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Chapter 3: Network Protocols and Communications

  • 3.0 Network Protocols and Communications
    • 3.0.1 Introduction
      • 3.0.1.1 Introduction
      • 3.0.1.2 Class Activity - Designing a Communications System
  • 3.1 Network Protocols and Standards
    • 3.1.1 Protocols
      • 3.1.1.1 Protocols: Rules that Govern Communications
      • 3.1.1.2 Network Protocols
      • 3.1.1.3 Interaction of Protocols
    • 3.1.2 Protocol Suites
      • 3.1.2.1 Protocol Suites and Industry Standards
      • 3.1.2.2 Creation of the Internet and Development of TCP/IP
      • 3.1.2.3 TCP/IP Protocol Suite and Communication Process
      • 3.1.2.4 Activity - Mapping the Protocols of the TCP/IP Suite
    • 3.1.3 Standards Organizations
      • 3.1.3.1 Open Standards
      • 3.1.3.2 ISOC, IAB, and IETF
      • 3.1.3.3 IEEE
      • 3.1.3.4 ISO
      • 3.1.3.5 Other Standards Organizations
      • 3.1.3.6 Lab - Researching Networking Standards
      • 3.1.3.7 Activity - Standards Body Scavenger Hunt
    • 3.1.4 Reference Models
      • 3.1.4.1 The Benefits of Using a Layered Model
      • 3.1.4.2 The OSI Reference Model
      • 3.1.4.3 The TCP/IP Protocol Model
      • 3.1.4.4 Comparing the OSI Model with the TCP/IP Model
      • 3.1.4.5 Activity - Identify Layers and Functions
      • 3.1.4.6 Packet Tracer - Investigating the TCP/IP and OSI Models in Action
  • 3.2 Using Requests for Comments
    • 3.2.1 Why RFCs
      • 3.2.1.1 Request for Comments (RFC)
      • 3.2.1.2 History of RFCs
      • 3.2.1.3 Sample RFC
    • 3.2.2 RFC Processes
      • 3.2.2.1 RFC Process
      • 3.2.2.2 RFC Types
      • 3.2.2.3 Lab - Researching RFCs
  • 3.3 Moving Data in the Network
    • 3.3.1 Data Encapsulation
      • 3.3.1.1 Elements of Communication
      • 3.3.1.2 Communicating the Messages
      • 3.3.1.3 Protocol Data Units (PDUs)
      • 3.3.1.4 Encapsulation
      • 3.3.1.5 De-encapsulation
      • 3.3.1.6 Activity - Identify the PDU Layer
    • 3.3.2 Accessing Local Resources
      • 3.3.2.1 Network Addresses and Data Link addresses
      • 3.3.2.2 Communicating with a Device on the Same Network
      • 3.3.2.3 MAC and IP Addresses
    • 3.3.3 Accessing Remote Resources
      • 3.3.3.1 Default Gateway
      • 3.3.3.2 Communicating with a Device on a Remote Network
      • 3.3.3.3 Packet Tracer - Explore a Network
      • 3.3.3.4 Lab - Using Wireshark to View Network Traffic
  • 3.4 Summary
    • 3.4.1 Summary
      • 3.4.1.1 Class Activity - Guaranteed to Work!
      • 3.4.1.2 Summary
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