Frame Relay Status and Configuration

BECN (Transmitted and Received)

Displays the number of frames with the BECN (backward explicit congestion notiÞcation) bit set that were transmitted or received on the selected port, expressed as a rate (frames/second). BECN frames notify the user that trafÞc sent in the opposite direction to the received frame may encounter a congested path; this alerts the device to reduce inbound trafÞc.

FECN (Transmitted and Received)

Displays the number of frames with the FECN (forward explicit congestion notiÞcation) bit set that were transmitted or received on the selected port, expressed as a rate (frames/second). FECN frames notify the receiving device that the frames have been delivered through a congested network path; this alerts the destination device to slow its transmission rate.

Errors

The Error Statistics window displays the rate at which frames are being discarded at the selected port. To access the window:

1.Click mouse button 3 on the frame relay port of interest to display the Port Menu.

2.Drag down to Frame Relay Errors, and release. The Frame Relay Errors window, Figure 5-7, will appear.

Figure 5-7. Frame Relay Errors

The Errors window provides a single meter displaying the following statistic:

Frames Discarded

Displays the number of incoming and outgoing frames discarded due to congestion, expressed as a rate (frames/second).

Viewing Frame Relay Status

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Cabletron Systems FRX4000, FRX6000 Errors, Becn Transmitted and Received, Fecn Transmitted and Received, Frames Discarded

1800, FRX4000, FRX6000 specifications

Cabletron Systems, a leading player in network management and telecommunications solutions during the late 20th century, introduced several innovative products that played a crucial role in shaping enterprise networking. Among these were the Cabletron FRX6000, FRX4000, and the FRX1800, which delivered advanced features aimed at enhancing network performance, security, and scalability.

The Cabletron FRX6000 was designed as a robust multi-layer switch, ideal for large-scale enterprise environments. It supported extensive routing capabilities, allowing organizations to manage traffic efficiently even under heavy loads. The FRX6000 boasted high throughput rates and low latency, making it suitable for demanding applications. With support for various network protocols, including IP, IPX, and AppleTalk, its adaptability made it a versatile choice for diverse networking needs. Moreover, security features like VLAN support and Access Control Lists (ACLs) provided enhanced protection against potential threats.

Moving to the FRX4000, this model offered a balance between performance and cost-effectiveness. The FRX4000 maintained many of the essential features of its larger counterpart while catering to medium-sized enterprises. It provided Layer 3 routing and could handle multiple simultaneous connections, ensuring seamless communication across departments. The modular design allowed for easy upgrades, enabling businesses to expand their network infrastructure without significant overhauls. This made the FRX4000 an attractive option for organizations looking to optimize their network investments.

Lastly, the FRX1800, designed for small to medium businesses, focused on simplicity and ease of use while still incorporating powerful network management capabilities. Its user-friendly interface made it accessible for organizations lacking extensive IT resources. The FRX1800 provided essential functionalities such as Integrated Layer 2 switching and routing, network monitoring, and basic security features, ensuring that even smaller companies could maintain efficient, reliable networking without overwhelming complexity.

All three models utilized advanced technologies, including a high bandwidth backbone and state-of-the-art switching architecture, to enable fast and reliable data transfer. They also supported Quality of Service (QoS) mechanisms, allowing businesses to prioritize critical applications and ensure consistent performance across the network.

In summary, the Cabletron FRX6000, FRX4000, and FRX1800 were pivotal in enhancing network capabilities, providing organizations with scalable, secure, and high-performance options tailored to their specific needs.