Repeater Redundancy

a.In the Name box, enter a new circuit name (up to 16 alphanumeric characters).

b.In the Retries box, enter the number of retries — that is, the number of times the SEHI100TX tests the connection to the ﬁrst IP address listed in the Circuit Addresses list box before it gives up and moves on to the next address. The valid range of retries you can enter into this ﬁeld is 0-16.

c.Be sure to click on before exiting the window to save your changes.

3.With the appropriate Circuit Name highlighted, click to access the Add Circuit Address window, Figure 4-4.

Figure 4-4. The Add Circuit Address Window

You can use this window to deﬁne IP addresses of up to 8 devices on the network. These addresses identify the destination nodes that the SEHI100TX looks for to determine the status of the active link. If the device determines that it has lost the link with the ﬁrst address in the Circuit Addresses list, it checks the link status with the next address. If it can’t establish a link with any address in the list, the device switches trafﬁc to a backup port.

a.To add a circuit address, enter a valid network IP address and then click

. Repeat as necessary to add additional addresses. Click

to exit the window.

NOTE

The SEHI100TX will poll the circuit addresses in the order they were entered.

b.To delete a circuit address, highlight the address in the Circuit Addresses

list in the Channel X Redundancy window, and click .

4.Use the bottom half of the Channel X Redundancy window to deﬁne the primary/active and backup ports for a Circuit:

a.In the Circuit list, highlight the Circuit Name of interest, and click

to ensure that the Status of the circuit is set to Disabled before conﬁguring the port list.

4-4	Setting Network Circuit Redundancy

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.