have enable-ipg0enabled might not have enough time on the network. You can add the additional delay by setting the ipg0 parameter from 0 to 255, which is the media byte time delay. TABLE 3-5defines the enable-ipg0and ipg0 parameters.

TABLE 3-5Parameters Defining enable-ipg0and ipg0

Parameter

Values

Description

 

 

 

enable-ipg0

0

enable-ipg0 enable

 

1

enable-ipg0disable (Default=1)

ipg0

0 to 255

The additional time delay (or gap) before

 

 

transmitting a packet (after receiving the

 

 

packet) (Default=8)

 

 

 

The vca device supports the programmable interpacket gap parameters (IPG) ipg1 and ipg2. The total IPG is the sum of ipg1 and ipg2. The total IPG is 0.096 microseconds for the link speed of 1000 Mbps.

TABLE 3-6lists the default values and allowable values for the IPG parameters.

TABLE 3-6Read-Write Interpacket Gap Parameter Values and Descriptions

Parameter

Values

Description

 

(Byte-time)

 

 

 

 

ipg1

0 to 255

Interpacket gap 1 (Default=8)

ipg2

0 to 255

Interpacket gap 2 (Default=4)

 

 

 

By default, the driver sets ipg1 to 8-byte time and ipg2 to 4-byte time, which are the standard values. (Byte time is the time it takes to transmit one byte on the link, with a link speed of 1000 Mbps.)

If your network has systems that use longer IPG (the sum of ipg1 and ipg2), and if those machines seem to be slow in accessing the network, increase the values of ipg1 and ipg2 to match the longer IPGs of other machines.

Chapter 3 Configuring Driver Parameters 29

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Sun Microsystems 4000 manual 5Parameters Defining enable-ipg0and ipg0
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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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