Configuring a Physical X.25 Port

Before configuring a logical X.25 port, make sure these are properly configured:

●Protocol(s) (Chapter 5) that will be transmitted over the logical port.

●Physical frame relay port (Chapter 7) on which the logical port will reside.

Once the necessary Node (Chapter 4) and Protocol (Chapter 5) parameters have been configured, press [A] at the Port Configuration Menu (or [A], [C], [A] from the Main Menu. When prompted, enter a port number (or press [Enter] to accept the default of 0). Valid port numbers depend on the model of SmartSwitch 1800—see port locations on page 6-1.

The display for an existing port will show the configured parameter values, while the display for a new port will show default database values (listed in Table 8-1on page 8-6). The following figure is an example of an existing port.

			N ode Name=n odexyz
X .25 Port Parameters (screen 1 of 6)
*	Port: 5	Link State:	Linku p
*	I/O: U NIV ERSA L
		Datab ase	Sys tem Memory
A	Port Type	X25	X25
B	Ph ysical Port I nterface	V. 35	V. 35
C	Blocked Port Flag	N	N
D	Lin e Sp eed	64k bp s	64k bp s
E	Mod ulo	0 Modulo 8	0 Modulo 8
F	Maximum LAPB Wind ow Size	7	7
G	N2 Retran smit Cou nt	20	20
H	T1 R etrans mit Period (ms ec)	2000	2000
I	T2 Wait A ck Period (msec)	1000	1000
J	T3 Link Alive Period (s ec)	10	10
K	Logical D CE	Y	Y
L	Generate Clock	Y	Y
M	Rcv C lock (TT) from D TE	N	N

NX. 25 Level 3 - Screen 2 Option:

Figure 8-1 X.25 Port Screen 1

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

If Physical Port Interface (item B) is DSU, item L will be CSU/DSU Operating

Mode, and item M will be RTS Control.

After making any changes, be sure to press [F 7] to update the system memory. Otherwise, the changes will not take effect until the next re-boot of the SmartSwitch 1800.

Pressing [N] at the screen in Figure 8-1will display a second screen, and pressing [N] at the second screen will display a third screen. The parameters on all three screens are listed in Table 8-1(on page 8-6).

8-2	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 Physical X.25 Port, X.25 Port Screen

Models: 1800