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1CSNW1 Week 4 Computer Netwerken Slide 2 Computernetwerken n Local Area Network (LAN) n Personal Area Network n Campus Area Network n Metropolitan Area Network n Wide Area Network (WAN) Slide 3 Overlay Networks - the global goal Bron: Jochen Schiller Slide 4 Local Area Network (LAN) Slide 5 LAN Example (library) Bron: Wikipedia Slide 6 Wide Area Network (ARPANET) Bron: Wikipedia Slide 7 Netwerktopologie Bron: Wikipedia Slide 8 Token Ring Slide 9 Netwerkkaart Bron: Wikipedia Slide 10 Transportmedium (COAX en UTP) Coax kabel Unshielded Twisted Pair Bron: Wikipedia Slide 11 differentiele aansturing Elektromagnetische velden Slide 12 Twisted pair (physics) Bron: Wikipedia Bron: www.emcuk.co.uk Balanced signal line EMF cancelling Slide 13 Transportmedium (glasvezel) Bron: www.arcelect.com Slide 14 Single and multimode fiber Bron: Wikipedia Slide 15 OSI Reference Model Open System Interconnection model All People Seem To Need Data Processing Bron: DevCentral Slide 16 Relatie OSI en TCP/IP Transport Layer Network Layer Data Link Layer Physical Layer TCP IP Ethernet protocol Ethernet hardware Layer 4 Layer 3 Layer 2 Layer 1 OSI ModelTCP/IP op Ethernet IEEE 802 definieert standaarden voor computernetwerken ! Slide 17 TCP/IP Model (Wikipedia) Slide 18 IEEE 802 standaarden n IEEE 802.1Bridging (networking) and Network Management n IEEE 802.2Logical link control n IEEE 802.3Ethernet n IEEE 802.4Token bus (disbanded) n IEEE 802.5Defines the MAC layer for a Token Ring n IEEE 802.6Metropolitan Area Networks (disbanded) n IEEE 802.7Broadband LAN using Coaxial Cable (disbanded) n IEEE 802.8Fiber Optic TAG (disbanded) n IEEE 802.9Integrated Services LAN (disbanded) n IEEE 802.10Interoperable LAN Security (disbanded) n IEEE 802.11Wireless LAN & Mesh (Wi-Fi certification) n IEEE 802.12demand priority n IEEE 802.13Cat.6 - 10Gb lan (new founded) n IEEE 802.14Cable modems (disbanded) n IEEE 802.15Wireless PAN n IEEE 802.16Broadband Wireless Access (WiMAX certification) n IEEE 802.17Resilient packet ring n IEEE 802.18Radio Regulatory TAG n IEEE 802.19Coexistence TAG n IEEE 802.20Mobile Broadband Wireless Access n IEEE 802.21Media Independent Handoff n IEEE 802.22Wireless Regional Area Network Slide 19 Koppelingen van netwerken n Repeater n Hub n Switch n Bridge n Gateway n Router Slide 20 Router/Switch and Neighbourhood Analogy Bron: Wikipedia Slide 21 Netwerkkoppeling voorbeeld Application Transport Network Data Link Physical UTP Data Link Physical Application Transport Network Data Link Physical Data Link Physical Network Radio Bron: Jochen Schiller Slide 22 Datagram en virtueel circuit n Datagram (bericht zonder ontvangstbevestiging) n Unicast n Multicast n Broadcast n Virtueel circuit (het lijkt alsof de hosts continue verbonden zijn) Slide 23 Data encapsulation Slide 24 Bronnen n Computer Network (Wikipedia) Computer Network (Wikipedia) n ARPANET (Wikipedia) ARPANET (Wikipedia) n UTP (Wikipedia) UTP (Wikipedia) n Fiber-optic Communication (Wikipedia) Fiber-optic Communication (Wikipedia) n Fibre Optic Cable Tutorial Fibre Optic Cable Tutorial n ISO OSI Model (Wikipedia) ISO OSI Model (Wikipedia) n Jochem Schiller, Mobiele Communicatie, (Pearson) Slide 25 Opdrachten n Bestudeer 15.1, 15.2 n Maak opgaven 15.1 t/m 15.4