network connet
- 1. 1 Network +Network + Tom McLaughlin b-admin, mcse, mous, a+, net+ (mct, linux) tom@tomax7.com http://www.tomax7.com
- 2. 2 Networking BenefitsNetworking Benefits Networking Enables: Information Sharing Hardware and Software Sharing Centralized Administration and Support
- 3. 3 Roles of Computers in a NetworkRoles of Computers in a Network Mail ServerMail Server Database ServerDatabase Server DatabaseDatabase Fax ServerFax Server File and Print ServerFile and Print Server Directory ServicesDirectory Services ServerServer Client Computer File and Print Server Database Server Mail Server Fax Server Mail ServerMail Server Database ServerDatabase Server DatabaseDatabase Fax ServerFax Server File and Print ServerFile and Print Server
- 4. 4 Types of NetworksTypes of Networks Peer-to-Peer Client-Server
- 5. 5 Scope of NetworksScope of Networks Local Area Network Wide Area Network
- 10. 10 Hybrid TopologiesHybrid Topologies Star-Bus Bus Star-Ring
- 11. 11 EthernetEthernet CharacteristicsCharacteristicsCharacteristicsCharacteristics DescriptionDescriptionDescriptionDescription Access MethodAccess Method CSMA/CDCSMA/CD Transfer SpeedTransfer Speed Standard Ethernet – 10 Mbps Fast Ethernet – 100 Mbps Gigabit Ethernet – 1 Gbps (1000 Mbps) Standard Ethernet – 10 Mbps Fast Ethernet – 100 Mbps Gigabit Ethernet – 1 Gbps (1000 Mbps) Collision DetectionCarrier Sense Multiple Access Detects signalTransmits signal Collision detected
- 12. 12 Token RingToken Ring CharacteristicsCharacteristicsCharacteristicsCharacteristics DescriptionDescriptionDescriptionDescription Access MethodAccess Method Token passingToken passing Transfer SpeedTransfer Speed 4 to 16 Mbps for all cable types4 to 16 Mbps for all cable types Physical Ring Logical Ring MSAU
- 13. 13 Fiber Distributed DataFiber Distributed Data InterfaceInterface CharacteristicsCharacteristicsCharacteristicsCharacteristics DescriptionDescriptionDescriptionDescription Access MethodAccess Method Token passingToken passing Transfer SpeedTransfer Speed Fiber-optic at 155 Mbps to 622 MbpsFiber-optic at 155 Mbps to 622 Mbps Primary Ring Secondary Ring
- 14. 14 Network CablesNetwork Cables Types of CablesTypes of CablesTypes of CablesTypes of Cables Coaxial ThinNet ThickNet10Base2, 10Base5 Fiber-Optics Twisted-Pair Unshielded (UTP) Shielded (STP)10BaseT
- 15. 15 Wireless CommunicationWireless Communication DevicesDevicesWireless Communication DevicesWireless Communication DevicesWireless Communication DevicesWireless Communication Devices Narrowband Radio Transmission Infrared Transmission
- 16. 16 Repeaters and HubsRepeaters and Hubs Repeater Transmits data to all connected computers Hub Transmits data to all connected computers in a star topology Repeater Hub
- 21. 21 Infrared Data Association (IrDA) Wireless Communication by Using IrDA Windows Client Mouse Laptop
- 22. 22 Open Systems Interconnection (OSI) Reference Model Application LayerApplication LayerApplication LayerApplication Layer Presentation LayerPresentation LayerPresentation LayerPresentation Layer Session LayerSession LayerSession LayerSession Layer Transport LayerTransport LayerTransport LayerTransport Layer Network LayerNetwork LayerNetwork LayerNetwork Layer Data Link LayerData Link LayerData Link LayerData Link Layer Physical LayerPhysical LayerPhysical LayerPhysical Layer
- 23. 23 Types of Data TransmissionsTypes of Data Transmissions BroadcastUnicast Multicast
- 24. 24 IP Address ClassesIP Address Classes ww xx yy zz Class A Network IDNetwork IDNetwork IDNetwork ID Host IDHost ID Class B Network IDNetwork IDNetwork IDNetwork ID Host IDHost ID Class C Network IDNetwork IDNetwork IDNetwork ID Host IDHost ID
- 25. 25 IP AddressesIP Addresses 192.168.1.0192.168.1.0 192.168.3.0192.168.3.0 192.168.1.100192.168.1.100 192.168.2.101192.168.2.101 192.168.2.100192.168.2.100 192.168.3.100192.168.3.100 192.168.2.0192.168.2.0 192.168.1.100192.168.1.100 IP Address Host IDHost ID Network IDNetwork ID
- 26. 26 SubnetsSubnets RouterRouter Subnet 1 Subnet 2 1111 2222 HubHub HubHub
- 27. 27 Addressing GuidelinesAddressing Guidelines The Host ID Cannot Be All ZerosThe Host ID Cannot Be All Zeros The Host ID Cannot Be All 255sThe Host ID Cannot Be All 255s The First Number in the Network ID Cannot Be 127The First Number in the Network ID Cannot Be 127 The Host ID Must Be Unique to the Local Network IDThe Host ID Must Be Unique to the Local Network ID
- 28. 28 CIDR Notation IP Address Subnet Mask Number of Subnet Mask Bits (ones) IP Address in CIDR Notation 255 . 255 . 240 . 0255 . 255 . 240 . 0 11111111 11111111 11110000 0000000011111111 11111111 11110000 00000000 10 . 217 . 123 . 710 . 217 . 123 . 7 00001010 11011001 01111011 0000011100001010 11011001 01111011 00000111 8 + 8 + 4 + 0 = 208 + 8 + 4 + 0 = 20 10.217.123.7/2010.217.123.7/20
- 29. 29 The InternetThe Internet Client Connection Using TCP/IP Protocol Internet Server Text, Audio, Video, and Graphics Data
- 30. 30 Internet ServicesInternet Services Internet Electronic Mail (e-mail) World Wide Web (WWW) Chat Internet News File Transfer Protocol (FTP) Telnet
- 32. 32 Uniform Resource Locator (URL)Uniform Resource Locator (URL) URL (http://example.microsoft.com/tutorial/ default.html) – Protocol used (http://) – DNS address (example.microsoft.com) – Path on the server (/tutorial/default.html) http://example.microsoft.com/tutorial/default.htmlhttp://example.microsoft.com/tutorial/default.html
- 33. 33 Domain NamingDomain Naming Domain Name (example.microsoft.com) – Top-level domain (com) – Second-level domain (microsoft.com) – Subdomain (example.microsoft.com) comcom example.microsoft.comexample.microsoft.com microsoft.commicrosoft.com
- 35. 35 Features of a DomainFeatures of a Domain Single User AccountSingle User AccountSingle LogonSingle Logon Centralized ManagementCentralized Management ScalabilityScalability
- 36. 36 Benefits of a DomainBenefits of a Domain OrganizedOrganized ObjectsObjects ParisParis RepairRepairSalesSales User1User1 Computer1Computer1 Printer1Printer1User2User2 Easy Location ofEasy Location of InformationInformation Streamlined AccessStreamlined Access Delegated AuthorityDelegated Authority
- 37. 37 Internet ProtocolsInternet Protocols Internet HTTP HTTPS FTP SMTP NNTP HTML DHTML Server Data Client Connection Using an Internet Protocol
- 38. 38 TCP/IP LayersTCP/IP Layers Application LayerApplication Layer Transport LayerTransport LayerTransport LayerTransport Layer Internet LayerInternet LayerInternet LayerInternet Layer Network Interface LayerNetwork Interface LayerNetwork Interface LayerNetwork Interface Layer Internet LayerIPIP ICMPICMP IGMPIGMP ARPARP Network Interface Layer EthernetEthernetATMATM Transport LayerUDPUDPTCPTCP Application Layer FTPFTPHTTPHTTP
- 39. 39 Network Address Translators (NATs)Network Address Translators (NATs) Internet 192.168.0.10192.168.0.10 w1.x1.y1.z1w1.x1.y1.z1 w2.x2.y2.z2w2.x2.y2.z2 Web Browser NAT Web Server
- 40. 40 Proxy ServersProxy Servers Internet Proxy Server Authorized Web Site Restricted Web Site LAN LAN LAN