Using the SEHI Hub View

Date and Time

Displays the current date and time from the SEHI’s internal clock. Although the fields are static in the window, the front panel display is a real-time presentation.

To change the name, location, contact, date, or time:

1.Highlight the appropriate field and type the new values.

2.Press Enter or Return on the keyboard to save each change before moving on to another; each change will appear on the front panel as soon as Enter or Return is pressed.

Chassis Type

Displays the type of chassis used for the device (stand-alone).

Checking Module Status

You can open a Module Status window (Figure 2-7) for any device in the SEHI- controlled stack. To open the Module Status window:

1.Click mouse button 1 in the Module Index box. (Use the scroll bar to the right of the ports display to scroll through the available modules.)

or

1.Click mouse button 3 in the Module Index box to display the Module menu.

2.Drag down to Status and release.

Figure 2-7. Module Status Window

Name

This text field can help identify the module, or device; the information entered here does not appear anywhere else in the Hub View.

To edit the Module Name:

1. Highlight the text in the Name box and type in a new name.

Monitoring Hub Performance

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Cabletron Systems SEHI-22/24, SEHI-32/34 manual Checking Module Status, Chassis Type, Name
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SEHI-22/24, SEHI-32/34 specifications

Cabletron Systems was a notable player in the networking hardware market during the rise of local area networks (LANs) in the late 20th century. Among its innovative products were the SEHI-22/24 and SEHI-32/34 modules, which were designed to enhance network capabilities in enterprise environments.

The SEHI-22/24 and SEHI-32/34 were versatile high-performance Ethernet switch modules that offered significant advantages in network management and connectivity. These modules were designed to work with Cabletron's modular switching and routing architecture, allowing for scalable solutions tailored to specific network demands. A key feature of the SEHI series was its support for a range of Ethernet standards, ensuring compatibility with diverse networking environments.

One notable characteristic of the SEHI-22/24 was its ability to support both 10Base-T and 100Base-TX Ethernet technologies. This dual support enabled organizations to leverage existing 10 Mbps infrastructure while facilitating upgrades to 100 Mbps speeds without needing a complete overhaul of the network. Similarly, the SEHI-32/34 offered even greater connectivity options, accommodating more users and devices while maintaining high throughput and low latency.

In terms of management features, the SEHI series was equipped with extensive traffic management capabilities, including Quality of Service (QoS) features that prioritized bandwidth for critical applications. This ensured that essential services such as voice over IP (VoIP) and video conferencing could function optimally, even during heavy network loads.

Furthermore, both modules featured advanced diagnostics and monitoring tools that provided network administrators with critical insights into traffic patterns and potential bottlenecks. This functionality was essential for maintaining network health and optimizing performance, especially in dynamic business environments.

Security also played a crucial role in the design of the SEHI-22/24 and SEHI-32/34. The modules incorporated support for various authentication methods and access controls, ensuring that sensitive data remained protected within the corporate network.

In summary, Cabletron Systems’ SEHI-22/24 and SEHI-32/34 offered significant advancements in Ethernet switching technology, allowing organizations to build robust, scalable, and secure networks. With their impressive features, compatibility, and capacity for management and security, these modules were instrumental in shaping reliable networking solutions for enterprises navigating the rapidly evolving digital landscape.
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