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Essentials of AV Technology Networking for Data and AV

Essentials of AV Technology Networking for Data and AV. Network Essentials. Defining a Network Network Connections OSI Reference Model Network Interfaces Internet Protocol Network Addressing Network Components Networking Conclusion Networking for Data and AV Activities.

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Essentials of AV Technology Networking for Data and AV

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  1. Essentials of AV TechnologyNetworking for Data and AV

  2. Network Essentials • Defining a Network • Network Connections • OSI Reference Model • Network Interfaces • Internet Protocol • Network Addressing • Network Components • Networking Conclusion • Networking for Data and AV Activities

  3. What is a Network • A group of devices connected in a manner that allows communication between the devices • LAN • WAN • WLAN

  4. Star, Bus, and Ring Topology Star: Connected to a central point Bus: Connected through a single cable Ring: Connected in a continuous loop

  5. Standards • Common platform for understanding and teamwork • Standards organizations • ANSI • IEEE • ISO • Ethernet standard IEEE802 (802.x.x)

  6. Ethernet Cabling • Cable Categories determine speed of wired network connections • Category 5, 5e, 6, 6a

  7. Ethernet Connections • Cabling must be connected to the device by attaching some type of connector. • 8P8C • T568A/B

  8. Wireless Connections: Wi-Fi • 802.11 standard • Access points (RF) • Distance limitations

  9. 802.11 Specifications

  10. Wireless Connections: Bluetooth • Low cost • Short range (10 m) • Point to point connections • Built in encryption • WPAN

  11. Fiber Optic Connections • Single and multi mode • Bandwidth (up to 40Gbps /sec) • SC and ST connectors Single Mode Multi Mode

  12. OSI Refence Model • Seven layer international standard process • Allows for product developments

  13. OSI and AV

  14. Network Interface Card (NIC) • Connection between device and network • MAC is hardware address for the NIC • 00:13:CE:D5:1C:21

  15. MAC Address • MAC is hardware address for the NIC • uses a 48-bit number, such as: 00:13:CE:D5:1C:21 • first part indicates the manufacturer • second part is a serial number • MAC address is one of the lowest levels of communication on a network Notice the MAC address on the NIC. MAC is hardware address for the NIC

  16. Internet Protocol (IP) Addressing • IP Addresses define the device and its location on a network

  17. Internet Protocol Version 4 (IPv4) • Made of four, eight bit "chunks" called octets • Example: 192.168.1.25

  18. Internet Protocol Version 6 (IPv6) • Uses eight groups of four hexadecimal numbers • Looks like FEDC:BA98:7654:3210:FEDC:BA98:7654:3210 • Can use the MAC address within its numbering scheme

  19. Subnet Mask Indicates how many devices can be on a network.

  20. Static IP Addressing • Manually assigned IP address • Method of assignment varies • For devices requiring permanent addresses

  21. Dynamic IP Addressing • Automated process • Server leases temporary address (DHCP) • Based on pool of allowable addresses

  22. Domain Name System • Keeps track of all equipment on the network • Allows assignment of text names to equipment • Allows administrators to assign text names to equipment so its easier for people to manage resources.

  23. Network Switch • Collects MAC addresses and stores them in Memory • Hubs can't do this • Managed and unmanaged devices for a single network

  24. Network Routers, Gateways, and Bridges • Router • has switch features • can connect multiple networks together • Gateways • pass traffic to routers • routers look to the gateway to find names (DNS addresses) that are not found on the local network. • Bridges • connects two different types of networks together • translates one network protocol to another protocol

  25. Networking Summary • Networks are now a major part of AV • It wants to keep those networks secure • Dedicated devices and standardization make worldwide communication possible

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