Home Networks
ICS-100
Dale Gibler
Why build a network?
Why build a network system.
Share data Share files Share applications Communicate Share internet connection Share peripherals It’s just cool!
Getting started:
Requirements list Model: Logical and physical Network topology to use Hardware Protocols Operating system Applications
Requirements:
What will this network be used for? How many users? What devices will be used? Bandwidth allocation. Management and monitoring. Speed. Cost: Budget
Modeling: Logical network diagram
Internet
Router
Research Computer Administration Computer
Netware Server Network shared printerShared using Netware
Monday, November 17, 2003
Logical Network Design
1. Applications:Office XP Pro
Research tracking softwareInternet ExplorerOutlook
2. Local Resources:Dot metrix printer for recording
research3. Network resources:
Login to server, use of server based tracking applications4. Security:
User Account Login5. OS
Microsoft Windows XP Pro6. Quantity
Number of PCs - 3
1. Applications:Office XP Pro
Scheduling softwareInternet ExplorerOutlook
2. Local Resources:Dot metrix printer for recording
data and information3. Network resources:
Login alllowed at server, access to discretionary disk space access.4. Security:
User Account Login Administrator can log in5. OS
Microsoft Windows XP Pro6. Quantity
Number of PCs - 8
1. Applications:File Services
Print Services Directory Services
2. Local Resources:Disk space
3. Network resources:This console is limited to
administrators Users have varying security levels per user.4. Security:
User Account Login5. OS
Novel Internetware 5.226. Quantity: 1 Server
Modeling: Physical network diagram
Internet
Sever 2
Sever 1
RouterSwitch (each port is a seperate segment in this network)
Shared media Hub 1(segment 1)
Shared media Hub 2(segment 2)
Dale
Pete
RobiSandy
Jenny
Uses dedicatedswitch port
Uses dedicatedswitch port
Uses dedicatedswitch port Uses dedicated
switch port
Uses dedicatedswitch port
Uses dedicatedswitch port
Uses port on sharedhub plugged into switch
Uses dedicatedswitch port
Physical Network Diagram
Firewall
Hardware: What do I need? Computers NIC Cabling (connection) Wireless Router (Special computer that messages when several networks
are connected together) Hub (used to connect segments of a network)
Bridge (interface used to connect the same type of networks) Gateway ( allows communication between dissimilar networks)
Server ?
Connections
Infrared transmission - the transmission of data signals using infrared-light waves
Communications satellites - microwave relay stations in orbit around the earth
Geostationary earth orbat (GEO): 22K miles up and always above the equator.
Medium earth orbat (MEO): 5k to 10k miles up
Low earth orbit (LEO): 400 to 1000 miles up
What protocols should I use?
Protocols: set of rules PPPoE: Point-to-Point Protocol over Ethernet. PPPoE relies on two widely accepted standards: PPP and Ethernet. PPPoE is a specification for connecting the users on an Ethernet to the Internet through a common broadband medium
Protocols continued:
MTU: Maximum Transmission Unit, the largest physical packet size, measured in bytes, that a network can transmit. Any messages larger than the MTU are divided into smaller packets before being sent.
802.3 NAT (Network Address Translation ) TCP and UDP (Transmission Control
Protocol & User Datagram Protocol)
Network OS: what do they do? An operating system that includes special functions for
connecting computers and devices into a local-area network (LAN).
Some operating systems, such as UNIX and the Mac OS, have networking functions built in.
The term network operating system, however, is generally reserved for system software that enhances a basic operating system by adding networking features.
For example, some popular NOS's for DOS and Windows systems include Novell Netware, Artisoft's LANtastic, Microsoft LAN Manager, and Windows NT.
Average Cost of a home network:
$160.00 to $500.00