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IS 477 BUSINESS DATA COMMUNICATIONS Design 1

IS 477 BUSINESS DATA COMMUNICATIONS Design 1. Overview. Designing a LAN for a small company (<10 people) Needs analysis Technology design Cost assessment. 2x2 Classification Table. APPLICATION. High Traffic. Typical. 100. 100/1000. Typical. USER. High Traffic. 100/1000. ???.

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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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