Virtual LAN ID, Forwarding Table Size | Cabletron Systems FRX6000

Bridge Conﬁguration

Figure 11-1. Bridge ConÞguration

You can conÞgure the following bridging parameters:

Virtual LAN ID

This ID is only used in an 802.5 Source Route environment and is normally assigned by a system administrator. It is the ID number that is inserted into the Token Ring RIF Þeld representing the internal virtual ring for LLC2 or bridged trafÞc.

Each Virtual LAN ID must be unique among all LAN IDs throughout the network on which this device will operate.

Forwarding Table Size

Under the Spanning Tree concept, bridges automatically maintain forwarding tables by exchanging messages (BPDUs) with other bridges on the network. By using the information in the forwarding tables, bridges determine single paths for trafÞc between endpoints (assuming there are multiple paths.)

This Þeld determines the maximum number of entries allowed in the bridgeÕs forwarding table. The actual number may be limited by available memory. The default value for this parameter is 65535.

Source Route Bridge ID

This ID is only used in a 802.5 Source Route environment. If the outgoing port is conÞgured as a Source Route bridge, it is necessary for the FRX or SmartSwitch 1800 to generate the Routing Information Field (RIF) in forwarded frames. This Bridge ID supplies the Source Route Bridge ID that will be inserted into the RIF.

11-2	Conﬁguring Device-Level Bridging Parameters

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 Virtual LAN ID, Forwarding Table Size, Source Route Bridge ID

Models: 1800 FRX4000 FRX6000