1© 2004, Cisco Systems, Inc. All rights reserved.

CCNA 1 v3.1 Module 2 Networking Fundamentals

222© 2004, Cisco Systems, Inc. All rights reserved.

Objectives

333© 2004, Cisco Systems, Inc. All rights reserved.

Data Networks

444© 2004, Cisco Systems, Inc. All rights reserved.

Network History

555© 2004, Cisco Systems, Inc. All rights reserved.

Network History continued

666© 2004, Cisco Systems, Inc. All rights reserved.

Networking Devices

777© 2004, Cisco Systems, Inc. All rights reserved.

Network Topology

888© 2004, Cisco Systems, Inc. All rights reserved.

Network Protocols

999© 2004, Cisco Systems, Inc. All rights reserved.

Local-area Networks (LANs)

101010© 2004, Cisco Systems, Inc. All rights reserved.

Wide-area Networks (WANs)

111111© 2004, Cisco Systems, Inc. All rights reserved.

Metropolitan-Area Network (MANs)

121212© 2004, Cisco Systems, Inc. All rights reserved.

Storage-Area Networks (SANS)

131313© 2004, Cisco Systems, Inc. All rights reserved.

Virtual Private Networks (VPNs)

141414© 2004, Cisco Systems, Inc. All rights reserved.

Benefits of VPNs

151515© 2004, Cisco Systems, Inc. All rights reserved.

Intranet and Extranet VPN

161616© 2004, Cisco Systems, Inc. All rights reserved.

Importance of Bandwidth

171717© 2004, Cisco Systems, Inc. All rights reserved.

Bandwidth Pipe Analogy

181818© 2004, Cisco Systems, Inc. All rights reserved.

Bandwidth Highway Analogy

191919© 2004, Cisco Systems, Inc. All rights reserved.

Bandwidth Measurements

202020© 2004, Cisco Systems, Inc. All rights reserved.

Bandwidth Limitations

212121© 2004, Cisco Systems, Inc. All rights reserved.

Bandwidth Throughput

222222© 2004, Cisco Systems, Inc. All rights reserved.

Digital Transfer Calculation

232323© 2004, Cisco Systems, Inc. All rights reserved.

Digital versus Analog

242424© 2004, Cisco Systems, Inc. All rights reserved.

Using Layers to Analyze Problems

252525© 2004, Cisco Systems, Inc. All rights reserved.

Using Layers to Describe Data Communication

262626© 2004, Cisco Systems, Inc. All rights reserved.

OSI Model

272727© 2004, Cisco Systems, Inc. All rights reserved.

OSI Layers

282828© 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.

292929© 2004, Cisco Systems, Inc. All rights reserved.

OSI Layers

303030© 2004, Cisco Systems, Inc. All rights reserved.

OSI Layers

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.

Peer-to-Peer Communication

353535© 2004, Cisco Systems, Inc. All rights reserved.

TCP/IP Model

363636© 2004, Cisco Systems, Inc. All rights reserved.

Encapsulation

373737© 2004, Cisco Systems, Inc. All rights reserved.

Names for Data at Each Layer

383838© 2004, Cisco Systems, Inc. All rights reserved.

Summary