• LECTURE I Overview of Configuration of Network Devices

    LECTURE I Overview of Configuration of Network Devices

    As with a computer, a router or switch cannot function without an operating system. Cisco calls its operating system the Cisco Internetwork Operating System or Cisco IOS. The Cisco IOS provides the following network services: Basic routing and switching functions Reliable and secure access to networked resources Network scalability

     31 p cit 03/05/2013 83 1

  • Lecture 3: Local Area Networks

    Lecture 3: Local Area Networks

    When computers are connected to a physical medium, there must be a way they can grab the attention of other computers to broadcast the message, "Here comes a frame!" Various technologies have different ways of doing this process, but all frames, regardless of technology, have a beginning signaling sequence of bytes. 10101010…….10101010 Depending up frame format: Preamble = 7 bytes, Start or Start of Frame Delimiter (SFD) = 1 byte 10101011.

     40 p cit 03/05/2013 68 2

  • IP Addresses: Classful Addressing

    IP Addresses: Classful Addressing

    The identifier used in the IP layer of the TCP/IP protocol suite to identify each device connected to the Internet is called the Internet address or IP address. An IP address is a 32-bit address that uniquely and universally defines the connection of a host or a router to the Internet. IP addresses are unique. They are unique in the sense that each address defines one, and only one, connection to the Internet. Two devices on the Internet can...

     120 p cit 03/05/2013 93 2

  • DC & CN II LECTURE I Overview of Configuration of Network Devices

    DC & CN II LECTURE I Overview of Configuration of Network Devices

    As with a computer, a router or switch cannot function without an operating system. Cisco calls its operating system the Cisco Internetwork Operating System or Cisco IOS. The Cisco IOS provides the following network services: Basic routing and switching functions Reliable and secure access to networked resources Network scalability

     31 p cit 28/03/2013 87 1

  • DC & CN II LECTURE 3 Local Area Networks

    DC & CN II LECTURE 3 Local Area Networks

    Preamble or Start Field When computers are connected to a physical medium, there must be a way they can grab the attention of other computers to broadcast the message, "Here comes a frame!" Various technologies have different ways of doing this process, but all frames, regardless of technology, have a beginning signaling sequence of bytes. 10101010…….10101010 Depending up frame format: Preamble = 7 bytes, Start or Start of Frame...

     40 p cit 28/03/2013 69 1

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