Dial In/Out, Network Trunk Group | Cabletron Systems FRX6000, 1800

X.25 Status and Conﬁguration

Dial In/Out

This parameter only has a function if the port you are conÞguring is a dial port; that is, if the port is connected to a dial modem. It speciÞes whether this port is connected to a dial modem and, if so, whether connections will be initiated through dial-in or dial-out calls. (Signaling differences prevent conÞguration for both dial-in and dial-out on the same port.)

A port speciÞed as Dial Out will establish a link only when an outgoing X.25 call is placed, at which time the port will raise DTR (Data Terminal Ready) and the attached modem will dial a stored number to a remote modem to establish an X.25 connection. A port speciÞed as Dial In will establish a link only when a call is received.

If the port is conÞgured as a network trunk (see Network Trunk Group below), the value must be None.

Generate Clock

This Þeld speciÞes whether the port will generate the clock necessary to synchronize trafÞc over the link. If the port is a physical DCE (determined by the portÕs I/O cable interface), conÞgure this Þeld as Yes, since the physical DCE generates clock. If the port is a DTE, conÞgure this Þeld as No.

Receive Clock from DTE

This parameter is relevant only if Connector Type is something other than RS-232, and the Generate Clock parameter is set to Yes (see above). Selecting Yes for this Þeld allows the clock to be looped back from the DTE using the TT (Terminal Timing) signal, which can be helpful on high-speed lines. Generally, if the local interface is physical DCE and the line speed is above 256 Kbps, this parameter should be set to Yes. (Make sure the remote DTE is conÞgured to provide the terminal timing.)

Network Trunk Group

A network trunk is a link between FRX and SmartSwitch 1800 devices over X.25. You can assign a port to a trunk group which will cause that port to be enabled when the network trunk is operational, or disabled if the network trunk is not operational.

NOTE

Although you can use this window to designate an X.25 port as a member of a trunk group, you must conÞgure the actual network trunk through console management. Refer to your hardware documentation for more information on network trunks.

Blocked Flag

This value will cause the port to be enabled (if No) or disabled (if Yes) when the device is powered up or re-booted.Whichever state is selected, the port will remain in that state until this value is changed or until an enable or disable action is performed.

6-6	Conﬁguring X.25 Physical Ports

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.

Cabletron Systems FRX6000, FRX4000, 1800 manual Dial In/Out, Network Trunk Group

Models: 1800 FRX4000 FRX6000