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Networking Technologies Presentation. Presented by David Fisher June 4, 1999 West Lafayette, IN. What is a network?. A group of computers and other devices that communicate together and share resources (i.e. file storage space and printing services). What devices can I find on a network?.

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networking technologies presentation

Networking Technologies Presentation

Presented by David Fisher

June 4, 1999

West Lafayette, IN

what is a network
What is a network?
  • A group of computers and other devices that communicate together and share resources (i.e. file storage space and printing services).
what devices can i find on a network
What devices can I find on a network?
  • Printers
  • Modems
  • Fax machines
  • Cameras
  • Robots
  • Computers
terms
Terms
  • Mbps - MegaBits per second
  • Nic - Network interface card
  • IP - Internet Protocol
  • TCP/IP - Transmission Control Protocol Internet Protocol
  • Protocol - set of rules for communication for network devices.
what kind of networks exist
What kind of Networks exist?
  • WAN - Wide Area Network. Exists between buildings, states, countries.
  • LAN - Local Area Network. Normally thought of as within a building.
  • MAN - Metropolitan Area Networks
are all networks the same
Are all networks the same?
  • Ethernet - Most popular. 10 Mbps.
  • Fast Ethernet - 100 Mbps
  • AppleTalk - 2 Mbps. Not routed at Purdue.
  • Token Ring - 4 - 16 Mbps. Passes a token.
  • ARCnet - 2.5 Mbps (20 - 100 for ARCnet Plus). It too passes token.
  • FDDI - Fiber Distributed Data Interface - Backbone Stuff
are there other differences
Are there other differences?
  • Server-based networks - client/server
    • Monolithic vs. Distributed
      • Provides centralized administration
      • Push/Pull installations
      • Software metering
      • Standardized security
slide8
Peer-Peer Networks
    • Loosely organized group of computers (workgroups).
      • No centralized administration
      • No big server costs
are there still other differences
Are there still other differences?
  • Topologies - Star, Bus, Ring
  • Wires/Lack of Wires
  • Protocols (IP, IPX, NetBEUI)
topologies star

Thanks to:

James Griffoen

http://www.dcs.uky.edu/~griff/

Topologies - Star

Advantages

Less expensive

More reliable

Disadvantages

Takes more cable

topologies ring

Thanks to:

James Griffoen

http://www.dcs.uky.edu/~griff/ :

Topologies - Ring

Advantages

Equal access - token passing

Disadvantages

One break takes everyone down

topologies bus

David Fisher:

Thanks to:

James Griffoen

http://www.dcs.uky.edu/~griff/

Topologies - Bus

Advantage Relatively inexpensive

Disadvantage One break takes everyone down

media types
Media Types
  • UTP - Unshielded twisted pair
  • STP - Shielded twisted pair
  • Coaxial (thick and thin)
  • Fiber Optic
  • Infrared
  • Radio
  • Microwave
common protocols
Common Protocols
  • TCP/IP - Unique IP needed
  • SLIP/PPP - dial up access
  • IPX/SPX - Novell
  • NetBEUI - Microsoft
  • AppleTalk
  • DLC (Data Link Control) - HP Jetdirect
connectivity devices
Connectivity Devices
  • Repeater - connect network segments
  • Hub - connects nodes (star)
  • Switch - smart hub
  • Bridge - filters/moves data between segments (MAC address)
  • Router - filters/moves data between segments (logical address)
is there a better way to look at this
Is there a better way to look at this?
  • Yes ….

It’s called the Open Systems Interconnect (OSI) Model.

osi model

Thanks to:

www.osilab.ch

OSI Model
osi model further
OSI Model (further)
  • Physical - cables or other media
  • Data Link - data broken into frames, linked to MAC address
  • Network - Adds extra headers to frame, translates between MAC and network address
  • Transport - Assembles packets, checks for errors
slide19
Session - Maintains session between nodes
  • Presentation - Translates data
  • Application - Controls access by apps
network device
Application - Boogie

Presentation unknown

Session - unknown

Transport - proprietary

Network - proprietary

DataLink - unknown

Physical - IR

Network Device?
evaluating the furbish network
Advantages

Runs on AA batteries

IR connection

Limited self-correcting behavior

Disadvantages

Limited battery life

Proprietary interface

Irritating interface

Can’t feed after midnight

Evaluating the Furbish Network
interactive session 1
Interactive Session 1
  • Look at the configuration of your own machine.
    • What protocols are you running?
    • What clients are you running?
    • What kind of network interface card do you have?
    • What’s your IP address?
interactive session 2
Interactive Session 2
  • Exactly how hard is it to install nics?
  • Wanna try to install memory also … it’s not exactly networking, but two hours is a lot to fill and the case is already open …...
how does networking lend itself to restaurants hotels etc
How does networking lend itself to Restaurants, Hotels, etc?
  • Shared Databases
    • Database can be shared and updated with a number of people. OS or NOS provide security and reliability.
    • Web interfaces will revolutionize e-commerce. (BIG plug … data-mining is the future).
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