Chapter 1: Introduction

1.3.6Standards Compatibility

The 6E12X-26 and 6E13X-25 are fully compliant with the IEEE 802.3 standard. The optional Fast Ethernet Interface Modules are fully compliant with the IEEE 802.3u standard. The 6E12X-26 and 6E13X-25 provide IEEE 802.1D Spanning Tree Algorithm (STA) support to enhance the overall reliability of the network and protect against “loop” conditions. The 6E12X-26 and 6E13X-25 support a wide variety of industry standard MIBs including RFC 1213 (MIB II), RFC 1757 (RMON), RFC 1493 (Bridge MIB) and RFC 1354 (FIB MIB). A full suite of Cabletron Systems Enterprise MIBs provide a wide array of statistical information to enhance troubleshooting.

1.3.7LANVIEW Diagnostic LEDs

LANVIEW diagnostic LEDs serve as an important troubleshooting aid by providing an easy way to observe the status of individual ports and overall network operations. Chapter 4 provides details about the 6E12X-26 and 6E13X-25 LANVIEW LEDs.

1.3.8Year 2000 Compliant

The 6E12X-26 and 6E13X-25 have an internal clock that can maintain the current time and date beyond the year 1999.

1.3.9Runtime IP Address Discovery

This feature enables the modules to automatically accept an IP address from a 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 6C105 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 out at an interval of one 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.

1-6

6E122-26, 6E132-25, 6E123-26 and 6E133-25 User’s Guide

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Cabletron Systems 6E122-26, 6E133-25, 6E123-26 manual Standards Compatibility, Lanview Diagnostic LEDs, Year 2000 Compliant

6E122-26, 6E123-26, 6E132-25, 6E133-25 specifications

Cabletron Systems, a prominent name in the networking hardware industry, has produced several notable products that have made significant impacts on network performance and reliability. Among these, the Cabletron Systems 6E133-25, 6E132-25, 6E123-26, and 6E122-26 stand out for their advanced features, versatile applications, and robust technologies.

The Cabletron Systems 6E133-25 is a high-performance modular network switch designed for enterprise environments. It boasts a switching capacity that handles high traffic loads efficiently, facilitating data flow without bottlenecks. With features such as VLAN support and multicast filtering, it allows for more efficient use of network resources. Its ability to support various media types, including fiber and copper, enhances flexibility in deployment scenarios.

The 6E132-25 delivers exceptional performance as a network hub, supporting multiple connection protocols. Its design incorporates redundancy features, ensuring continuous operation in mission-critical applications. One of its standout characteristics is its user-friendly management interface, which simplifies configuration and monitoring tasks, enabling IT administrators to maintain optimal network health with ease.

In contrast, the Cabletron Systems 6E123-26 focuses on providing cost-effective solutions without compromising on quality. It is particularly suitable for smaller networks or branch offices, where budget constraints may limit options. This switch offers essential features including auto-negotiation and automatic port configuration, promoting straightforward setup while preserving performance reliability.

Lastly, the 6E122-26 is engineered for versatility, catering to both small and medium-sized businesses. It supports a range of protocols, ensuring compatibility across various systems. Its robust design incorporates security features that protect against unauthorized access and threats, addressing growing concerns around network vulnerabilities.

Collectively, these products from Cabletron Systems exemplify the company's commitment to innovation in the networking space. They integrate cutting-edge technologies such as QoS (Quality of Service), which prioritizes demanding applications, thereby enhancing user experience and productivity. With their diverse features and scalability, the 6E133-25, 6E132-25, 6E123-26, and 6E122-26 remain relevant in an ever-evolving digital landscape, proving Cabletron Systems' legacy in delivering powerful networking solutions that cater to a variety of organizational needs.