Network Design

Network Design

Network Design

Communications and computer networks are essential to the success of large and small organizations alike. They link people, support operating systems, and provide companies access to the resources they need to function. Network design is growing increasingly complicated in order to suit the needs of companies on a regular basis.

The backbone of a company’s operation is its IT network, which links all of the computer systems and connected devices, allowing employees to operate more effectively across the board. It’s vital that anything so mission-critical is properly developed and set up. This article intends to help you learn the fundamentals of excellent network infrastructure design if you’re wondering how to build a network.

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What is Network Design?

Before a company’s IT infrastructure can be deployed, it must go through a network design process. It entails assessing and comprehending how all network pieces (from routers, switches, and servers to PCs, laptops, and printers) interact with one another and how they may be made to perform as effectively as possible. Improved operational effectiveness may be achieved with a well-designed system.Network designers, IT admins, and other related workers are often in charge of network design.

Why do we need a Network?

Today’s Internet-based economy frequently necessitates 24-hour customer assistance. As a result, corporate networks must be accessible virtually all of the time. They must be intelligent enough to protect themselves against unanticipated security problems. To guarantee continuous application response, these business networks must be able to respond to fluctuating traffic volumes. Thus, without careful planning and design, it is no longer feasible to build networks by linking numerous separate components.

How to undertake Network Designing?

Good networks aren’t created by chance. They’re the product of a lot of hard work by network designers and technicians who assess network requirements and choose the finest solutions to fulfil a company’s demands.

The following are the stages involved in creating a good network:

Step 1:

Double-check the business objectives and technical specifications.

Step 2:

Identify the features and functionalities that are necessary to satisfy the requirements defined in step 1.

Step 3:

Evaluate your network’s preparedness.

Step 4:

Develop a solution and a plan for site acceptability testing.

Step 5:

Make a project strategy. As the project progresses, the processes for developing a good network are followed after the network needs have been defined. The intricacy of the underlying network is rarely considered by network users. They consider the network as a means of gaining access to the apps they require at the time they require them.

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Requirements from the Network

Most firms just have a few network requirements: 

  • The network must be operational at all times, even in the face of lost links, equipment failure, or overburdening.
  • From any host to any host, the network should dependably deliver applications and offer appropriate response times.
  • The network must be safe. It should safeguard data communicated over it as well as data kept on devices connected to it.
  • The network should be simple to adjust in order to accommodate network expansion and typical business changes.
  • Because problems do happen, troubleshooting should be simple. Finding and resolving an issue should not take too long.

Core Design Objectives

When you look at these needs closely, you’ll notice that they translate into four basic network design goals:

  • Scalability: Scalable network architectures may expand to encompass additional user groups and remote sites, as well as new applications, without compromising the quality of service provided to current users.
  • Availability: An availability network is a system that provides continuous, dependable service 24/7. Additionally, a single connection or piece of equipment failing should never have a substantial influence on system performance.
  • Security: It is a characteristic that should be built into the network rather than introduced after it has been built. Security devices, filters, and firewall features must be strategically placed to protect network resources.
  • Administrability: The available network employees must be able to administer and support the network, regardless of how good the initial network architecture is. A network that is overly complicated or difficult to manage will not be functional or efficient.

Implementing the Process

The network design should be laid out as a network diagram to aid in the physical implementation process, which will serve as a guide for the engineers when they arrive to instal it.

Your network infrastructure design should incorporate a variety of features, including:

  • A network map that is easy to understand.
  • The cabling’s structure and arrangement necessitated
  • The number, type, and location of all devices on the network
  • Your addressing scheme for IP addresses
  • Your network security architecture and operations in detail

Designing a Hierarchical Network

We can use a hierarchical architecture in networking to organize devices into numerous networks. We can use tire technique to arrange the networks. The three basic levels of the hierarchical design model are:

  • The core layer connects the devices in the distribution layer
  • You can interconnect smaller local networks by the distribution layer.
  • The access layer connects network hosts with end users devices.

In comparison to flat network architectures, hierarchical networks have advantages. Local traffic remains local when we divide a flat network into smaller, easier-to-manage hierarchical units. Only traffic bound for other networks is routed through a higher layer.

Building Network Diagram

What is a network diagram?

A network diagram is a diagram that shows how a computer or telecommunication network works. It depicts the many elements that make up a system, as well as how they communicate, such as routers, devices, hubs, and firewalls. 

A network diagram may contain a lot of information or only offer a general overview, according to its original mission. A LAN diagram, for example, may indicate individual computer IP addresses, but a MAN (metropolitan area network) diagram may depict buildings or regions with a single node.

A network diagram might be physical or conceptual in nature.

What are the applications of network diagrams?

We use network designs for a number of reasons due to their ability. This is to depict how network components interact.They can serve multitudinous purposes:

  • Creating a home or professional network structure
  • Updates to an existing network must be coordinated.
  • Troubleshooting and reporting network issues
  • In order to meet PCI or other standards
  • As paperwork for external communication, onboarding, and other similar activities.
  • To keep track of the many components
  • Sending pertinent information to a vendor for an RFP (request for proposal) without revealing sensitive data
  • Financial stakeholders should be ready to pusuade to invest in a network idea.
  • Proposing Syslog infrastructure modifications at a high level

How do you construct a network diagram?

Make sure you have a clear purpose in mind before you start drawing. It’s preferable to make numerous diagrams, each reflecting a distinct feature of the network, rather than trying to jam everything into one.

Follow these steps to create a beautiful, usable network diagram after you’ve chosen a network to map.

  1. Make a list of the equipment. Don’t be concerned with connections at first. Instead, make a list of all the workstations, servers, routers, firewalls, and other network devices. If you’re using network diagramming software, just drag forms into the canvas to do this.
  2. Sort the shapes into groups. Move related shapes closer to one another to start constructing your diagram. It depends on the diagram you are making, shapes might be interconnecting with each other logically or physically.
  3. Connect the dots. A line connecting two forms indicates linking in some way, most commonly through information transfer.
  4. Label. Include any extra information about every shape that you think your audience may find helpful. You may either put that information next to each component or number them and then add further information in a legend.
  5. The formatting is complete. Adjust the size, color, and other properties of your diagram elements until you’re happy.

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Network design best practices

Here are five network design best practises to assist guarantee your network runs smoothly, scales with your organisation, and ultimately helps the organisation perform better.

Don’t compromise on the design stage.

          When it comes to developing networks, one of the most common mistakes is failing to consider the larger picture. You can’t just make a network out of your brain; you’ll need a physical blueprint and a structural design. This will guarantee that your network is as efficient as possible, and you’ll be able to plan for future deployments and equipment.

Future Planning

      Network bandwidth needs will continue to rise as we adopt technologies such as the internet of things (IoT), video conferencing, and collaboration tools. You must consider these potential eventualities and make plans accordingly.

Integrate security into your design

     You cannot regard network security as an afterthought. Rather, it is something that must be included in the very core of your network design. It also needs clear instructions and regulations for how it will be implemented.


       When designing your network, make sure to plan for network monitoring so you know exactly what is going on. This will help you see problems—often before they occur—and ensure nothing compromises either the performance or security of your network. So think carefully about the systems you need to put in place to do this.


          Although you should just not change course every time something new emerges, you should structure your network to be adaptable enough just to swiftly adapt to what you consider to be beneficial new methods so you can reap the advantages sooner rather than later. That way, you can make sure your network is a competitive edge for your company.

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Finally, I’d like to wish you luck! For your future network designing.

By Susan White

Hi, I am Susan White. I am a Senior Marketing Executive and Content Editor at For the past few years I have been working with this company. I hope you liked the post above from one of our team members. If you want to share any improvements or want some more on this blog, please share your request on our email have been in this academic industry for a very long time. You can know more about me from my LinkedIn profile. Below are some of my achievements that I prize:- Successfully published five academic research papers in the marketing field - Assisted hundreds of students get best grades in their courses - Regularly helping my colleagues do their best at their job - Toured several places around the world in the past five years! - A proud mother of a kid! :)Thank you again for reading this article. I look forward to your feedback and continued support.