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Chapter 6 - Local area networks. In this chapter, the following content will be discussed: LAN components, traditional ethernet (IEEE 802.3), switched ethernet, best practice LAN design, improving LAN performance. | Business Data Communications and Networking 8th Edition Jerry Fitzgerald and Alan Dennis John Wiley & Sons, Inc Prof. M. Ulema Manhattan College Computer Information Systems 6 - Copyright 2005 John Wiley & Sons, Inc Chapter 6 Local Area Networks 6 - Copyright 2005 John Wiley & Sons, Inc Outline LAN Components Traditional Ethernet (IEEE 802.3) Switched Ethernet Best Practice LAN design Improving LAN Performance 6 - Copyright 2005 John Wiley & Sons, Inc Why Use a LAN Information sharing Having users access the same files, exchange information via email, or use Internet Ex: single purchase order database accessed by all users on the LAN Results in improved decision making Resource sharing Having hardware devices shared by all users Printers, Internet connections Having software packages shared by all users on a LAN Results in reduced cost 6 - Copyright 2005 John Wiley & Sons, Inc Sharing Software on a LAN Purchase software on a per seat basis Install software on a . | Business Data Communications and Networking 8th Edition Jerry Fitzgerald and Alan Dennis John Wiley & Sons, Inc Prof. M. Ulema Manhattan College Computer Information Systems 6 - Copyright 2005 John Wiley & Sons, Inc Chapter 6 Local Area Networks 6 - Copyright 2005 John Wiley & Sons, Inc Outline LAN Components Traditional Ethernet (IEEE 802.3) Switched Ethernet Best Practice LAN design Improving LAN Performance 6 - Copyright 2005 John Wiley & Sons, Inc Why Use a LAN Information sharing Having users access the same files, exchange information via email, or use Internet Ex: single purchase order database accessed by all users on the LAN Results in improved decision making Resource sharing Having hardware devices shared by all users Printers, Internet connections Having software packages shared by all users on a LAN Results in reduced cost 6 - Copyright 2005 John Wiley & Sons, Inc Sharing Software on a LAN Purchase software on a per seat basis Install software on a server for all to use No need to have a copy on every computer on the LAN Reduces cost Simplifies maintenance and upgrades Example LAN: a 30 client network Purchase only a 10-seat license for a software program (instead of purchasing 20 copies of the same program) Assumes that only 10 users would simultaneously use the software 6 - Copyright 2005 John Wiley & Sons, Inc LAN Metering Used to control the number of copies of a software used on a LAN Typically comes with many software packages used on LANs Keeps track of the users Prohibits using more copies of the package than the licensed number Helps to minimize Copyright violations 40% of SW used in the world is illegal, $13B Loss 6 - Copyright 2005 John Wiley & Sons, Inc Network Types Dedicated server network A server (computer) permanently assigned a specific task Most popular network type 90% of all LANs Peer-to-peer network No dedicated servers used 6 - Copyright 2005 John Wiley & Sons, Inc Dedicated Server Networks .
