Planning a Network     Upgrade              Working at a Small-to-Medium Business or ISP –              Chapter 3Version 4...
Objectives Perform a customer site survey. Describe the importance of planning when beginning a  network upgrade. Descr...
Documenting the Existing Network Perform a site survey. Investigate and document the physical layout of the  premises.  ...
Documenting the Existing Network Current information gathered during a site survey:    – Number of users and types of equ...
Documenting the Existing Network Planning information gathered during a site survey:    – Projected growth    – New servi...
Documenting the Existing Network Physical topologies    – Wired    – Wireless Logical topologies                        ...
Documenting the Existing Network Understand the relationship between the devices and  the network, regardless of the phys...
Documenting the Existing Network Record information about the current network on a brief  inventory sheet.               ...
Planning the Network Upgrade Requirements Gathering Selection and Design Implementation Operation Review and Evaluati...
Planning the Network Upgrade Physical environment Wiring closets: MDF, IDF                             © 2007 Cisco Syst...
Planning the Network Upgrade Cabling considerations:    – User work areas    – Telecommunications room    – Backbone area...
Planning the Network Upgrade Structured cabling Cabling choices: STP, UTP, coaxial, fiber optic Patch cables Horizonta...
Planning the Network Upgrade Straight-through cables Crossover cables Console (rollover) cables Serial cables         ...
Purchasing and Maintaining Equipment Managed Service In-House                    © 2007 Cisco Systems, Inc. All rights r...
Purchasing and Maintaining Equipment LAN switches provide connectivity within the local area  networks.                  ...
Purchasing and Maintaining Equipment Routers interconnect local networks and are needed in  a WAN environment.           ...
Purchasing and Maintaining Equipment ISRs combine the functions of switches, routers,  access points, and firewalls into ...
Purchasing and Maintaining EquipmentFactors for choosing a router: Type of connectivity Features available Cost        ...
Purchasing and Maintaining Equipment Design considerations:    – Reliability    – Availability    – “5 9s of uptime”    –...
Purchasing and Maintaining Equipment IP addressing plan:    – IP address scheme    – Network information                 ...
Summary A site survey including extensive documentation of both  physical and logical network information must be  perfor...
© 2007 Cisco Systems, Inc. All rights reserved.   Cisco Public   22
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CCNA Discovery 2 - Chapter 3

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CCNA Discovery 2 - Chapter 3

  1. 1. Planning a Network Upgrade Working at a Small-to-Medium Business or ISP – Chapter 3Version 4.1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 2. Objectives Perform a customer site survey. Describe the importance of planning when beginning a network upgrade. Describe physical topology considerations when upgrading a network. Describe structured cabling. Describe network configuration and interaction of network devices. Describe other considerations when planning an upgrade. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. Documenting the Existing Network Perform a site survey. Investigate and document the physical layout of the premises. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 4. Documenting the Existing Network Current information gathered during a site survey: – Number of users and types of equipment – Current Internet connectivity – Application requirements – Existing infrastructure – Physical layout © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. Documenting the Existing Network Planning information gathered during a site survey: – Projected growth – New services required – Security and privacy requirements – Reliability and uptime expected – Budget constraints © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Documenting the Existing Network Physical topologies – Wired – Wireless Logical topologies © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Documenting the Existing Network Understand the relationship between the devices and the network, regardless of the physical cabling layout © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Documenting the Existing Network Record information about the current network on a brief inventory sheet. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Planning the Network Upgrade Requirements Gathering Selection and Design Implementation Operation Review and Evaluation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Planning the Network Upgrade Physical environment Wiring closets: MDF, IDF © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Planning the Network Upgrade Cabling considerations: – User work areas – Telecommunications room – Backbone area – Distribution area © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Planning the Network Upgrade Structured cabling Cabling choices: STP, UTP, coaxial, fiber optic Patch cables Horizontal cabling Vertical cabling Backbone cabling Cable management Cable labeling © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Planning the Network Upgrade Straight-through cables Crossover cables Console (rollover) cables Serial cables © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. Purchasing and Maintaining Equipment Managed Service In-House © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  15. 15. Purchasing and Maintaining Equipment LAN switches provide connectivity within the local area networks. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  16. 16. Purchasing and Maintaining Equipment Routers interconnect local networks and are needed in a WAN environment. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  17. 17. Purchasing and Maintaining Equipment ISRs combine the functions of switches, routers, access points, and firewalls into the same device. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  18. 18. Purchasing and Maintaining EquipmentFactors for choosing a router: Type of connectivity Features available Cost © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  19. 19. Purchasing and Maintaining Equipment Design considerations: – Reliability – Availability – “5 9s of uptime” – Fault tolerance © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19
  20. 20. Purchasing and Maintaining Equipment IP addressing plan: – IP address scheme – Network information © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20
  21. 21. Summary A site survey including extensive documentation of both physical and logical network information must be performed before a network upgrade can be planned. The five phases of a network upgrade include requirements gathering, selection and design, implementation, operation, and review and evaluation. Structured cabling deals with the placement of cables, location of wiring closets, cable management, and electrical considerations. Cost and expandability are important considerations when planning equipment upgrades. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21
  22. 22. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22

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