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IBM 8260 ∙ Data enable signal, Data in NRZ format, Local collision, Remote Collision, Port-ID

Models: 8260

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Table 2 (Page 2

of 2). Ethernet Pins on the 8260 Backplane

 

 

 

 

 

 

 

Description

 

 

Method 1

Method 2

Method 3

 

 

 

 

 

 

 

 

Slot ID bit 3

 

 

Y

Y

N/A

 

 

 

 

 

 

 

 

Slot ID bit 4

(msb)

 

Y

Y

N/A

 

 

 

 

 

 

 

 

Serial ID

 

 

N

Y

Y

 

 

 

 

 

 

 

 

The following is a brief description of the use of each of the pins in an Ethernet segment on the 8260 backplanes:

∙Data enable signal:

∙

∙

When this signal is active, data on the backplane is valid and the modules should receive and process the data on the ′Data in NRZ Format′ pin.

Data in NRZ format:

This signal is used to transmit data on the backplane in NRZ format.

Local collision:

∙

∙

This signal is used to indicate local collisions on the backplane. It is raised when two or more modules on the same segment are transmitting data at the same time. It is also raised if two or more ports on the same module transmit simultaneously.

Remote Collision:

This signal is raised when a collision occurs in a remote hub. This signal is only used by the 10Base-FB modules.

Port-ID:

Whenever an Ethernet module using method 1 transmits data on the backplane, it must sent the port-id of the transmitting port on these pins.

The Management module will use the port-id and slot-id (see below) signals to find out which port and module is sending the data on the ′Data in NRZ Format′ pin; hence, it is able to collect and report per-port statistics.

Note: Since four pins are used to transmit the port ID in parallel, the

per-port statistics cannot be reported for all the ports of the 24-port modules. On a 24-port module, you can collect statistics about the first 12 ports only.

∙Slot ID:

Whenever an Ethernet module is using method 1 or 2 to transmit data on the backplane, it must send its slot-id on these five pins. This information is used for two purposes:

1.Digital collision detection

2.Statistics collection

∙Serial-ID:

This pin is used to transmit the port-id and slot-id, over the backplane, in serial format. Its purpose is to provide the Management module with a way to collect per-port and per-module statistics for modules using method 2 and 3.

∙Analog Collision:

18 8260 Multiprotocol Intelligent Switching Hub

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IBM 8260 ∙ Data enable signal, Data in NRZ format, Local collision, Remote Collision, Port-ID, ∙ Slot ID, ∙ Serial-ID
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8260 specifications

The IBM 8260 is a significant entry in the realm of enterprise servers, recognized for its performance, scalability, and robust features designed to cater to demanding business environments. It primarily serves as a high-capacity server for large organizations, capable of handling extensive workloads and complex applications without compromising speed or efficiency.

One of the standout features of the IBM 8260 is its powerful processing capabilities. It typically comes equipped with multiple processor units based on the IBM POWER architecture, which is renowned for its high-performance computing. This architecture allows the server to execute numerous simultaneous tasks, making it ideal for environments that require multitasking and high throughput.

Memory capacity is another key characteristic of the IBM 8260. Depending on the specific configuration, it can support substantial amounts of RAM, ensuring that applications can run effectively without the bottlenecks often associated with data-intensive tasks. This is crucial for enterprises that rely on real-time data analytics, large database management, and resource-heavy applications.

In terms of storage, the IBM 8260 offers flexible options. It supports a variety of storage solutions, including solid-state drives (SSDs) and traditional hard drives, catering to different performance and capacity needs. This scalability in storage helps organizations manage their data effectively while ensuring quick access and retrieval times.

Connectivity is also a prominent feature of the IBM 8260. The server includes advanced networking capabilities, supporting various protocols and technologies that facilitate fast data transfer and communication between devices. This enhances overall network performance, essential for businesses that depend on cloud computing and distributed computing environments.

Additionally, the IBM 8260 is designed with a focus on reliability and availability. It incorporates redundant components, such as power supplies and cooling systems, minimizing the risk of downtime. This is critically important for enterprises that require continuous availability of services.

The server’s management features are also noteworthy. IBM provides a suite of management tools that allow IT administrators to monitor performance, configure hardware settings, and troubleshoot issues seamlessly. This ease of management is bolstered by automation capabilities, enabling organizations to enhance operational efficiency.

In conclusion, the IBM 8260 stands out in the competitive server landscape due to its high processing power, extensive memory and storage options, advanced connectivity, reliability features, and robust management tools. Such attributes make it a viable choice for organizations seeking to enhance their IT infrastructure and streamline their operations effectively.