Monitoring Hub Performance

Using the SEHI100TX Hub View

Hub View Port Color Codes

The Port Status boxes in the Hub View are color coded to indicate the portÕs connection status. The colors are consistent for all Port Display Forms except Admin Status; the exceptions are noted below.

¥Green indicates that the port is active; that is, the port has been enabled by management, has a valid Link signal (if applicable), and is able to communicate with the station at the other end of the portÕs cable segment. Note that an AUI or transceiver port will display as active as long as it has been enabled by management, even if no cable is connected.

¥Blue indicates that the port has been disabled through management.

¥Yellow indicates that the port is enabled but does not currently have a valid connection. This usually indicates that the device at the other end of the segment is turned off.

¥Red indicates that the port is enabled, but is not able to pass packets. This generally means that the port has been segmented by management after experiencing an excessive number of collisions; for a BNC (thin coax) port, however, this may only mean that no cable or terminator has been connected.

When the Admin Status port display option is active, only two colors apply: a port will be displayed in green if it is enabled by management, regardless of whether or not there is a cable attached or a valid link signal detected; a port disabled by management will display as blue.

The information displayed in the Hub View can give you a quick summary of device activity, status, and conÞguration. SPMA can also provide further details about device performance via its three-level menu structure. The Device, Module, and Port menus (Figure 2-5) give you control over the device at these three levels and give you access to the tools, menus, and windows that let you monitor speciÞc aspects of device performance, change hub display options, and set SEHI100TX operating and notiÞcation parameters. Remember, though many functions will operate the same at each level, those accessed via the Device menu control or provide information about the SEHI100TX-managed stack as a whole; those accessed via the Module menu control or provide information about a single hub in the stack; and those accessed via the Port menu control or provide information about a single port.

Monitoring Hub Performance

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SEHI100TX-22 specifications

Cabletron Systems SEHI100TX-22 is a high-performance network interface card that has been designed for reliable data transfer in various networking environments. Ideal for both enterprise and small business applications, the SEHI100TX-22 delivers exceptional performance at a competitive price point.

One of the standout features of the SEHI100TX-22 is its support for 100Base-TX Ethernet standards, which enables high-speed data transmission at rates of up to 100 Mbps. This high throughput capacity makes it an excellent choice for organizations that require swift and efficient data handling, particularly in environments with heavy network traffic.

The card is equipped with two RJ-45 connectors, allowing it to support dual-port configurations. This dual-port setup enhances networking capabilities by enabling fault tolerance and load balancing, ensuring that the network remains operational even in the event of a failure. Moreover, it supports full-duplex operation, allowing for simultaneous bi-directional data transmission, further improving overall network efficiency and performance.

Another significant advantage of the SEHI100TX-22 is its compatibility with a wide range of operating systems and platforms, including Windows, Linux, and various UNIX variants. This versatility ensures that it can be seamlessly integrated into existing network infrastructures without the need for extensive configuration or modification.

In terms of installation and maintenance, the SEHI100TX-22 is user-friendly, thanks to its Plug and Play capability. This feature allows for easy installation; users can simply insert the card into an available PCI slot, and the operating system will automatically recognize and configure the device, minimizing downtime and simplifying the setup process.

Additionally, the SEHI100TX-22 incorporates advanced technologies like Auto-Negotiation, which automatically detects the speed and duplex capabilities of the connected device, thus optimizing the network performance. The card also features various onboard diagnostic LEDs, providing real-time feedback on connection status and data activity, which aids in troubleshooting and performance monitoring.

In summary, the Cabletron Systems SEHI100TX-22 offers a robust set of features that cater to the demands of modern network environments. With its high-speed capabilities, dual-port support, compatibility across multiple operating systems, and user-friendly installation process, it remains a solid choice for organizations looking to enhance their networking performance and reliability.