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Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
Discovery routing switching_chapter1
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Discovery routing switching_chapter1

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  • 1. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1Introducing Routing and Switching in the Enterprise –Chapter 1Networking in theEnterprise
  • 2. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2Objectives Describe the logical architecture and components ofan enterprise network Explain the types of applications and traffic flowspresent on an enterprise network Examine how enterprises integrate remote workersinto their networks– Define the role and importance of a telecommuter– Describe the function and importance of VPNs
  • 3. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3Enterprise Network A large business environment with many users and locations• Manufacturers• Large retail stores• Restaurant and service franchises• Utilities and government agencies• Hospitals• School systems Supported by an enterprise networkSupport for critical applicationsSupport for converged network trafficNeed for centralized controlSupport for diverse business requirements Provides mission-critical services and applications Requires centralized control: NOC
  • 4. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  • 5. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5Enterprise Network Network infrastructure 99.999% uptime High-end equipment Fail-over capabilities Redundancy
  • 6. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6 Hierarchical design Access, Distribution, Core layers Enterprise networks contain both LAN and WANtechnologiesDescribe an Enterprise Network
  • 7. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7Describe an Enterprise NetworkIntranet Provide access to local andremote employees Private network Controlled by firewallsExtranet Privileged access for businesspartners Private network Controlled access
  • 8. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8Explain Types of Applications and TrafficFlows within an Enterprise Network Local WAN External Optimized bandwidth Security
  • 9. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9Explain Types of Applications and TrafficFlows within an Enterprise Network Characteristics of different types of network traffic Network traffic prioritizationClassificationPre-queuingQueuing and schedulingPost-queuing
  • 10. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10 Factors affecting enterprise traffic Latency Jitter Quality of Service (QoS)Explain Types of Applications and TrafficFlows within an Enterprise Network
  • 11. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11Examine How Enterprises Integrate RemoteWorkers into their Networks Teleworking Telecommuting Teleconferencing
  • 12. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12Examine How Enterprises Integrate RemoteWorkers into their Networks Describe remote worker applications VoIP Sharing applications FTP and Telnet
  • 13. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13Examine How Enterprises Integrate RemoteWorkers into their Networks Function and importance of VPNs Encryption of traffic Tunnels Client/server application
  • 14. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14Summary Enterprise networks support mission critical servicesand traffic Enterprise design includes a campus, enterprise edge,and service provider edge Intranets and extranets are private networks designedfor specific access privileges VPNs create encrypted tunnels for use by teleworkers
  • 15. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15

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