Disconnect Timer

is an inactivity timer that determines the length of time the port can go without trans- mitting or receiving characters, as determined by the parameters Timeout if No Login, Timeout if No Call, and Timeout if No Data. (The actual timeout may be up to thirty seconds after the number of minutes specified.)

Disconnect Duration

is the length of time the PAD will drop the modem signals after logout of the user (whether caused by a timeout or user command). For a dial-in line, this should be set to something greater than 0, to ensure that the line does not remain physically con- nected after a timeout or logout. For a leased or directly connected line, Disconnect Duration should be 0, to avoid disconnections.

Timeout if No Login

if Y, starts the disconnect timer the moment the user enters login state; e.g., when DSR is asserted on the modem, or when a direct-connect user logs out. As long as the dis- connect timer has not expired, the user can continue to attempt to log in. On a dial-in line, if the timer has expired and Disconnect Duration is not 0, a physical disconnect will be initiated. (The modem signals will be dropped.)

If the user logs out, the Disconnect Timer will be ignored, and the line will immediately be disconnected.

This parameter should be N for a leased line; otherwise, the PAD banner and prompt will periodically be output. (This is harmless, but unnecessary.)

This parameter is automatically disabled on a PVC connection.

Timeout if No Call

if set to Y, starts the disconnect timer as soon as the user logs in or a virtual circuit is cleared, and the PAD is ready to receive commands from the user. The timer is reset every time the port receives or transmits a call.

This parameter is automatically disabled on a PVC connection.

Timeout if No Data

if set to Y, starts the disconnect timer as soon as a virtual circuit is connected. The timer is reset every time the port receives or transmits a character. If Y is specified and the user has escaped from the data transfer state (by pressing [Ctrl] [P]), any data sent to the port will not be output through the port.

When the disconnect timer expires, the software will check for any data waiting to be output, as well as the state of the user. If there is data waiting and the user has escaped from data transfer state, the user will be returned to data transfer state, and the dis- connect will be canceled.

This parameter is automatically disabled on a PVC connection.

Disconnect if Clear Recvd

determines whether the user will be logged out if he receives a Clear Request from the network. Also, if Disconnect Timer andDisconnect Duration are set to values other than 0, the modem signals will be dropped when the user is logged out.

This parameter is automatically disabled on a PVC connection.

Configuring Async Ports

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Cabletron Systems 1800 manual Disconnect Duration
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1800 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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