NETWORKING

Network is way to communicate between two devices.Devices can be computer,printers,mobiles...
Communication can be done by ether wired or wireless medium
    Wired : Data cables,Ethernet LAN...
    Wireless : Wifi,Bluetooth...


Network Topology
  • Bus Topology
  • Ring Topology
  • Star Topology
  • Mesh Topology
  • Tree Topology

  • Bus Topology:
    If the "backe bone link" goes down entier network goes down.
    Ring Topology:
    All devices are connected in the circle/ring format.
    Star Topology:
    All devices are connected through a control devices as hub/switch.
    Mesh Topology:
    All devices are connected to all other devices.
    Tree Topology :
    Extenstion of bus and star topologies.

    MAC-ADDRESS

    MAC - Media Access Control
    MAC every device on our LAN has a "unique identifier on the data link layer this our mac address.
  • 48 bit address
  • In hexadecimal format
  • First 24 bit are similer for a particular vendor, next 24 bit are assigned by vendor to cilents.
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