For Backup Use Only?

Path Cost

will be added together with all other path costs on a link between bridges. The total will then be compared to other total path costs to determine the least "expensive" end- to-end path.

Priority

prioritizes intra-nodal traffic; the higher the number, the higher the priority. (This pri- ority has no effect on traffic exiting a node.)

Priorities are configured on all logical interfaces that use a physical frame relay port. The device processor in the node uses these priorities to help determine the order in which it will process protocols.

When configuring priorities, be careful to consider the types of traffic being routed on other connections in the node.

Port

identifies the physical port containing the interface.

Make sure the physical frame relay port is not reserved for backup DLCIs (as determined by the

parameter in the port record).

DLCI

matches the connection with an interface at the remote end of the link.

Make sure the DLCI is not part of a frame relay DLCI backup group or frame relay PVC.

Format

is the RFC1490 encapsulation method used for LLC2 traffic.

Avoid configuring parallel Bridge/LLC2 frame relay links between two SmartSwitches if one path is in native LLC2 format and the other in some other format. Since the same interfaces are used for both protocols and the spanning tree will eliminate dual paths for bridged traffic only, a loop can be created, causing a node failure.

Bandwidth Allocation Group

assigns the interface to one of sixteen groups whose parameters regulate bandwidth usage. See "Configuring Bandwidth Allocation Groups" on page 7-6.

Host MAC Address

is the MAC address of the host or workstation to which the remote device needs to connect.

Configuring SNA

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Cabletron Systems 1800 manual Identifies the physical port containing the interface
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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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