￿

 

 

 

￿

 

 

 

 

 

 

8260> show ring_map token_ring logical token_ring_1

 

 

 

Token Ring Logical Map for Network TOKEN_RING_1

 

 

 

MAC Address

Slot

Port

 

 

-----------------

-----

----

 

 

 

 

02-00-00-c0-cc-1c

05.01

1

 

 

 

 

02-00-00-c0-cc-0a

05.01

2

 

 

 

 

02-00-00-e0-9c-10

05.01

2

 

 

 

 

08-00-8f-40-01-a6

05.01

3

 

 

 

￿

8260>

 

 

￿

 

 

 

 

 

 

 

 

 

 

Figure 100. Address-to-Port Map Display for Fan-Out Attached Devices

There could be situations, where the two MAC addresses between which the new station is inserted are on the same port. This could happen, for example, when two stations are currently attached to a fan-out devices ports 1 and 3 and a third station inserts between them on port 2 of the fan-out device. In this case, the Recovery ASIC concludes that the new station is on the same 8260 port as the two existing stations and will not go through the Duplicate Address Test procedure described above.

Note

With fan-out devices, the phantom signal on the port attaching the fan-out device to the hub will be raised when the first station attached to the fan-out device inserts into the ring. Therefore, a port connecting a fan-out device with no active station will be in no phantomstatus and will have no entry in the address-to-port map table.

Note: To allow the token-ring passive modules to perform address-to-port mapping, when splitters and fan-out devices are used, you must issue the following command:

SET NETWORK TOKEN_RING token_ring_n MISMATCH_RESOLUTION enable

8.10.1.2 Support for MAC-less Stations

The 8260 token-ring modules support the attachment of the MAC-less stations (token-ring trace tools such as IBM DataGlance) without any specific action required on the part of the user.

To support the MAC-less stations, if the Recovery ASIC detects the raising of a phantom voltage on a port and then notes that the neighbor notification process does not show any new MAC address associated with the new phantom voltage, it assumes that the attached station to this port does not have a MAC address and therefore, it sets an address of all zeros for the new port.

An example of the ring_mapdisplay for a module switching module with an IBM DataGlance attached to port 4 is shown in Figure 101 on page 164.

Chapter 8. 8260 Token-Ring Support 163

Page 185
Image 185
IBM 8260 manual Support for MAC-less Stations, SET Network Tokenring tokenringn Mismatchresolution enable

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.