Configuring a Logical X.25 Port

expires, the port will be disabled until the next call is placed, if a dial-out port, or the Disconnect Timer expires (see next entry), if a dial-in port.

Disconnect Timer

is the length of time a dial-in port will remain disabled after expiration of the Inactivity Timer.

Line Setup Timer

is started when the port enters Linkup state. If the timer expires before there is a response from the other end, the port will enter Failed state.

To display all logical ports configured on the SmartSwitch 1800, press [A], [D], [E], [A] from the Main Menu. This will display a list of all PVCs and logical ports.

To configure a logical port, press [A], [C], [D] from the Main Menu. When prompted, enter:

●Frame Relay Port. (Default is 0.) This is the physical port on which the logical port will reside. Valid port numbers depend on the model of SmartSwitch

1800—see port locations on page 6-1.

●Logical Port: 8–63 . (Default is 8.)

The display for an existing port will show the configured parameter values, while the display for a new port will contain default database values, shown in the following figure.

N ode Name=node_xyz

Logical Port Parameters (screen 1 of 4)
*	RLP: 0	Port: 0	Logical Port: 8
*	I/O: UN IVER SAL		D atabase
A	Mapped DLCI N umber		16
B	Block ed Port Flag		N
C	Con nection Priority		0
D	Band width Allocation Group		0
E	Encaps ulation Meth od		R FC 1490
F	Modulo		0 Mod ulo 8
G	Maximu m LAPB Win dow Size		7
H	N2 Retran smit C ount		20
I	T1 R etrans mit Period (ms ec)		3000
J	T2 Wait Ack Period (msec)		1000
K	T3 Link A live Period (sec)		5
L	Logical D CE		Y

MX. 25 Logical Port - Screen 2 Op tion :

Figure 8-5 Logical Port Screen 1

[A],[C],[D]from Main Menu

8-12	SmartSwitch 1800 4. 0 User Guide, Rev 01

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.

Cabletron Systems 1800 manual Configuring a Logical X.25 Port, Logical Port Screen

Models: 1800