NetBIOS Hops

is the maximum number of hops allowed for routing a Novell-encapsulated NetBIOS frame. (Each router in a packet's path to the destination network is one hop.) Frames exceeding this value will be discarded.

Periodic RIP Enabled

determines whether the node will originate periodic IPX Routing Information Pro- tocol (RIP) messages from this interface (assuming RIP is enabled), to inform the network that the route through this interface is viable.

Periodic RIP Timer

is the interval between the periodic IPX RIP broadcasts from this interface.

Periodic SAP Enabled

determines whether the node will originate periodic IPX Service Advertising Protocol (SAP) messages from this interface (assuming SAP is enabled), to inform the network which SAP entries in the routing table are viable.

Periodic SAP Timer

is the interval between the periodic IPX SAP broadcasts from this interface.

RIP Enabled

determines whether this interface will support RIP processing.

RIP Age Timer

is used to delete route entries in the routing information table (assuming RIP is enabled). The timer starts/restarts each time an entry is created/updated by RIP or ref- erenced for forwarding. If the timer expires, the router will assume that the entry is no longer valid (due to hardware failure, power outage, etc.), and the entry will be deleted from the table.

RIP Maximum Size

is the maximum possible RIP packet size, including the IPX header (30 bytes) and the LAN MAC header (if transmitted on a LAN interface).

SAP Enabled

determines whether this interface will support SAP processing.

SAP Age Timer

is used to delete route entries in the server information table (assuming SAP is enabled). The timer starts/restarts each time an entry is created/updated by SAP or ref- erenced for forwarding. If the timer expires, the router will assume that the entry is no longer valid (due to hardware failure, power outage, etc.), and the entry will be deleted from the table. SAP will then send a broadcast message indicating that the server is down.

Transport Time

is the time (in 55-millisecond units) that it will normally take to forward frames out the interface. Recommended values are 1 for LAN interfaces and 30 for WAN inter- faces.

This time is used to calculate the least-cost path during routing. If IPXWAN Enabled (described later) is Y, Transport Time will be overridden by the value calculated by

IPXWAN.

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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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