●Originated LLC2 Host (Chapter 9), which maps connectivity at the LLC level between the SmartSwitch 1800 and the AS/400. (The SmartSwitch 1800 ini- tiates LLC sessions with the host.) For this example, assume the host number is 0. (It can be 0–128 , but identification can be easier if the host on the LAN side has the same number as the LAN interface number, which is always 0.)

●Terminated LLC2 Host (Chapter 9), whose address must match the frame relay interface to which the 5494 device will transmit. Note that the remote Smart- Switch 1800 must have a corresponding originated LLC2 host. For this example, assume the host number is 2.

●Ethernet LLC2 Interface (Chapter 9), which defines an interface to the Ethernet LAN. For this example, assume the interface number is0. (It can be 0–95 , but as with the hosts, identification can be easier if the interface on the LAN side has the same number as the LAN card number, which is always 0 in a SmartSwitch 1800.)

●Frame relay terminated LLC2 Interface (Chapter 9), which defines an LLC2 ter- mination point at the frame relay interface. Be sure to configure the format as 8025_SRB or 8023_TB (since the AS/400 needs to see the source MAC address, which is not passed in the third format, Native LLC2). For this example, assume the interface number is 0. Note that the remote SmartSwitch 1800 must have a corresponding originated LLC2 Interface.

Interface 0 Ethernet

Local SS1800

Host 0

Host 2

Originated

Terminated

 

 

Interface 2

Frame Relay

Terminated

Figure 3-4 Local SmartSwitch 1800 in Configuration Example 3

Some sample LLC2 parameter values to configure on the local SmartSwitch 1800 are:

●Virtual LAN ID – 007 (hex).

●LLC2 Host 0:

◆Host MAC Address – 4000000000470. This is the AS/400 targeted address. (The 9th and 10th digits of the MAC address make up the host number.)

◆Session Type – Originated. This host will initiate the LLC2 session to the above MAC address.

◆Routing Subscriber ID – 99*. This ID must end in an asterisk and contain all the digits of the Local Subscriber ID (shown later in this list).

◆Source MAC Address Mask – 40000000. This is the source MAC address the SmartSwitch 1800 will use to send frames to the AS/400. The last four digits are 0000 for the first 57 Host SAPs (service access points) used to connect to the host. For subsequent SAPs, the last four digits will be incre- mented to 0001, 0002, etc. (Each Host SAP address must match the Source

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SmartSwitch 1800 4. 0 User Guide, Rev 01

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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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