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Presented by Doug Stopper

Technical Vitality Seminar. Network Design II: Building A Solution (A Site Example). Presented by Doug Stopper. Purpose. To build a network solution based on the requirements gathering process (presented last week).

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Presented by Doug Stopper

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  1. Technical Vitality Seminar Network Design II: Building A Solution (A Site Example) Presented by Doug Stopper

  2. Purpose • To build a network solution based on the requirements gathering process (presented last week). • To use the requirements to choose the right technologies and architectures. • To understand that there needs to be an equal balance of cost and performance when building the network architecture

  3. A Site Example • To use the LM Owego site as an example network architecture. • Parameters • Large Scale LAN upgrade • Focus on emerging technologies • Support a 5000 Node network • Provide an acceptable level of performance • Stay within cost restraints

  4. Things to Consider for the Design • Rapid Evolution of Network and Computing technology • Must remain Competitive/Productive • Need support for 5000+ nodes • Desktop technology requires higher bandwidth requirements (IPTv, Streaming Web Technologies, Email w/ attachments, Backups, etc…..

  5. Defining Requirements for LM Owego • What is the geographical coverage needed? • Local Area Network: Span one or more buildings on the campus • Approximately 45 wiring closets (LAN rooms) spread over 15 buildings • Closets Vary per building (1-9 closets)

  6. Defining Requirements for LM Owego • What is the type of traffic? • Voice • Separate Infrastructure – Stable for now • Data • All types: Mission critical, normal, non-critical • Video • IPTV based only, and Streaming Video on Network • IPTV system is tuned for LAN based traffic

  7. Defining Requirements for LM Owego • How many nodes on your network? • Need support for a minimum of 4000 nodes • Needs to be scalable to support more nodes in the future • In the form of Users & Servers

  8. Defining Requirements for LM Owego • How Many Servers need to be supported? • Servers require higher bandwidth, reliability, and redundancy • Approximately 95 Unix Servers (AFS, CAD, etc…) • Approximately 35 Intel Servers (Print Servers, File Servers, Exchange Servers) • Several OS/2 Servers (Legacy Server Environment) • Equates to High Traffic Requirements

  9. Defining Requirements for LM Owego • What facility limitations are present? • Can the walls be fitted with cables • Are there LAN rooms • Is there a backbone to a centralized area • Already an existing cable infrastructure (Token- Ring cable) • Use this existing infrastructure – can support up to 100 Mbps within distance limitations

  10. Defining Requirements for LM Owego • Can the walls be fitted with cables • Are there LAN rooms • Is there a backbone to a centralized area • LAN closets Exist • Core area Exists (just the space) • No Network Mgmnt. Area. – Needs to be created • Already an older type fiber backbone from closet to core • Older technology, Fiber Paths not labeled/documented well

  11. Defining Requirements for LM Owego • What is the term of the network? • For how long will it be in place? • Permanent configuration • No foreseeable termination of network services • Must be scalable to more nodes and newer technologies

  12. Defining Requirements for LM Owego • How secure does the network need to be? • Need a high level of network security • Firewalls (protect intranet) • Authentication servers (verify users) • Intrusion detection (prevent network penetration) • Virtual Private Networks (secure remote users)

  13. Defining Requirements for LM Owego • What services are needed? • Email Services • Domain Name Service (DNS) • IP Address management (DHCP) • LAN resource services • Backup Services • Unix Services (AFS, MCAD, etc…) • Printer Services

  14. Defining Requirements for LM Owego • What LAN access methods are available in the geographic region? • Current – Token Ring • Problems – Insufficient Bandwidth, legacy technology, more expensive • Solution – Switched Ethernet, 10/100 access • dedicated bandwidth to desktop • reasonable $$ to implement technology • Standardized and supported

  15. Defining Requirements for LM Owego • What are the cost restraints? • Must fit the budget to supply the following: • Fit-up for all PC’s Network Interface Cards • LAN Closet Switches • Any new supporting fiber backbone needed • Any other New Cabling • Core Equipment • Network Management equipment • Power backup systems • Labor – Install, configure Test • Maintenance on equipment • Any other recurring costs

  16. Approaching a Network Design • Examine all gathered statistics • Previous Slides • Educate yourself on traffic requirements • Choose the networking technologies that will best suit your needs • IP, Ethernet, ATM, MM Fiber, Cat V cable, etc…

  17. Review the LAN Architecture • Switched Ethernet Environment to Desktop • Each user has a DEDICATED 10Mbps link • New NICS/Cables/Closet Switches • Switches Scalable to 100Mbps • Switches Scalable to more users • Switches Scalable to new technologies • New ATM fiber Backbone • New Campus Fiber Backbone Installed • Runs from every LAN closet to the 101a raised floor • LAN Switch-to-Core access method ATM (OC3-155Mbps)

  18. The LAN Architecture • New Network Core (101a - Raised Floor) • Routers and ATM switching equipment • Completely fiber switched environment • Scalable to more traffic / LAN rooms • Fiber Patch termination Area • Rack System • Development area (1 of each device)

  19. The LAN Architecture • New Network Operations Center • house all management operations • Network Management Software (HP OPENVIEW) • Sniffer Software (to closely examine traffic problems) • DHCP Server – Hand out IP Addresses • Other Various monitoring tools and systems • Measure utilization, configurations, inventory, etc…

  20. Pricing the LAN Architecture • Telecom Project Cost Evaluation • Total Purchase Cost: For all HW and SW (only a fraction of the total cost) • Labor Costs: To Plan, Install, and Maintain (Outweigh product purchase cost)

  21. Pricing the LAN Architecture • Telecom Project Cost Evaluation • If the costs meet the budget IMPLENENT!!!

  22. Pricing the LAN Architecture • Telecom Project Cost Evaluation • If the costs don’t meet the budget: • Determine where to make cuts • Network Management • Cabling Infrastructure • Security • Brand Names • Outsource or not – for implementing • Re-evaluate, and make decisions

  23. Solutions - Wiring Closets

  24. Solutions - Network Core See Netscape

  25. Solutions - Network Core(Setup Table & Fiber Patches)

  26. Solutions - Network Operations Center

  27. The Future of the LMFS Network • Scalable to new networking technologies • Scalable to new business applications • Scalable to more users • Extended management capabilities • Remain competitive in the IT arena • Maintain high productivity

  28. Thank You

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