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Exploration network chapter5

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The document discusses the network layer and Internet Protocol (IP). It describes the basic role of the network layer in data networks and the characteristics of IP, including being connectionless, unreliable, and media independent. It also covers hierarchical addressing, routing, and packet forwarding between networks and subnetworks using routers and routing tables. Key concepts covered include IP header fields, grouping devices into logical subnetworks, and the use of routes, next hop addresses, and gateways to transport packets across networks.

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OSI Network Layer Network Fundamentals – Chapter 5
Objectives Identify the role of the Network Layer, as it describes communication from one end device to another end device Examine the most common Network Layer protocol, Internet Protocol (IP), and its features for providing connectionless and best-effort service Understand the principles used to guide the division or grouping of devices into networks Understand the hierarchical addressing of devices and how this allows communication between networks Understand the fundamentals of routes, next hop addresses and packet forwarding to a destination network
Network Layer Protocols and Internet Protocol (IP) Define the basic role of the Network Layer in data networks
Network Layer Protocols and Internet Protocol (IP) Identify the basic characteristics and the role of the IPv4 protocol
Network Layer Protocols and Internet Protocol (IP) Describe the implications for the use of the IP protocol as it is connectionless
Network Layer Protocols and Internet Protocol (IP) Describe the implications for the use of the IP protocol as it is considered an unreliable protocol
Network Layer Protocols and Internet Protocol (IP) Describe the implications for the use of the IP as it is media independent
Network Layer Protocols and Internet Protocol (IP) Describe the role of framing in the Transport Layer and explain that segments are encapsulated as packets
Network Layer Protocols and Internet Protocol (IP) Identify the major header fields in the IPv4 protocol and describe each field's role in transporting packets
Grouping Devices into Networks and Hierarchical Addressing List several different reasons for grouping devices into sub-networks and define several terms used to identify the sub-networks
Grouping Devices into Networks and Hierarchical Addressing List several ways in which dividing a large network can increase network performance
Grouping Devices into Networks and Hierarchical Addressing List several ways in which dividing a large network can increase network security
Grouping Devices into Networks and Hierarchical Addressing Explain the communication problems that emerge when very large numbers of devices are included in one large network
Grouping Devices into Networks and Hierarchical Addressing Describe how hierarchical addressing solves the problem of devices communicating across networks of networks
Grouping Devices into Networks and Hierarchical Addressing Describe the purpose of further subdividing networks into smaller networks
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the role of an intermediary gateway device in allowing devices to communicate across sub-divided networks
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Trace the steps of an IP packet as it traverses unchanged via routers from sub network to sub-network
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the role of a gateway and the use of a simple route table in directing packets toward their ultimate destinations
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Define a route and its three key parts
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the purpose and use of the destination network in a route
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the purpose and use of the next hop in a route
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Trace the steps of several IP packets as they are routed through several gateways from devices on one sub network to devices on other sub networks
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the purpose of routing protocols and the need for both static and dynamic routes
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Explain how routes are manually configured to build routing table
Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Explain the role of routing protocols in building the routing table
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Exploration network chapter5

  • 1. OSI Network Layer Network Fundamentals – Chapter 5
  • 2. Objectives Identify the role of the Network Layer, as it describes communication from one end device to another end device Examine the most common Network Layer protocol, Internet Protocol (IP), and its features for providing connectionless and best-effort service Understand the principles used to guide the division or grouping of devices into networks Understand the hierarchical addressing of devices and how this allows communication between networks Understand the fundamentals of routes, next hop addresses and packet forwarding to a destination network
  • 3. Network Layer Protocols and Internet Protocol (IP) Define the basic role of the Network Layer in data networks
  • 4. Network Layer Protocols and Internet Protocol (IP) Identify the basic characteristics and the role of the IPv4 protocol
  • 5. Network Layer Protocols and Internet Protocol (IP) Describe the implications for the use of the IP protocol as it is connectionless
  • 6. Network Layer Protocols and Internet Protocol (IP) Describe the implications for the use of the IP protocol as it is considered an unreliable protocol
  • 7. Network Layer Protocols and Internet Protocol (IP) Describe the implications for the use of the IP as it is media independent
  • 8. Network Layer Protocols and Internet Protocol (IP) Describe the role of framing in the Transport Layer and explain that segments are encapsulated as packets
  • 9. Network Layer Protocols and Internet Protocol (IP) Identify the major header fields in the IPv4 protocol and describe each field's role in transporting packets
  • 10. Grouping Devices into Networks and Hierarchical Addressing List several different reasons for grouping devices into sub-networks and define several terms used to identify the sub-networks
  • 11. Grouping Devices into Networks and Hierarchical Addressing List several ways in which dividing a large network can increase network performance
  • 12. Grouping Devices into Networks and Hierarchical Addressing List several ways in which dividing a large network can increase network security
  • 13. Grouping Devices into Networks and Hierarchical Addressing Explain the communication problems that emerge when very large numbers of devices are included in one large network
  • 14. Grouping Devices into Networks and Hierarchical Addressing Describe how hierarchical addressing solves the problem of devices communicating across networks of networks
  • 15. Grouping Devices into Networks and Hierarchical Addressing Describe the purpose of further subdividing networks into smaller networks
  • 16. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the role of an intermediary gateway device in allowing devices to communicate across sub-divided networks
  • 17. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Trace the steps of an IP packet as it traverses unchanged via routers from sub network to sub-network
  • 18. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the role of a gateway and the use of a simple route table in directing packets toward their ultimate destinations
  • 19. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Define a route and its three key parts
  • 20. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the purpose and use of the destination network in a route
  • 21. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the purpose and use of the next hop in a route
  • 22. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Trace the steps of several IP packets as they are routed through several gateways from devices on one sub network to devices on other sub networks
  • 23. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Describe the purpose of routing protocols and the need for both static and dynamic routes
  • 24. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Explain how routes are manually configured to build routing table
  • 25. Fundamentals of Routes, Next Hop Addresses and Packet Forwarding Explain the role of routing protocols in building the routing table
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