Once the ring speed for the network is set, each port, trunk or module assigned to that network will assume the speed of the network.

∙Enable support for splitters and fan-out devices

If you are planning to attach passive modules to a segment and there are splitters and fan-out devices attached to the ports of the passive module, you must issue the following command to ensure that an accurate

port-to-address mapping is performed on the network:

SET NETWORK {network} MISMATCH_RESOLUTION {enable}

Note: This command is not required if the network consists of active modules only.

9.38260 18-Port Active Per-Port Switching Module

This module is a single-slot module that supports 18 active ports. The main features of this module are:

∙

∙

18 ports with shielded RJ-45 connectors.

Each port has its own DPLL, which actively re-times and re-generates the signal on that port. This provides longer lobe distances on both UTP and STP. For the lobe distances supported on the active ports, please refer to Table 26 on page 143.

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∙

Each port can be connected to one of the 10 token-ring segments on the ShuntBus or one of the 11 isolated segments on the module. All the ports can be connected to a maximum of 11 segments consisting of backplane and isolated segments.

Note: When you use a backplane (or isolated) segment the equivalent isolated (or backplane) segment is not available. For example if one or more ports are assigned to token_ring_1 segment, no port can be assigned to isolated_1 segment.

Simultaneous UTP and STP cabling is supported on the module. Also, UTP and STP attached stations can be connected to the same segment.

∙Ports 17 and 18 can optionally be configured to be used as RI/RO ports for connection to another hub. This module supports RI/RO connections to an 8228, 8230, 8250 and 8260.

∙Support for beacon recovery using the Recovery ASIC which is implemented on the module. Unlike 8250, there is no need for a management module to resolve beacon conditions.

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Support for address-to-port mapping using the recovery ASIC.

Support for fan-out devices and splitters for attaching up to 8 stations to each port. Note that the fan-out device or the splitter is required to provide a phantom signal; therefore, 8228 cannot be used as the fan-out device with this module.

∙Support for connection of MAC-less stations (such as token-ring tracing tools) to all ports except port 18.

∙Automatic speed detection of the attached stations so that only the stations with the correct ring speed settings can attach to the network.

∙Support for simultaneous 4 and 16 Mbps token-ring networks on the module.

174 8260 Multiprotocol Intelligent Switching Hub

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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.
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