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  • ERASMUS IP Summer Course 2009: WiCoNet IP Networking Page 1

    IKS

    ERASMUS IP: WiCoNet IP Networking

    IP NetworkingDipl.-Ing. Peter Schrotter

    Institute of Communication Networks and Satellite Communications

    Graz University of Technology, Austria

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    ERASMUS IP: WiCoNet IP Networking

    Overview

    Fundamentals of IP Networking

    Communicating over the Network

    Application Layer Functionality and Protocols

    OSI Transport Layer

    OSI Network Layer

    Addressing the Network (IPv4)

    OSI Data Link Layer

    OSI Physical Layer

    Ethernet

    Planning and Cabling Networks

    Configuring and Testing the Network

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    ERASMUS IP: WiCoNet IP Networking

    IP Networking - Part 1

    Fundamentals of IP NetworkingFundamentals of IP Networking

    Communicating over the Network

    Application Layer Functionality and Protocols

    OSI Transport Layer

    OSI Network Layer

    Addressing the Network (IPv4)

    OSI Data Link Layer

    OSI Physical Layer

    Ethernet

    Planning and Cabling Networks

    Configuring and Testing the Network

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    ERASMUS IP: WiCoNet IP Networking

    Networks Impact Daily Life

    Instantaneous communication supports and improves

    our lives.

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    ERASMUS IP: WiCoNet IP Networking

    How Networks Impact Daily Life

    Popular communication media such as IM, Wikis,

    Blogs, Podcasting, and Collaboration Tools

    Instant messaging

    Real time communicationbetween 2 or morepeople based on typed text

    Weblogs (Blogs)

    Web pages createdby an individual

    Podcasting

    Website that containsaudio files availablefor downloading

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    ERASMUS IP: WiCoNet IP Networking

    How Networks Impact Daily Life

    Information networks can be used in different ways of

    sharing and collaborating

    Improvement for teaching and learning

  • ERASMUS IP Summer Course 2009: WiCoNet IP Networking Page 2

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    ERASMUS IP: WiCoNet IP Networking

    How Networks Impact Daily Life

    Communication over a network changes the way we

    work

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    ERASMUS IP: WiCoNet IP Networking

    How Networks Impact Daily Life

    Communication over a network supports the way we

    play

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    ERASMUS IP: WiCoNet IP Networking

    Data Networking:Role, Components, and Challenges

    Basic characteristics of communication

    Rules or agreements are 1st established

    Important information may need to be repeated

    Various modes of communication may impact the effectiveness of getting the message across.

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    ERASMUS IP: WiCoNet IP Networking

    Data Networking:Role, Components, and Challenges

    Various elements make up a network

    Devices

    These are used to

    communicate w ith

    one another

    Medium

    This is how the

    devices are con-

    nected together

    Messages

    Information that

    travels over the medium

    Rules

    Governs how messages f low across netw ork

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    ERASMUS IP: WiCoNet IP Networking

    Data Networking:Role, Components, and Challenges

    Converged networks in communications

    A type of network that can carry voice, video & data over the same network

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    Characteristics that are addressed by network

    architecture design

    Fault tolerance

    Scalability

    Quality of service

    Security

  • ERASMUS IP Summer Course 2009: WiCoNet IP Networking Page 3

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    Packet switching helps to improve the resiliency and

    fault tolerance of the Internet architecture

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    Characteristics of the Internet Easy scaling to meet

    user demand

    Hierarchical

    Common standards

    Common protocols

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    Need for Quality of Service Mechanisms to ensure it

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    QoS mechanisms ensure quality of service for

    applications that require it

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    For each type of traffic the appropriate QoS strategy

    has to be chosen

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    Some networks must be secure

  • ERASMUS IP Summer Course 2009: WiCoNet IP Networking Page 4

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    ERASMUS IP: WiCoNet IP Networking

    Network Architecture Characteristics

    Basic measures to secure data networks

    Ensure confidentiality through use of

    User authentication

    Data encryption

    Maintain communication integrity through use of

    Digital signatures

    Ensure availability through use of

    Firewalls

    Redundant networkarchitecture

    Hardware without a singlepoint of failure

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    ERASMUS IP: WiCoNet IP Networking

    IP Networking - Part 2

    Fundamentals of IP Networking

    Communicating over the NetworkCommunicating over the Network

    Application Layer Functionality and Protocols

    OSI Transport Layer

    OSI Network Layer

    Addressing the Network (IPv4)

    OSI Data Link Layer

    OSI Physical Layer

    Ethernet

    Planning and Cabling Networks

    Configuring and Testing the Network

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    ERASMUS IP: WiCoNet IP Networking

    3 common elements of communication

    message source

    the channel

    message destination

    Network definition

    data or information networks capable of carrying many different types of communications

    Network StructureIKS

    ERASMUS IP: WiCoNet IP Networking

    Network Structure

    Data is sent across a network in small chunks called

    segments

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    ERASMUS IP: WiCoNet IP Networking

    Network Structure

    Definition of the components of a network

    Hardware

    Software

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    ERASMUS IP: WiCoNet IP Networking

    End devices are the interface between human network

    and communications network

    Role of end devices:

    client

    server

    bothclientandserver

    Network Structure

  • ERASMUS IP Summer Course 2009: WiCoNet IP Networking Page 5

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    ERASMUS IP: WiCoNet IP Networking

    Role of an intermediary device in a data network is

    different to the role of an end device

    Role of an intermediary device

    provides connectivity and ensures data flows across network

    Network StructureIKS

    ERASMUS IP: WiCoNet IP Networking

    Network Structure

    Network media and criteria for making a network media

    choice

    Network media is the channel over which a message travels

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    ERASMUS IP: WiCoNet IP Networking

    Network Types

    Local Area Networks (LANs)

    A network serving a home, building or campus is considered a Local Area Network (LAN)

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    ERASMUS IP: WiCoNet IP Networking

    Network Types

    Wide Area Networks (WANs)

    LANs separated by geographic distance are connected by a network known as a Wide Area Network (WAN)

    Metropolitan Area Networks (MANs)

    Interconnection of urban LANs, distances betw. LANs & MANs

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    ERASMUS IP: WiCoNet IP Networking

    Network Types

    Internet

    The internet is defined as a global mesh of interconnected networks

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    ERASMUS IP: WiCoNet IP Networking

    Network Types

    Network representations

  • ERASMUS IP Summer Course 2009: WiCoNet IP Networking Page 6

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    Function of Protocolin Network Communication

    The importance of protocols and how they are used to

    facilitate communication over data networks

    A protocol is a set of predetermined rules

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    ERASMUS IP: WiCoNet IP Networking

    Function of Protocolin Network Communication

    Network protocols

    are used to allow devicesto communicatesuccessfully

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    ERASMUS IP: WiCoNet IP Networking

    Protocol suites and industry standards

    A standard is

    a process or protocol that has been endorsed by the networking industry and ratified by a standards organization

    Function of Protocolin Network Communication

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    Interaction of different protocols

    Function of Protocolin Network Communication

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    ERASMUS IP: WiCoNet IP Networking

    Technology independent Protocols

    Many diverse types of devices can communicate using the same sets of protocols

    This is because protocols specify network functionality, not theunderlying technology to support this functionality

    Function of Protocolin Network Communication

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    ERASMUS IP: WiCoNet IP Networking

    Benefits of using a layered model include

    assists inprotocol design

    fosterscompetition

    changes inone layer donot affectother layers

    provides acommonlanguage

    Layers with TCP/IP and OSI Model

  • ERASMUS IP Summer Course 2009: WiCoNet IP Networking Page 7

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    ERASMUS IP: WiCoNet IP Networking

    Layers with TCP/IP and OSI Model

    Describe TCP/IP Mode

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    ERASMUS IP: WiCoNet IP Networking

    Layers with TCP/IP and OSI Model

    The Communication Process

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    ERASMUS IP: WiCoNet IP Networking

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