A focus is placed on understanding the location and needs of user communities that access or change data and processes. Make a list of the next-hop address, being sure to remove all duplicates.
The Logical Design is the IP structure of your network depending on the services that will be provided to clients, you might need to analyze the possible traffic patterns that might result from your plan. It focuses on applications, sessions, and data transport before the selection of routers, switches, and media that operate at the lower layers.
The task of characterizing the existing network, including the logical and physical topology and network performance, follows.
In most cases, the logical network is a simple Class C network such as Logical design also includes security planning, network management design, and the initial investigation into which service providers can meet WAN and remote access requirements. Logical data flow diagrams represent features of a system that would exist no matter what the physical means of doing business are.
The top-down network design process includes exploring divisional and group structures to find the people for whom the network will provide services and from whom you should get valuable information to make the design succeed.
Logical and Physical Network Design By: In such diagrams, workstations are usually represented with small computer icons, servers with full tower cases, and switches. How important it is to let all users have unlimited access to the Internet.
Label each file name according to the section of the assignment for which it is written. Migration deployment scenarios must do more than describe how the fully migrated technology will exist after the migration is complete.
The last step in this phase is to analyze current and future network traffic, including traffic flow and load, protocol behavior, and quality of service QoS requirements.
Protect the company infrastructure and assets by applying the principals of CIA. The world we've made as a result of the level of thinking we have done thus far creates problems that we cannot solve at the same level at which we created them.
A solution to this problem is to use a streamlined, systematic methodology in which the network or upgrade is designed in a top-down fashion. My favorite resource for generic topology icons is Cisco. Because this is a migration project, the team should document the existing logical design as well as the logical design of the migrated application or infrastructure component, emphasizing the areas of change.
Using a Structured Network Design Process Top-down network design is a discipline that grew out of the success of structured software programming and structured systems analysis. The optimize phase may lead to a network redesign if too many problems arise due to design errors or as network performance degrades over time as actual use and capabilities diverge.
The physical design also defines the types of cable used to connect all devices and the distances the devices will have from the switch Appendix B. The graphically depicted solution is not included in the required page length.
Business goals include the capability to run network applications to meet corporate business objectives, and the need to work within business constraints, such as budgets, limited networking personnel, and tight timeframes.
Physical Diagram John W Kerns June 3, This article is a quick tutorial for creating and maintaining a physical network diagram. In addition, using the logical model for the current system as a basis for the proposed system provides for a gradual transition to the design of the new system.
All references to these diagrams must be included in the body of the infrastructure document. The physical design should include anticipated metrics to assess the performance goals, uptime goals, and milestones of the solution code to be written.
Better understanding of the business by analysts.
Include charts or diagrams created in MS Visio or Dia as an appendix of the infrastructure document.The network planning and design methodology is an engineering life cycle that supports technical initiatives such as Windows migration, IP telephony and wireless design to name a few examples.
- Physical Design - which network devices to use, how the network devices are cabled, what physical ports are used, racking, and power. - Logical Design - Layer2/3 design for network equipment. The OSI model was originally conceived as a standard architecture for building network systems and indeed, many popular network technologies today reflect the layered design of OSI.
The physical design of a network refers to the actual layout of the physical part of a network, the topology. It will show what type of technology will be utilized, such as Ethernet, fiber, ISDN, cable, or whatever will be used. Diagram and explain your physical network and computer design as well as the logical network design (server installation, domain layout, etc.).
As you are a small business, cost is a major factor and should be minimized. Oct 16, · Since the documentation you have been given is incomplete I would also recommend that you create both physical and logical network diagrams to help you understand your new environment.
The physical to help you identify ports, IPs, etc, and the logical will help you understand how the network should act.Download