Using the FRX4000, FRX6000, and SmartSwitch 1800 Hub View

 

sequence (like the CRC, or cyclic redundancy check) is a

 

value computed at both the sending and receiving ends

 

of the connection; if the computed values donÕt match,

 

the frame is assumed to have been corrupted in transit. A

 

value consistently greater than zero indicates line

 

problems.

Logical Rejects

The sum of frame rejects Ñ frames which are dropped due

 

to congestion or some other transmission problem Ñ and

 

reject frames Ñ protocol frames that notify the sender that

 

one or more packets is missing from a sequence. The total

 

is expressed as a rate (rejects/second); a value

 

consistently greater than zero indicates line problems.

Rx Utilization %

The ratio of non-ßag characters (the space between

 

frames) to the total number of characters received on the

 

selected serial port; that is, the percentage of available

 

bandwidth being utilized.

Tx Utilization %

The ratio of non-ßag characters (the space between

 

frames) to the total number of characters transmitted on

 

the selected serial port; that is, the percentage of available

 

bandwidth being utilized.

LAN Card Health

The LAN Card Health Statistics window provides standard MIB II stats for the selected LAN interface; note that the same statistics are provided for both Ethernet and Token Ring interfaces.

To access LAN Card Health statistics:

1.In the Hub View, click on the appropriate Module Index or Module Name text box to display the LANCard Menu (see Figure 2-3, page 2-6).

2.Drag down to Health, and release. The LAN Health Statistics window, Figure 2-14, will appear.

Monitoring Hub Performance

2-27

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Cabletron Systems FRX6000, FRX4000, 1800 manual LAN Card Health
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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.
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