced Instruction Set Computer) architecture powered many of its servers and workstations, allowing for enhanced computing capabilities. SPARC systems were well-regarded for their performance efficiency and reliability, making them a popular choice for enterprise applications.

Sun also played a crucial role in software development. The introduction of the Java programming language in the mid-1990s revolutionized how developers approached cross-platform application development. With its tagline “Write Once, Run Anywhere,” Java enabled applications to run on various platforms without modification. This technology became foundational in web-based applications and enterprise solutions.

Another notable aspect of Sun Microsystems was its commitment to networking and storage solutions. The company developed robust server systems that catered to high-performance computing demands, supporting enterprises in managing vast amounts of data. Sun’s Network File System (NFS) allowed seamless file sharing across networks, which became a standard in many organizations.

The company was also a pioneer in providing various services and solutions for data centers, including virtualization and cloud computing approaches that preceded the wave of cloud services we see today. Their emphasis on innovative storage solutions and data management systems positioned them as industry leaders.

Though Sun Microsystems was acquired by Oracle Corporation in 2010, its technological legacy continues to shape the IT landscape. The contributions made by Sun in areas such as software development, hardware architecture, and open systems have left an indelible mark on the technology industry. The emphasis on openness and innovation laid the groundwork for many principles that guide modern computing, making Sun Microsystems an integral part of the history of technology.