Communicating over the Network - Weber State University

Communicating over the Network - Weber State University

Communicating over the Network Network Fundamentals Chapter 2 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Network Structure Define the elements of communication

3 common elements of communication message source the channel message destination

Define a network data or information networks capable of carrying many different types of communications 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2 Network Structure Describe how messages are communicated Data is sent across a network in small chunks called segments

2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3 Network Structure Define the components of a network Network components hardware

software 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4 Network Structure

End Devices and their Role in the Network End devices form interface with human network & communications network Role of end devices: client server

both client and server 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5 Network Structure Identify the role of an intermediary device in a data network and be able to contrast that role with the role of an end device

Role of an intermediary device provides connectivity and ensures data flows across network 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6 Network Structure

Define network media and criteria for making a network media choice Network media this is the channel over which a message travels 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7 Network Types Define Local Area Networks (LANs)

- A network serving a home, building or campus is considered a Local Area Network (LAN) 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8 Network Types Define Wide Area Networks (WANs) - LANs separated by geographic distance are connected by a network known as a Wide Area Network (WAN)

2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9 Network Types Define the Internet The internet is defined as a global mesh of interconnected networks 2007 Cisco Systems, Inc. All rights reserved.

Cisco Public 10 Network Types Describe network representations 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11

Function of Protocol in 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 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12

Function of Protocol in Network Communication Explain network protocols Network protocols are used to allow devices to communicate successfully 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13

Function of Protocol in Network Communication Describe 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 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14

Function of Protocol in Network Communication Define different protocols and how they interact 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15 Function of Protocol in Network Communication

Technology independent Protocols -Many diverse types of devices can communicate using the same sets of protocols. This is because protocols specify network functionality, not the underlying technology to support this functionality. 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16 Layers with TCP/IP and OSI Model

Explain the benefits of using a layered model Benefits include assists in protocol design fosters competition changes in one layer do not affect other layers provides a common language 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17

Layers with TCP/IP and OSI Model Describe TCP/IP Mode 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18 Layers with TCP/IP and OSI Model Describe the Communication Process 2007 Cisco Systems, Inc. All rights reserved.

Cisco Public 19 Layers with TCP/IP and OSI Model Explain protocol data units (PDU) and encapsulation 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20

Layers with TCP/IP and OSI Model Describe the process of sending and receiving messages 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21 Layers with TCP/IP and OSI Model Explain protocol and

reference models A protocol model provides a model that closely matches the structure of a particular protocol suite. A reference model provides a common reference for maintaining consistency within all types of network protocols and services.

2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22 Layers with TCP/IP and OSI Model Define OSI 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

23 Layers with TCP/IP and OSI Model Compare OSI and TCP/IP model 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24 Addressing and Naming Schemes Explain how labels in encapsulation headers are used

to manage communication in data networks 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 25 Addressing and Naming Schemes Describe examples of Ethernet MAC Addresses, IP Addresses, and TCP/UDP Port numbers 2007 Cisco Systems, Inc. All rights reserved.

Cisco Public 26 Addressing and Naming Schemes Explain how labels in encapsulation headers are used to manage communication in data networks 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

27 Addressing and Naming Schemes Describe how information in the encapsulation header is used to identify the source and destination processes for data communication 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 28

2007 Cisco Systems, Inc. All rights reserved. Cisco Public 29

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