Cisco Systems, Inc., Empowering the Internet Generation (SM)
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Identify Customer Needs - Characterize the Existing Network

  1. Identify all the data you should gather to characterize the customer's existing network.
  2. Document the customer's current applications, protocols, topology, and number of users.
  3. Document the customer's business issues that are relevant to a network design project.
  4. Assess the health of the customer's existing network and make conclusions about the network's ability to support growth.
  5. Determine the customer's requirements for new applications, protocols, number of users, peak usage hours, security, and network management.
  6. Diagram the flow of information for new applications.
  7. Isolate the customer's criteria for accepting the performance of a network.
  8. List some tools that will help you characterize new network traffic.
  9. Predict the amount of traffic and the type of traffic caused by the applications, given charts that characterize typical network traffic.
   
 

4. Identify all the data you should gather to characterize the customer's existing network.

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5. Document the customer's current applications, protocols, topology, and number of users.

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6. Document the customer's business issues that are relevant to a network design project.

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Business Goals

Business Goals refer to corporate policies, monetary issues, and market presence.

  • Expand into global markets.
  • Expand the data readily available to employees and field offices.
  • Increase company revenue and profit.
  • Modernize outdated technologies.

Technical Goals

Technical Goals refer to changes in software and/or hardware.

  • Improve the network response time.
  • Reduce broadcasts to improve network performance.

Business Constraints

Business constraints can take some time to get used to. One way to think of them: Business Constraints are the things that make a given set of networking considerations unique for a particular client.

  • Additional staffing requirements for a proposed project.
  • Project timeline.

Technical Constraints

  • Application tolerance for delay.
  • Broadcast storms on the Token Ring.
  • Data transport and information flows.
  • Names and types of applications.
Exam
   
 

7. Assess the health of the customer's existing network and make conclusions about the network's ability to support growth.

Thank You Line

   
 
 
   
 

8. Determine the customer's requirements for new applications, protocols, number of users, peak usage hours, security, and network management.

Thank You Line

   
 
 
   
 

9. Diagram the flow of information for new applications.

Thank You Line

   
 
 
   
 

10. Isolate the customer's criteria for accepting the performance of a network.

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Network Performance is defined by:

  • Capacity
  • Efficiency
  • Response time
  • Utilization

Fault tolerance is an unvarying quantity represented by redundant hardware, such as extra drives in a RAID unit or extra power supply in a Cisco Catalyst 5000.

Cost per user represents sunken cost in network hardware. Ordinarily, this variable does not change after a network design has been implemented. By contrast, other items like response time can be changed through tuning.

Exam
   
 

11. List some tools that will help you characterize new network traffic.

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12. Predict the amount of traffic and the type of traffic caused by the applications, given charts that characterize typical network traffic.

Thank You Line

   
 
 
   

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