Networking and Telecommunications

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Networking and Telecommunications

• 16. The Network Life Cycle
• Lan Install and Management

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Initial Steps

• Survey user needs (hardware and software),
  communicate
• Survey present setup (hardware, software, wiring,
  buildings)
• Cost analysis, initial reports (feasibility
  studies)
• Make presentations and gather support/funding

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Choosing a Lan/Wan

• Topology, Ethernet vs. Token Ring, Costs, Size
• Cable, hardware, NOS, applications/services
• Internet connections?

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Installation

• Logs and diagrams of all cables and hardware
• List of all software installed, license metering
• Cable backbone critical, plan for future, be
  careful with install
• Test all connections/wires after install
• Install cables, and hardware (servers, clients,
  printers, routers, Hubs, switches, ups,
  repeaters, external disks, tape backup systems..)
• Install NOS, software applications and client
  operating systems
• Test, test, test

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Managing a Network

• Number of lan administrators (full/part-time)
• Document, document, document
• Tape backups (daily, weekly, archive, offsite)
• Install/upgrade hardware over time
• Install/upgrade NOS and other applications
• Test, test, test

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Managing a Network (cont.)

• Network management tools
• hubs, switches, printers and other net devices
• no management
• management via dumb terminal directly connected
• telnet/login management
• snmp software (hp openview)
• web interface management tools
• Communication (with users, within department)
• Keep eye on security

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Testing and Problem Solving

• Cable testers and other hardware test equipment
• Software testers, lan sniffers, network analyzers
• Traffic history, automatic alarms, monitoring
  consoles
• Warranties, maintenance contracts

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Reliability

• Frequent backups, offsite storage of backups
• UPS
• Disk mirroring, disk duplexing, raid
• Redundant hardware (servers) and software
  (Redundancy)
• Staff Redundancy (backup staff) and training

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Disaster Recovery

• Fire, riot, war, floods
• Disaster recovery plans
• Offsite (tapes, manuals, hardware/software)
• Other recovery sites (other divisions, dark
  sites, 3rd party sites (sunguard))

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• THE END!!