CCNA Discovery 3 - Chapter 2

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CCNA Discovery 3 - Chapter 2

  1. 1. Exploring the Enterprise Network Infrastructure Introducing Routing and Switching in the Enterprise – Chapter 2Version 4.0 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 2. Objectives Interpret network documentation. – Describe the equipment in the enterprise Network Operations Center. Explain the importance of the enterprise edge in the provisioning of services. – Describe the Point-of-Presence for service delivery. – Identify security considerations and equipment at the enterprise edge. Identify router and switch hardware characteristics and use router CLI configuration and verification commands. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. Interpret Network Documentation Network infrastructure diagrams Physical topology map Logical topology map Control plane information: failure domains © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 4. Interpret Network Documentation Floor plans and blueprints Redlining shows changes As-built diagram documents changes from original plans © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. Interpret Network Documentation Business Continuity Plan Business Security Plan Network Maintenance Plan Service Level Agreement © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Describe the Equipment in the Enterprise NOC Raised floors High performance UPS and HVAC Fire suppression systems Network monitoring equipment MDF switches and routers © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Describe the Equipment in the Enterprise NOC Server farm Data storage Storage Area Network (SAN) © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Interpret Network Documentation Structured cabling standards Main Distribution Facility (MDF) Telecommunications room Intermediate Distribution Facility (IDF) © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Explain the Importance of the Enterprise Edgein the Provisioning of Services Point-of-Presence (POP) Demarc Links to outside services and sites © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Explain the Importance of the Enterprise Edgein the Provisioning of Services Security considerations at the enterprise edge –Denial of Service (DoS) attacks –Application of filtering policies Firewall Demilitarized zone Intrusion detection and prevention © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Explain the Importance of the Enterprise Edgein the Provisioning of Services Connection services WAN punchdown block Channel Service Unit/Data Service Unit (CSU/DSU) Customer Premises Equipment (CPE) © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Identify Router Hardware Characteristics Router functions Form factors Interfaces Management options © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Use Router CLI Show Commands General use Routing related Interface related Connectivity related © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. Use Basic Router Configuration Commands Configuration management Global settings Line settings Interface settings Routing settings © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  15. 15. Identify Switch Hardware Characteristics Switch functions Form factors Port density © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  16. 16. Use Switch CLI Show Commands General use Interface/port related Connectivity related © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  17. 17. Use Switch CLI Configuration Commands Configuration management Global settings Interface settings © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  18. 18. Summary Network infrastructure diagrams document devices in a network The enterprise NOC manages and monitors all network resources The enterprise edge provides Internet and local access services and security against attacks Access Layer switches provide end user connections, security services, and microsegmentation of collision domains Distribution Layer routers control broadcasts and move packets between locations and the Internet © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  19. 19. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 19

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