Table 12-3

Async Port Parameters

(continued)

 

 

 

Parameter

Valid Values

Default Value

 

 

 

 

 

 

Async PAD Options

 

 

 

 

 

Async PAD Type

0–2 2

0 (X.3)

Devices Connected

PAD Type 0,2: 1

 

 

PAD Type 1: 1–16

1

 

 

 

Assemble Full Message

Y/N 3

Y

Data For warding Criteria

0

0 (use PAD profile)

 

 

 

Special Forwarding Char

not currently used

n/a

 

 

 

Dynamic Signaling Action

0 (none)

0 (none)

 

 

 

1At line speeds of 38.4K bps or higher, RTS/CTS H/W Flow Contr ol should be Y.

2If 1 (Transparent Polled Async HPAD) or 2 (Transparent Polled Async TPAD), con- figure this async port as one end of an HPAD–TPAD PVC.

3If Assemble Full Message isY, the remote device must be configured to generate M-bit packets.

4The Default Calling Address is relevant only if Disable X. 121 User Calls is N.

5The Called Address is relevant only if Autocall is Y.

Port Type

specifies the protocol the port will support. Selecting this parameter will display a list of all serial protocols loaded in the device.

Physical Port Interface

must be configured as follows. For reference, port locations are shown on page 6-1.

●Port 0 is always RS-232 .

●Port 1 is RS-232or DSU, depending on whether the optional CSU/DSU card is installed.

●Ports 2 and 3 are determined by the attached cables: RS-232,V.35, or RS-449.

Blocked Port Flag

will cause the port to be enabled (N) or disabled (Y) at node IPL. The port will remain in that state until this parameter is changed or an on-line enable ([B], [B], [C] from the Main Menu) or disable ([B], [B], [A] from the Main Menu) is performed.

X.3 Line Speed

is the data transmission rate in bits per second. Specify the line speed that matches (as closely as possible) the configuration of the device connected to the port.

Selecting this item displays a list of valid line speeds. To specify a speed, press the letter corresponding to the speeds. Valid speeds are:

50

75

75/1200

100

110

134.5

150

200

300

600

1200

1840

2400

4800

9600

19.2K

38.4K

57.6K

Autobaud

 

Selecting Autobaud causes the line speed to be read from the first trans- mission from the async device, then set automatically.

12-10

SmartSwitch 1800 4. 0 User Guide, Rev 01

Page 187 Page 189
Page 188
Image 188
Cabletron Systems 1800 manual Async Port Parameters
Page 187 Page 189

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.
Top Page Image Contents