Chapter 18 NETWORK DESIGN AND IMPLEMENTATION J33 I8 1INTRODIICTION Describes the process by which communication networks are designed and implemented Discuss the phase of the network design process There are some differences in the design techniques used for WANS LANS and internet www.gxmu.edu.cn
18.1 INTRODUCTION Describes the process by which communication networks are designed and implemented. Discuss the phase of the network design process. There are some differences in the design techniques used for WANs ,LANs, and internet. www.gxmu.edu.cn Chapter 18 NETWORK DESIGN AND IMPLEMENTATION
Chapter 18 NETWORK DESIGN AND IMPLEMENTATION J33 18.2 NETWORK DESIGN AND IMPLEMNETION PROCESS Develop the statement of requirements Investigate alternatives Phases Network design O Select equipment and vendors Prepare for implementation Implementation cutover www.gxmu.edu.cn
www.gxmu.edu.cn 18.2 NETWORK DESIGN AND IMPLEMNETION PROCESS Prepare for implementation Select equipment and vendors Network design Investigate alternatives Develop the statement of requirements Implementation cutover Phases Chapter 18 NETWORK DESIGN AND IMPLEMENTATION
Chapter 18 NETWORK DESIGN AND IMPLEMENTATION J33 The network design process may take anywhere from Note1: two weeks to twelve months to complete Management approval is normally required at the end Note2. of most phases of the network design process It is important to document all aspects of work Notes the alternative selected and why it was chosen, the ed including the requirements the alternatives consid estimated cost of implementing the network www.gxmu.edu.cn
www.gxmu.edu.cn Chapter 18 NETWORK DESIGN AND IMPLEMENTATION The network design process may take anywhere from two weeks to twelve months to complete. Management approval is normally required at the end of most phases of the network design process. It is important to document all aspects of work. including the requirements, the alternatives considered, the alternative selected and why it was chosen, the estimated cost of implementing the network
Chapter 18 NETWORK DESIGN AND IMPLEMENTATION J33 18.3 Requirements Phase o Statement of requirement It is a written description of the driving force behind the proposed network change the reasons that the team is being asked to look into a new or upgraded network. Design begins with a statement of requirements. The network design begins with an evaluation of alternatives.F It is important to understand the requirements for a new or upgraded network to ensure that what is implemented will satisfy the organization's needs. www.gxmu.edu.cn
18.3 Requirements Phase l Statement of requirement It is a written description of the driving force behind the proposed network change – the reasons that the team is being asked to look into a new or upgraded network. Design begins with a statement of requirements. l The network design begins with an evaluation of alternatives.F It is important to understand the requirements for a new or upgraded network to ensure that what is implemented will satisfy the organization’s needs. www.gxmu.edu.cn Chapter 18 NETWORK DESIGN AND IMPLEMENTATION
Chapter 18 NETWORK DESIGN AND IMPLEMENTATION J33 18.4 Investigate Alternatives 1. Ensure that the best most effective alternative is selected 2. When designing a network or network upgrade alternatives need to be investigated because there are always several ways to meet the requirements or solve existing problems. 3. New technical capabilities can influence a network design. 4. Internet frequently play a part in network designs. 5. When alternatives are being investigated. cost must be considered. Lets save one www.gxmu.edu.cn
18.4 Investigate Alternatives 1.Ensure that the best ,most effective alternative is selected. 2.When designing a network or network upgrade, alternatives need to be investigated because there are always several ways to meet the requirements or solve existing problems. 3.New technical capabilities can influence a network design. 4.Internet frequently play a part in network designs. 5.When alternatives are being investigated ,cost must be considered. www.gxmu.edu.cn Chapter 18 NETWORK DESIGN AND IMPLEMENTATION