Cabletron Systems 3T02-04 manual Appendix B Bridging Methods, Overview

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APPENDIX B

BRIDGING METHODS

B.1 OVERVIEW

Each port of the ATX can be configured for transparent (802.1d) bridging, IBM source routing bridging, or source routing transparent bridging (802.5M). Depending on network topology, it may be desirable to include a mix of these methods within a single ATX.

The choice of bridging methods is determined both by end station requirements and by other internetworking equipment.

Source routing end stations may use any of the three bridging methods. Transparent end stations must use either transparent or SRT bridging. When in doubt, transparent bridging is the easiest to configure and use.

If redundant links are employed along with IBM source routing bridges, then the attached ATX port should be configured for source routing. This will enable the mesh of bridges to derive a spanning tree suitable for spanning tree explorer frames and for multicast packets.

If source routing is desired, and either Ethernet or FDDI is to be used as a backbone between Token Rings, then the Ethernet or FDDI port should be configured for SRT bridging. (SRT over Ethernet is not a standard, but is available for use between multiple ATX chassis in backbone applications. In this case, the “Ethernet” may actually be a microwave or satellite link with an Ethernet-like interface.)

A common mixture of bridging modes may occur when Ethernet segments and Token- Ring segments do not exchange data but share an FDDI backbone. In this case, the Ethernets may be configured for transparent bridging, the Token Rings for source routing, and the FDDI backbone for SRT. (Don't infer from this example that SRT is the sum of transparent and source routing bridging; it is a distinct third method).

The bridging method is dependent on the configuration of the bridge entry and exit ports, and the value of the Routing Indicator (RII) bit in the received frame. The following chart summarizes the interaction between the bridging method.

Token Ring Switch Module User Guide

Page B-1

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Contents Token Ring Switch Module Page Token Ring Switch Module User Guide FCC Notice Cabletron SYSTEMS, INC. Program License Agreement United States Government Restricted Rights Contents Contents Chapter Introduction Document Conventions Getting Help Related ManualsGeneral Description Standards ConnectorsLEDs Chapter Connecting to the Network POWER-UP LED SequenceIntroduction Typical Configurations Connecting the Token Ring Module to a HUBUnshielded Twisted Pair Shielded Twisted Pair Connecting a Token Ring Module to a UTP HubConnecting a Token Ring Module to an STP MAU Chapter Configuring LCM Commands Connecting the LCMSetting the Ring Speed Configuring the Bridging TypeTransparent Source Routing and SRT Bridging MethodSegment Number Translation Options Bridge NumberARP Translation IPX Translation Source Routing ARP TranslationAppleTalk Translation ATX translate 4-6 apple on Configuring Token Ring Switch Module User Guide Displaying Port Status Chapter StatisticsStatistics Displaying Port Status Destination Addresses and Forwarding Outcomes Module StatisticsModule Statistics Statistics Token Ring Switch Module User Guide Chapter Diagnostics and Troubleshooting POWER-UP DiagnosticsPower-up Tests Power-up Results Operational DiagnosticsLoopback Tests Diagnostic Results TroubleshootingIf the Module Fails to Power Up Connectivity Problems Unpacking the Token Ring Switch Module Adding a Token Ring Switch ModuleChapter ADDING/SWAPPING Modules Adding/Swapping Modules Swapping a Module Token Ring Switch Module User Guide TCP/IP IPX Appendix a Technical SpecificationsDB9 for STP RJ45 for UTP Overview Appendix B Bridging MethodsAppendix B Bridging Methods Transparent BridgingFigure B-1 Source Routing Example Source Routing BridgingB-4 Token Ring Switch Module User Guide Source Routing Transparent Bridging B-6 Token Ring Switch Module User Guide ATX IndexIndex Index-2 Token Ring Switch Module User Guide

3T02-04 specifications

Cabletron Systems, a notable name in the networking industry, gained prominence for its pioneering products and innovative technologies. One of its formidable offerings is the Cabletron Systems 3T02-04, an advanced network switching device designed to cater to the evolving demands of high-performance networking environments.

The Cabletron Systems 3T02-04 excels in facilitating seamless data transfer within various network infrastructures. At its core, this device is engineered with key features that enhance its performance and adaptability. With a robust switching architecture, it provides high throughput and low latency, ensuring efficient handling of data traffic. This is particularly crucial for organizations that rely on rapid communication and data exchange for their operations.

One of the defining characteristics of the 3T02-04 is its multi-port configuration, which allows multiple devices to connect simultaneously. This enables the device to support a wide range of applications, from standard office networking to intensive data center operations. Equip with support for various data transmission protocols, including Ethernet, the 3T02-04 is highly versatile, meeting the diverse needs of modern networking tasks.

Additionally, Cabletron Systems incorporated advanced technologies such as Virtual LAN (VLAN) support in the 3T02-04, enhancing network segmentation and improving security measures. This feature allows network administrators to partition the network into different segments, ensuring that sensitive data remains separate and secure from other less critical services.

The 3T02-04 is also notable for its scalability. As organizations grow and their networking requirements evolve, the 3T02-04 can adapt. This scalability is crucial for businesses looking to future-proof their infrastructure investments, allowing them to add bandwidth and enhance connectivity without a complete overhaul of their existing systems.

Moreover, the robustness and reliability of the device ensure that it can withstand the rigors of demanding environments. Its durable design and comprehensive management features enable efficient monitoring and maintenance.

In conclusion, the Cabletron Systems 3T02-04 stands out as a powerful and versatile networking solution that combines cutting-edge technologies, multi-port capabilities, VLAN support, and excellent scalability, making it a valuable asset for any organization aiming to optimize its network infrastructure.
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