Developing a Computer Network for Your Parish or School

1
Developing a Computer Network for Your Parish or
School
06.01.01
5/13/02
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Lets talk about

• Networking basics
• Network planning issues
• Management and security issues
• Resources

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Networking Basics

• How each PC is networked
• Cabling and network gadgetry
• Networking small and large buildings
• Networking remote sites
• Wireless technology
• Gaining Internet access

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How Each PC is Networked
Computer Room
Desk
PC
Communications Closet
Network Jack
File Server
Network Interface Card (NIC)
Network Interface Card (NIC)
Patch Panel
Patch Cable
Network Cabling
Network Backbone
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Investing in Your Cabling

• Supporting both voice and data
• Components
• Jacks and face plates at desk
• Network cable
• Communications closets
• Patch panels
• Opportunities to start fresh
• Cutting corners

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Network Gadgetry

• Network interface card (NIC)
• Hub - aggregates traffic
• Switch - aggregates and selects path
• Router - interfaces to another network
• Bridge - connects segments

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Networking a Small Building
Desks
Twisted Pair Cable
Patch Panel
Telecommunications Link (e.g., to Internet)
Hub or Switch
Router
File Server
Computer Room
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Networking a Large Building
Patch Panel
Patch Panel
Patch Panel
Hub or Switch
Hub or Switch
Hub or Switch
Communications Closet
Computer Room
Router
Hub or Switch
Network Backbone Using Fiber Optic or Twisted
Pair Cable
Router
Telecommunications Links (e.g., to Internet)
File Server
File Server
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Networking Remote Sites
Main Building
Router
WAP
Router
Network Backbone Via Trench or Overhead
Spread Spectrum Radio Link
Leased or Dial-Up Phone Line
Individual PC
NIC
Router
Campus Building
Hub or Switch
Router
Campus Building
Nearby Building
Distant Building
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Wireless in Your LAN

• Cabling not needed
• NIC now wireless PC card
• Also need wireless access point (WAP)

Desk
Wireless PC Card
Communications Closet
Wireless Access Point
Patch Panel
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Networking Planning Issues

• How will you develop a single network covering
  all your buildings?
• How will you obtain high speed Internet access?
• How will you implement security?
• When and how will you upgrade your phone system?

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Why an Institutional Network?

• Seamless ability to communicate
• Single set of network resources
• Single set of outside links
• Avoids dialing out
• Eases technology support burden

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Internet Access Technologies

• Dial-up Modem 56 kilobits/second (kbs)
• ISDN 128 kbs
• DSL 256 to 640 kbs or more
• T1 or DS1 1.5 megabits/sec (mbs)
• Cable Modem 256 kbs to 1.5 mbs

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Management Issues

• Your Internet Service Provider
• Selecting a Network OS
• MS NT Server or 2000
• Novell Internetware
• Network Naming
• TCP/IP and DHCP
• IPX

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Need a File Server?

• Shared file storage
• Printer sharing and print queuing
• Shared files for data applications
• Issuance of network IDs
• Network faxing
• Web site hosting?

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Security Issues

• Viruses and Virus Checkers
• Hackers and Firewalls
• Filters
• Passwords
• Spam

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Some Special Technologies

• Fax
• Auto Dialing
• Video Conferencing
• E-Learning

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Telephone Technology

• Three Choices
• Internal Switch/PBX
• Separate Lines
• Centrex
• Voice Mail
• Voice over IP (VoIP)

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Some Resources

• Cisco Networking Essentials http//www.cisco.com/w
  arp/public/779/edu/build/network_development/netwo
  rking_essentials/
• A Guide to Networking for K-12 Schools
  http//www.netc.org/network_guide/

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Some Resources

• Consortium for School Networking
  http//www.cosn.org
• NetDay http//www.netday.org
• Wired for Good http//www.wiredforgood.org