As a business grows, its network becomes larger and more complicated. This can cause problems with managing the network, leading to unexpected outages. These outages can be very expensive for businesses because they come with a lot of extra costs. Additionally, as the network gets bigger, it becomes harder to figure out what's causing problems when something goes wrong.

To make network management easier, businesses can use network diagramming tools. These tools create visual representations of the entire network infrastructure, which helps people understand how everything is connected. Having a clear picture of the network makes it easier to find and fix problems quickly, preventing downtime and saving money.

Why is network diagram software important?


  • See your network visually: Network diagramming tools create clear, easy-to-understand diagrams that show how your organization's network is spread out across different locations. This helps you visualize the network's structure and connections.
  • Monitor network device status: By using color codes in the diagrams, you can quickly check the status of network devices. This allows you to see if any devices are experiencing issues or are unavailable, providing an instant overview of your network's health.
  • Identify and fix problems easily: With an automatic network diagram software, you can quickly pinpoint and troubleshoot faults in your network. It streamlines the process by automatically detecting and highlighting problem areas, making it easier to address issues and minimize downtime.
  • Understand the impact of network faults: When a network fault occurs, the software enables you to assess the severity of the problem. You can easily identify the affected device and view its connections to other devices in the network. This knowledge helps you understand the potential impact and take appropriate actions.
  • Improve network planning: Network architecture diagram software represents various network components, such as routers, switches, and servers, in real-time diagrams. These visualizations assist you in better planning and forecasting for your network's growth and development. You can design an efficient network architecture that meets your organization's needs. Overall, network diagram software simplifies network management, enhances troubleshooting capabilities, and enables informed decision-making for optimizing your network's performance and reliability.

Types of Network Diagram

Network diagram software can be used to create two types of network diagrams.

Network Diagram Tool - ManageEngine OpManager

Physical Network diagrams

These diagrams show a visual representation of how devices are physically connected in a network. They use lines to represent the actual physical connections between devices. Physical network diagrams are helpful for network administrators to understand the layout and structure of the network.

Network Diagramming Software - ManageEngine OpManager

Logical Network diagrams

Unlike physical network diagrams, logical network diagrams focus on how data behaves in a network. They show how devices communicate with each other and the flow of data between them. Logical network diagrams help network administrators understand the data flow and how devices interact in the network.

Challenges faced while drawing a network diagram

Huge size of enterprise networks

Enterprise networks are often very large, consisting of numerous devices and interfaces. Understanding the layout of such networks is crucial, but it can be time-consuming to create a diagram for such complex networks.


Enterprise networks are dynamic, meaning the amount of traffic they handle can change over time. This dynamic nature makes it difficult to accurately represent the network in a diagram. Network administrators need to consider this variability when creating a network diagram.

Connectivity through Interfaces and Ports

A problem with interfaces and ports might significantly increase the chances of a network outage. These down-to-the-point details are complex but incredibly essential to maintain the seamless functioning of a network. Hence, a network admin has to get himself acquainted with these comprehensive details before drawing a network diagram which might be exhausting.

OpManager: An automated network diagramming tool

OpManager is a user-friendly network diagram software that helps you visually represent your business's network infrastructure. With OpManager's automatic network diagram feature, you can easily create visual representations of your network in different formats. These formats include:

Network diagram: Layer2 Maps

A vital requisite to automate network diagramming process 

OpManager, the automated network diagram software, offers an impressive feature called Layer2 Maps. This feature allows you to understand the logical structure of your network by representing it visually in a diagram.

Here's how Layer2 Maps can benefit you in a user-friendly way:

  • Visualize your network easily: Layer2 Maps provides a clear and intuitive visualization of the physical layout of your network. You can see how devices are connected and organized, making it easier to grasp the overall network topology.
  • Identify issues quickly: When a device in your network encounters problems, Layer2 Maps helps you pinpoint the devices and interfaces that will be affected. This enables you to troubleshoot and resolve issues faster, minimizing network downtime.
  • Customize and share your maps: You can save your Layer2 Maps as business views, allowing you to customize the layout according to your needs. Additionally, you can export the maps as Visio files or generate printable versions, making it convenient to share the network diagrams with colleagues or stakeholders.
  • Automatic mapping of Layer2 devices: With Layer2 discovery, OpManager automatically maps Layer2 devices in your network. You don't have to worry about manually creating or editing the map every time a new Layer2 device is added or discovered. This saves you time and effort in maintaining an up-to-date network diagram.

Network diagram: Business Views

To map devices according to their associated business services

OpManager's network diagram software helps you create a network topography diagram for your network infrastructure using the business view format. This maps views to their business functions accurately and offers a birds eye view for effective management.

Business view, one of the visualization formats in OpManager's network diagramming tool allows you to visually organize the devices in your network based on the business needs that they cater to. With business views you can :

  • Visually group devices that belong to a particular business.
  • View live link status between two network devices.
  • View the device details of all the individual devices in the business view from a single console.
  • Drill down to the snapshot details of the individual devices in the business view in just a click.
  • View network traffic from SNMP & netflow.

Network diagram: Maps

Visualize the critical devices in your network geographically

OpManager, the network diagramming software or network topology mapper, offers maps, a format which can be used to represent the location of your servers and other important devices geographically. Apart from this you can use the map tool to:

  • Gain a clear understanding of how your network is distributed geographically.
  • Connect your critical network devices to their real-world locations using either Google Maps or Zoho Maps.
  • Check the status of devices in specific geographic areas directly on the map.
  • Quickly access device snapshots by simply clicking on the embedded devices on the map.
  • Easily create network map diagrams within the user interface of the software.

Network topology diagram: Virtual devices

Now under the scope of OpManager's automatic network diagram software

OpManager, our network diagramming tool, can automatically create visual representations of your network's structure. It generates network topology diagrams for various virtualization platforms such as VMware VCenter, VM's, HyperV, and Xen hypervisors, including their guest and host machines. In our user-friendly Windows network diagram software, these diagrams are conveniently stored in tabs under the map menu, making them easily accessible for you.

Network diagram: 3D floor views

Diagrammatically represent the servers & switches in your network

OpManager's automatic network diagram solution is designed to simplify the maintenance and management of servers. One of its standout features is the 3D floor view, which helps you visualize your network infrastructure in a diagrammatic way. Here's how OpManager's 3D floor view can benefit you:

  • Create 3D views of your switches and servers on each floor: OpManager allows you to generate 3D representations of your switches and servers in your data center or server rooms. This visual representation makes it easier to understand and navigate your network infrastructure.
  • Simplify server and switch installations: With the 3D floor view, you can get a clear visual image of your server floors or rooms. This makes it convenient to identify suitable locations for installing new servers or switches, saving you time and effort.
  • Monitor server and switch status: The 3D floor view also provides real-time information about the status of your servers and switches. You can easily see if they are online, offline, or experiencing any issues, helping you stay on top of your network's health.
  • Identify faulty servers and switches: OpManager uses color codes in the 3D floor view to highlight any faulty servers or switches. This makes it effortless to spot problematic components in your network, allowing you to address them promptly and minimize downtime.

Network diagram: 3D Rack view

Granular visualization of devices via virtual racks

OpManager, the Linux network diagram software, has a really cool feature called the 3D rack view. It helps network administrators like you to create virtual racks that represent your actual server room or custom racks that suit your needs. This feature makes managing your network a breeze in the following ways:

  • Easy Organization: You can create a virtual 3D rack for a group of network devices that serve a common purpose. This allows you to organize and manage them effortlessly.
  • Visualize Your Network: The 3D rack view provides a topographical visualization of your devices in the network. You can populate devices onto the virtual rack in a specific order, giving you a better understanding of your network architecture.
  • Simplify Data Center Management: With 3D racks, you can visualize the exact physical arrangement of your racks in the data center. This makes managing your data center much easier and more efficient.
  • Spot Issues at a Glance: You can easily identify any issues with individual devices in these racks using color codes. This visual indicator helps you quickly pinpoint any problems that need attention.
  • Streamline Troubleshooting: If you come across a faulty device in the rack, you can simply click on it and you'll be taken to the device snapshot page. This makes troubleshooting a breeze, as you can quickly access the relevant information and resolve issues promptly.

How to draw a network diagram using OpManager

Before setting up a network for your organization, it's important to create a clear and understandable network diagram. This diagram helps you plan and organize your network effectively. OpManager, a versatile network diagram software, follows a simple three-component approach to make drawing network diagrams easy and efficient.

The first component is symbols that represent specific network components such as routers, switches, servers, and more. These symbols visually represent the devices in your network. The second component is link connectors that bridge the network components. These connectors show how the devices are connected to each other, helping you understand the connectivity within your network. The third component is labels, which are used to name the network components. This allows you to easily identify and locate specific devices in your network.

  • OpManager simplifies the process of creating network diagrams. It provides a list of discovered devices, which you can easily drag and drop onto the diagram. You can also use the multi-select option to add a range of devices quickly.
  • Once you have added the devices, you can position them according to your network layout. By creating links between the devices, you can visualize how they are connected and how they work together.
  • OpManager also allows you to select a background image for your diagram. You can choose your organization's layout or even use a world map to represent different branch offices. This helps you visualize your entire network in a single frame.


FAQs on Networking diagram software

What is a network diagram software?


What are the various visualization formats offered by a network diagram tool?


How do I create a network diagram automatically?


How do you create a network diagram?


How do you create a server diagram?


How do you draw a network topology diagram?


What is a network diagram used for?


What is a network infrastructure diagram?


What is a network mapping tool?


What is a server diagram?


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Customer reviews

OpManager - 10 Steps Ahead Of The Competition, One Step Away From Being Unequalled.
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Review Role: Infrastructure and OperationsCompany Size: Gov't/PS/ED 5,000 - 50,000 Employees
"I have a long-standing relationship with ManageEngine. OpManager has always missed one or two features that would make it truly the best tool on the market, but over it is the most comprehensive and easy to use the product on the market."
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"We have been using OpManager since 2011 and our overall experience has been excellent. The tool plays a vital role in providing the value to our organisation and to the customers we are supporting. The support is excellent and staff takes full responsibilities in resolving the issues. Innovation is never stopping and clearly visible with newer versions"
Easy Implementation With A Feature Rich Catalogue, Support Has Some Room For Improvement
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"The vendor has been supporting during the implementation & POC phases providing trial licenses. Feature requests and feedback is usually acted upon swiftly. There was sufficient vendor support during the implementation phase. After deployment, the support is more than adequate, where the vendor could make some improvements."
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Simple Implementation, Easy To Use. Very Intuitive.
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