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IS 477 BUSINESS DATA COMMUNICATIONS Design 1

This document outlines the design of a Local Area Network (LAN) tailored for a small company with less than 10 employees, focusing on a travel consultancy. It covers needs analysis, technology design, and cost assessment. The classification of users—owners, travel consultants, and clerical assistants—is provided alongside typical applications such as travel systems and accounting software. Various design options are explored, highlighting the balance between meeting core requirements and budget constraints. Recommendations on network management and cost considerations are included.

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IS 477 BUSINESS DATA COMMUNICATIONS Design 1

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  1. IS 477 BUSINESS DATA COMMUNICATIONS Design 1

  2. Overview • Designing a LAN for a small company (<10 people) • Needs analysis • Technology design • Cost assessment

  3. 2x2 Classification Table APPLICATION High Traffic Typical 100 100/1000 Typical USER High Traffic 100/1000 ???

  4. Classify users (I) • Owner: • 1 person • plays a great deal of golf • rakes in the money • doesn’t do much else • OK, does the accounts (stand-alone) Typical

  5. Classify users (II) • Travel Consultants: • 6 people • mainly working the telephones • some walk-ins • require (online) access to Travel Systems, such as Pegasus, Sabre, etc. Typical

  6. Classify users (III) • Clerical Assistants: • 2 people • does all the paperwork, including faxing, ticket issuing, postage, etc. Typical

  7. Classify applications • Travel Systems • Pegasus, Sabre, etc. • Word Processing • MS Office 2010 • Accounting Software • Quicken High Traffic Typical Typical

  8. Design in threes • Cheapest alternative: • Meets only the core requirements, but cheap • Most likely: • Meets critical requirements close to the stated budget • Gold-plated • Takes advantage of the best of available products

  9. P1 M Typical PC (1.5GHz) Modem P2 H High Traffic PC (2.8GHz) Hub PR SW Switch Printer FS R Router File Server EF Email/Fax Server Nomenclature

  10. Internet (ISP) Design 1-1 Shared Ethernet M P2 1 Assistant FS P1 PR H P2 P1 6 Consultants 1 Assistant Owner

  11. Design 1-2 Internet (ISP) Travel Consultants Management/Clerical P2 FS M PR P1 P2 SW EF P2 SW P2 PR P1 6 Consultants Owner 2 Assistant

  12. Design 1-3 Internet (T1) Travel Consultants Management/Clerical P2 P2 FS EF P2 FS Owner P2 SW R SW P2 PR FO FO 6 Consultants PR PR P2 X2 2 Assistants

  13. Design 1-3-1 Internet (T1) Travel Consultants Management/Clerical P2 P2 P2 FS EF R FS FO Owner P2 SW SW P2 PR FO 6 Consultants PR PR P2 X2 2 Assistants

  14. Decision time! • Which one will work? • Which one works best? • Which is best value for money? • Therefore, which one would you recommend?

  15. Hardware Costs • Typical PC (inc. NICs) • High Traffic PC (inc. NICs) • Hub (10/100 BaseT) • Switch (10/100 Mbps) • Router • Cabling (Cat5e) • WAN/MAN connection (T1, DSL, ISDN, Modem, ISP)

  16. Software Costs • Windows 7 (9-clients) • $3500 • Microsoft Office 2010 (9-clients) • $4500 • Quicken • $500 Who is going to manage the network? $50-60K

  17. Summary • For a small company LAN: • Most traffic will probably be confined to a particular group of users • in this case, the Travel Consultants • Plan to design in threes (most likely, cheapest, gold-plated) • The design chosen will depend on: • budget • availability of space for devices, and, • experience of management to recognize what is needed

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