Cabletron Systems bridges, switches High-End Department

Fast Ethernet

7-6 Fast Ethernet Workgroup Design

This expansion can continue until the stack contains ﬁve devices, the maximum

number allowable with the stackable hub design. At this limitation, the stack will

be capable of supporting up to 110 Fast Ethernet users.

The network, as designed, will look like the depiction shown in Figure 7-2.

Figure 7-2. Fast Ethernet Small Ofﬁce Implementation

High-End Department

As previously seen in the design approach to small ofﬁce implementations of Fast

Ethernet, the design approach and decisions required of high-end departments

using the Fast Ethernet technology do not differ much from those used for normal

Ethernet designs. In the same fashion, the deﬁnition of a Fast Ethernet high-end

department is identical to that of a standard Ethernet high-end department.

The high-end department is a workgroup that has a number of closely associated

stations or users, each having very demanding network needs. These stations

often require the special functions provided by switching: dedicated links, high

throughput, and full-duplex operation.

Stations (40)

Servers (2)

Order Entry

TX

TX

(future)

SEH100TX-22

SEHI100TX-22

2094n22

Contents

Main Page i Notice Notice Page Contents Contents iv Chapter 5 Network Design Chapter 8 Token Ring Chapter 7 Fast Ethernet Chapter 6 Ethernet Appendix A Charts and Tables Page 1-1 Chapter 1 Introduction Using This Guide Cabletron Systems Networking Guide - MMAC-FNB Solutions Document Organization Introduction Document Conventions 1-3 Document Conventions Additional Assistance Warnings and Notications Formats Related Documentation Chapter 2 Review of Networking 2-2 Ethernet Ethernet Fast Ethernet 2-3 Fast Ethernet 2-4 Fast Ethernet Token Ring 2-5 Token Ring 2-6 Token Ring Token Ring 2-7 2-8 Token Ring Page Page Chapter 3 The Workgroup Approach Standalones 3-2 Standalones Standalones, the Original Networking Devices Standalones 3-3 Management of Standalones Limitations of Standalones 3-4 Stackables Stackables physical organization logical organization Stackables 3-5 How Stacks Work HubSTACK Interconnect Cable REAR VIEW SEHI Managing 4 SEH Non-Intelligent Hubs 3-6 Stackables Intelligence in the Stack Internetworking for Stacks Stackables 3-7 Limitations of Stacks 3-8 Stackables 4-1 Chapter 4 PIMs and BRIMs PIM Port Interface Modules Device 4-2 Port Interface Modules EPIM-F2 Port Interface Modules 4-3 4-4 Port Interface Modules Port Interface Modules 4-5 4-6 Port Interface Modules Port Interface Modules 4-7 4-8 Bridge/Router Interface Modules Bridge/Router Interface Modules Types of BRIMs Bridge/Router Interface Modules 4-9 Page 5-1 Chapter 5 Network Design The following chapter discusses some of the more common approaches to workgroup network design. 5-2 The Role of the Workgroup Cabletron Systems Networking Guide - MMAC-FNB Solutions. The Role of the Workgroup Workgroup Establishment Criteria Page The Role of the Workgroup 5-5 Page Page 5-8 The Role of the Workgroup The Role of the Workgroup 5-9 Selecting Workgroup Technologies 5-10 Creating a Manageable Plan Creating a Manageable Plan Logical Layout Creating a Manageable Plan 5-11 5-12 Creating a Manageable Plan Fault Aversion Creating a Manageable Plan 5-13 5-14 Creating a Manageable Plan Network Maps and Record Keeping Network Expandability 5-15 Network Expandability 5-16 The Workgroup as the Network The Workgroup as the Network The Workgroup in the Larger Network The Workgroup in the Larger Network 5-17 What Is a Backbone? Methods of Conguring Backbones 5-18 The Workgroup in the Larger Network Page Page The Workgroup in the Larger Network 5-21 Choosing Backbone Technologies Page Chapter 6 Ethernet 6-2 Ethernet Workgroup Devices Ethernet Workgroup Devices Ethernet Workgroup Devices 6-3 6-4 Ethernet Workgroup Devices Switched Devices Ethernet Workgroup Design 6-5 Ethernet Workgroup Design The Home Ofce 6-6 Ethernet Workgroup Design Ethernet Workgroup Design 6-7 6-8 Ethernet Workgroup Design Ethernet Workgroup Design 6-9 6-10 Ethernet Workgroup Design Ethernet Workgroup Design 6-11 The Small Ofce 6-12 Ethernet Workgroup Design Ethernet Workgroup Design 6-13 6-14 Ethernet Workgroup Design Ethernet Workgroup Design 6-15 6-16 Ethernet Workgroup Design The Remote Ofce Ethernet Workgroup Design 6-17 6-18 Ethernet Workgroup Design Ethernet Workgroup Design 6-19 The High-End Department WAN (56K) 6-20 Ethernet Workgroup Design Ethernet Workgroup Design 6-21 6-22 Ethernet Workgroup Design Ethernet Workgroup Design 6-23 6-24 Ethernet Workgroup Design Permutations 7-1 Chapter 7 Fast Ethernet Fast Ethernet Workgroup Devices 7-2 Fast Ethernet Workgroup Devices Switched Devices Fast Ethernet Workgroup Design 7-3 Fast Ethernet Workgroup Design Small Ofces 7-4 Fast Ethernet Workgroup Design Fast Ethernet Workgroup Design 7-5 7-6 Fast Ethernet Workgroup Design High-End Department Fast Ethernet Workgroup Design 7-7 7-8 Fast Ethernet Workgroup Design Fast Ethernet Workgroup Design 7-9 Fast Ethernet as a Backbone 7-10 Fast Ethernet Workgroup Design Fast Ethernet Workgroup Design 7-11 7-12 Fast Ethernet Workgroup Design 8-1 Chapter 8 Token Ring Token Ring Workgroup Devices 8-2 Token Ring Workgroup Devices Token Ring Workgroup Design 8-3 Token Ring Workgroup Design Small Ofce 8-4 Token Ring Workgroup Design Token Ring Workgroup Design 8-5 8-6 Token Ring Workgroup Design Token Ring Workgroup Design 8-7 Page A-1 Appendix A Charts and Tables Workgroup Design Tables Ethernet A-2 Workgroup Design Tables Fast Ethernet Workgroup Design Tables A-3 Token Ring A-4 Workgroup Design Tables PIMs and BRIMs Workgroup Design Tables A-5 A-6 Workgroup Design Tables Networking Standards and Limitations A-7 Networking Standards and Limitations Ethernet A-8 Networking Standards and Limitations Fast Ethernet Networking Standards and Limitations A-9 Token Ring A-10 Networking Standards and Limitations Networking Standards and Limitations A-11 FDDI Page Glossary Page Page Page Page Page Page Page Page Page Page Page Index-1 Index Numerics A B C H I N P R