CCNA Discovery 3 - Chapter 1

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CCNA Discovery 3 - Chapter 1

  1. 1. Networking in the Enterprise Introducing Routing and Switching in the Enterprise – Chapter 1Version 4.0 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 2. Objectives Describe the logical architecture and components of an enterprise network Explain the types of applications and traffic flows present on an enterprise network Examine how enterprises integrate remote workers into their networks – Define the role and importance of a telecommuter – Describe the function and importance of VPNs © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. Describe an Enterprise Network A large business environment with many users and locations Supported by an enterprise network Provides mission-critical services and applications Requires centralized control: NOC © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 4. Describe an Enterprise Network Network infrastructure 99.999% uptime High-end equipment Fail-over capabilities Redundancy © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. Describe an Enterprise Network Hierarchical design Access, Distribution, Core layers Enterprise networks contain both LAN and WAN technologies © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Describe an Enterprise NetworkIntranet Extranet Provide access to local and  Privileged access for business remote employees partners Private network  Private network Controlled by firewalls  Controlled access © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Explain Types of Applications and TrafficFlows within an Enterprise Network Local WAN External Optimized bandwidth Security © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Explain Types of Applications and TrafficFlows within an Enterprise Network Characteristics of different types of network traffic Network traffic prioritization Classification Pre-queuing Queuing and scheduling Post-queuing © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Explain Types of Applications and TrafficFlows within an Enterprise Network Factors affecting enterprise traffic Latency Jitter Quality of Service (QoS) © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Examine How Enterprises Integrate RemoteWorkers into their Networks Teleworking Telecommuting Teleconferencing © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Examine How Enterprises Integrate RemoteWorkers into their Networks Describe remote worker applications VoIP Sharing applications FTP and Telnet © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Examine How Enterprises Integrate RemoteWorkers into their Networks Function and importance of VPNs Encryption of traffic Tunnels Client/server application © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Summary Enterprise networks support mission critical services and traffic Enterprise design includes a campus, enterprise edge, and service provider edge Intranets and extranets are private networks designed for specific access privileges VPNs create encrypted tunnels for use by teleworkers © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14

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