SNA Status and Configuration

Possible line speed entries are:

75

64000

512000

1008000

1472000

150

72000

560000

1024000

1512000

300

112000

576000

1064000

1536000

600

128000

616000

1088000

1568000

1200

168000

640000

1120000

1600000

2400

192000

672000

1152000

1624000

4800

224000

704000

1176000

1664000

9600

256000

728000

1216000

1668000

14400

280000

768000

1232000

1728000

19200

320000

784000

1280000

1792000

24000

336000

832000

1288000

1856000

28800

384000

840000

1344000

1920000

38400

392000

896000

1400000

1984000

48000

448000

952000

1408000

2048000

56000

504000

960000

1456000

 

If you enter a value that is within the valid range but not equal to one of the values listed above, the speed will be rounded up. If an RS-232 DCE port is directly connected to the DTE via the standard Cabletron cable, the maximum supported speed is 64000. If longer cabling is used, the maximum speed is 19200.

MAX Retries

This is the maximum number of times the port will attempt to send a frame if the physical unit (PU) is not responding. A larger value increases the probability of an eventual correct transfer between DTE and DCE, but a smaller value permits faster detection of a permanent error condition. The default value for this parameter is 5.

Inactivity Timer

This parameter is only relevant if PAD Type (see below) is HPAD. It is the amount of time (in seconds) that the FRX will wait with no activity on the port before it declares the port is down. The default value for this parameter is 50.

Physical Port Interface

The physical port interface is deÞned by the portÕs connector and cabling type, and must be conÞgured as follows:

¥For the FRX4000 and SmartSwitch 1800, port 0 and port 1 are always RS-232;

NOTE

If you have installed the optional CSU/DSU card on an FRX4000 or SmartSwitch 1800, it will logically take port 1, and you must conÞgure certain CSU/DSU parameters through console management. Refer to your FRX or SmartSwitch 1800 hardware documentation for more information.

¥For the FRX4000, ports 2 and 3 are determined by the attached cables: RS-232, V.35, RS-449, or X.21;

7-4

Configuring SNA Ports

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Image 128
Cabletron Systems 1800, FRX4000, FRX6000 manual MAX Retries, Inactivity Timer
Page 127 Page 129

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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