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1© 2004, Cisco Systems, Inc. All rights reserved.
CCNA 1 v3.1 Module 2 Networking Fundamentals
222© 2004, Cisco Systems, Inc. All rights reserved.
Purpose of This PowerPoint
• This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.1.
• It was created to give instructors a PowerPoint to take and modify as their own.
• This PowerPoint is:NOT a study guide for the module final assessment.NOT a study guide for the CCNA certification exam.
• Please report any mistakes you find in this PowerPoint by using the Academy Connection Help link.
333© 2004, Cisco Systems, Inc. All rights reserved.
To Locate Instructional Resource Materials on Academy Connection:
• Go to the Community FTP Center to locate materials created by the instructor community
• Go to the Tools section• Go to the Alpha Preview section• Go to the Community link under Resources• See the resources available on the Class home page for
classes you are offering• Search http://www.cisco.com • Contact your parent academy!
444© 2004, Cisco Systems, Inc. All rights reserved.
Objectives
555© 2004, Cisco Systems, Inc. All rights reserved.
Data Networks
666© 2004, Cisco Systems, Inc. All rights reserved.
Network History
777© 2004, Cisco Systems, Inc. All rights reserved.
Network History continued
888© 2004, Cisco Systems, Inc. All rights reserved.
Networking Devices
999© 2004, Cisco Systems, Inc. All rights reserved.
Network Topology
101010© 2004, Cisco Systems, Inc. All rights reserved.
Network Protocols
111111© 2004, Cisco Systems, Inc. All rights reserved.
Local-area Networks (LANs)
121212© 2004, Cisco Systems, Inc. All rights reserved.
Wide-area Networks (WANs)
131313© 2004, Cisco Systems, Inc. All rights reserved.
Metropolitan-Area Network (MANs)
141414© 2004, Cisco Systems, Inc. All rights reserved.
Storage-Area Networks (SANS)
151515© 2004, Cisco Systems, Inc. All rights reserved.
Virtual Private Networks (VPNs)
161616© 2004, Cisco Systems, Inc. All rights reserved.
Benefits of VPNs
171717© 2004, Cisco Systems, Inc. All rights reserved.
Intranet and Extranet VPN
181818© 2004, Cisco Systems, Inc. All rights reserved.
Importance of Bandwidth
191919© 2004, Cisco Systems, Inc. All rights reserved.
Bandwidth Pipe Analogy
202020© 2004, Cisco Systems, Inc. All rights reserved.
Bandwidth Highway Analogy
212121© 2004, Cisco Systems, Inc. All rights reserved.
Bandwidth Measurements
222222© 2004, Cisco Systems, Inc. All rights reserved.
Bandwidth Limitations
232323© 2004, Cisco Systems, Inc. All rights reserved.
Bandwidth Throughput
242424© 2004, Cisco Systems, Inc. All rights reserved.
Digital Transfer Calculation
252525© 2004, Cisco Systems, Inc. All rights reserved.
Digital versus Analog
262626© 2004, Cisco Systems, Inc. All rights reserved.
Using Layers to Analyze Problems
272727© 2004, Cisco Systems, Inc. All rights reserved.
Using Layers to Describe Data Communication
282828© 2004, Cisco Systems, Inc. All rights reserved.
OSI Model
292929© 2004, Cisco Systems, Inc. All rights reserved.
OSI Layers
303030© 2004, Cisco Systems, Inc. All rights reserved.
OSI Layers
•Provides connectivity and path selection between two host
•Provides Logical address
•No error correction, best effort delivery.
313131© 2004, Cisco Systems, Inc. All rights reserved.
OSI Layers
323232© 2004, Cisco Systems, Inc. All rights reserved.
OSI Layers
333333© 2004, Cisco Systems, Inc. All rights reserved.
OSI Layers
343434© 2004, Cisco Systems, Inc. All rights reserved.
OSI Layers
353535© 2004, Cisco Systems, Inc. All rights reserved.
OSI Layers
363636© 2004, Cisco Systems, Inc. All rights reserved.
Peer-to-Peer Communication
373737© 2004, Cisco Systems, Inc. All rights reserved.
TCP/IP Model
383838© 2004, Cisco Systems, Inc. All rights reserved.
Encapsulation
393939© 2004, Cisco Systems, Inc. All rights reserved.
Names for Data at Each Layer
404040© 2004, Cisco Systems, Inc. All rights reserved.
Summary