Cabletron Systems 9F120-08, 9F122-12, 9F125-0 manual Duplex Mode

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Introduction

Duplex Mode

Through Local Management, each port on the 9E531-24 can be configured to support either full or half duplex mode of operation.

Runtime IP Address Discovery

This feature enables the modules to automatically accept an IP address from a Boot Strap Protocol (BootP) server on the network into NVRAM without requiring a user to enter an IP address through Local Management.

When the modules are connected to the network and powered up, Runtime IP Address Discovery (RAD) checks the modules for an IP address. If one has not yet been assigned (module and SmartSwitch 9000 chassis IP address set to 0.0.0.0), RAD checks to see if any of the module interfaces have a link. If so, RAD sends out Reverse Address Resolution Protocol (RARP) and BootP requests to obtain an IP address from a RARP or BootP server on the network.

The RAD requests start at an interval of one per second. The interval then doubles after every transmission until an interval of 300 seconds is reached. At this point, the interval remains at 300 seconds. The RAD requests continue until an IP address is received from a RARP or BootP server, or an IP address is entered using Local Management.

SmartTrunk

SmartTrunk, also referred to as SmartTrunking, is Cabletron Systems’ terminology for load balancing or load sharing. SmartTrunk technology provides an easy-to-implement mechanism to group, or aggregate, multiple links of any technology together to scale the backbone bandwidth beyond the limitations of a single link. All links are user-configurable so administrators can scale the backbone bandwidth by adding SmartTrunk links. The benefits of SmartTrunking include the following:

•All purchased bandwidth is used.

•Distributed, resilient links increase reliability and performance.

•Multiple technologies are supported within a single trunk for maximum flexibility.

NOTE

For information on SmartTrunk configuration, refer to the SmartTrunk User’s Guide.

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Contents 9033274 Page FCC Notice Cabletron SYSTEMS, INC Program License Agreement Iii Cabletron Systems Limited Program License Agreement Page Page Declaration of Conformity Viii Contents Contents Introduction FeaturesIntroduction Duplex Mode Management 802.1p Port Priority Standards Compatibility Related Manuals Your email address Getting HelpUnpacking the Module User Accessible ComponentsInstalling the SmartSwitch 9000 Module Switch Function Description Using DIP Switch Installing the Module into the SmartSwitch 9000 ChassisInstalling the 9E531-24 Module Reset Switch Cabling Requirements10BASE-FL Network Technical Overview SmartSwitch ArchitectureSystem Management Buses Block DiagramSMB-10 Bus System Diagnostic ControllerDC/DC Converter SMB-1 BusI960 Core INB InterfaceLanview LEDs Functions of the INB transmit LED are listed in Table Color State Lanview LEDs Technical Specifications SpecificationsService Regulatory CompliancePhysical
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9F125-0, 9F122-12, 9F120-08 specifications

Cabletron Systems made significant contributions to the field of networking equipment, particularly with their product line that includes models like the 9F122-12, 9F120-08, and 9F125-08. These devices are renowned within the industry, particularly for their reliability and performance in enterprise networking environments.

The Cabletron 9F122-12 is a versatile networking device that serves as both a hub and a switch. It is designed with 12 Ethernet ports, providing ample connectivity options for various devices within a local area network. This model supports high data throughput, making it suitable for environments with heavy traffic demands. The 9F122-12 employs advanced traffic management capabilities that help optimize network performance.

On the other hand, the Cabletron 9F120-08 model features eight Ethernet ports, designed specifically for smaller networks or as an extension to larger installations. Its plug-and-play design simplifies deployment, allowing users to easily add devices to their networks without extensive configuration. The 9F120-08 offers robust performance and reliability to ensure minimal downtime and is equipped with capabilities that enhance the security of the network.

The Cabletron 9F125-08 is somewhat similar to the 9F120-08, also providing eight Ethernet ports. However, it incorporates additional features that improve its adaptability to various networking environments. This model supports a range of advanced protocols, allowing for integration with legacy systems while providing a pathway for future enhancements. The 9F125-08 is particularly valued for its capacity to handle mixed traffic types, including voice and data, making it an ideal choice for converged networks.

In terms of technology, Cabletron Systems emphasized modularity and scalability in its designs. These devices are built to accommodate future growth and changes in networking requirements. Each of these models supports various networking standards, ensuring compatibility with a wide range of existing infrastructure.

Overall, Cabletron Systems' 9F122-12, 9F120-08, and 9F125-08 are distinguished by their robust features, reliability, and adaptability. They are well-suited for businesses needing dependable networking solutions, and their legacy continues to influence networking technologies to this day.
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