Network Topologies

Small and medium-sized companies have network infrastructure which can total ten or more networking and computing devices (computers, servers, printers, telephones, routers, fax machines, scanners, etc.) All elements of a network have their own settings configured for fast and reliable service. As a company grows, it is necessary to incorporate new devices into the network, update existing devices, change the network topology, and even add new subnets. Changing the configuration of the network is only possible if there is documentation of the operating infrastructure.

To achieve high-quality documentation of network infrastructure, it is necessary to include the overall network structure topology, a communication scheme, the layout of the main devices, the scheme arrangement of servers in server racks, the list of installed services, services and databases for each server, and the scheme of corporate PBX.


Network Topology Diagram Software

ConceptDraw PRO is a powerful Network Topology Diagram software and intelligent vector graphics engine that can be used for network topologies diagrams. The shape libraries contain ready-to use icons of computers, servers, network devices, standard symbols and smart connectors for the quick and easy arrangement of network diagrams.

Network Topology icons, shapes and symbols

With ConceptDraw PRO you can simply create professional looking diagrams:

  • Network topology,
  • Physical network,
  • Logical network,
  • Network mapping,
  • Home area networks (HAN),
  • Wireless network,
  • Cisco network topologies,
  • Fully connected network topology,
  • Bus network topology,
  • Star network topology,
  • Ring network topology,
  • Mesh network topology,
  • Tree network topology,
  • Cable network,
  • Network wiring,
  • Local area network (LAN),
  • Wide area network (WAN) topology,
  • Metropolitan area networks (MAN),
  • Campus area networks (CAN),
  • Storage area networks (SAN),
  • Near-me area networks (NAN),
  • Personal area (PAN) networks,
  • Near field communication (NFC),
  • ISG network,
  • Interactive voice response (IVR) networks,
  • Activity network,
  • Local network area,
  • Network security,
  • Network wiring cable,
  • Computer network architecture,
  • Enterprise private network,
  • Internet networks,
  • Network configuration,
  • Active directory network,
  • Network protocols,
  • Network voip,
  • Virtual networks,
  • Virtual private networks (VPN),
  • Rack diagrams,
  • Network layout,
  • Backbone network,
  • Radio networks,
  • Television networks,
  • Telecommunication networks,
  • Overlay networks,
  • 3D network diagrams
  • ATM-Network,
  • Butterfly network,
  • EIGRP,
  • IGMP,
  • MPLS,
  • OSPF Network,
  • P2MP network,
  • DES network,
  • Software Defined Networking System Overview,
  • Cloud Computing,
  • Mesh network,
  • Internet Connectivity,
  • Computer network,
  • Digital Communications Network,
  • Netflow architecture,
  • Network Community Structure,
  • phone networks,
  • Overlay network,
  • Office Network,
  • VMware vNetwork Distributied Switch (vDS),
  • EPN Frame-Relay and Dial-up Network,


What is Network Topology

Network topology is the topological structure of the computer network. Network topology can be physical or logical. The logical topology describes the network dataflows from one device to the next. The physical topology is the arrangement of the different elements of the computer network such as computers, cables and other devices. The physical topology shows the cabling layout of the network, the locations of the nodes and interconnections between cables and nodes. A network logical and physical topologies can be the same.

There are the following basic types of the network topologies:


Bus Network Topology

In local area networks where bus topology is used, each node is connected to a single cable. A signal from the source travels in both directions to all machines connected on the bus cable until it finds the intended recipient. If the data matches the machine address, the data is accepted, otherwise the machine ignores the data. Since the bus topology consists of only one wire, it is rather inexpensive to implement when compared to other topologies. However, the low cost of implementing the technology is offset by the high cost of managing the network. Additionally, since only one cable is utilized, it can be the single point of failure. If the network cable is terminated on both ends and when without termination data transfer stop and when cable breaks, the entire network will be down.

Bus Network Topology

Pic. 1. Bus Network Topology


Star Network Topology

In local area networks with a star topology, each network host is connected to a central hub with a point-to-point connection. In Star topology every node (computer workstation or any other peripheral) is connected to central node called hub or switch. The switch is the server and the peripherals are the clients. The network does not necessarily have to resemble a star to be classified as a star network, but all of the nodes on the network must be connected to one central device. All traffic that traverses the network passes through the central hub. The hub acts as a signal repeater. The star topology is considered the easiest topology to design and implement. An advantage of the star topology is the simplicity of adding additional nodes. The primary disadvantage of the star topology is that the hub represents a single point of failure.

Star Network Topology

Pic. 2. Star Network Topology


Ring Network Topology

A network topology that is set up in a circular fashion in which data travels around the ring in one direction and each device on the ring acts as a repeater to keep the signal strong as it travels. Each device incorporates a receiver for the incoming signal and a transmitter to send the data on to the next device in the ring. The network is dependent on the ability of the signal to travel around the ring. When a device sends data, it must travel through each device on the ring until it reaches its destination. Every node is a critical link.

Ring Network Topology

Pic. 3. Ring Network Topology


Mesh Network Topology

A mesh network is a network topology in which each node relays data for the network. All nodes cooperate in the distribution of data in the network. A mesh network can be designed using a flooding or a routing techniques. When using a routing technique, the message is propagated along a path, by hopping from node to node until the destination is reached. To ensure all its paths' availability, a routing network must allow for continuous connections and reconfiguration around broken or blocked paths, using self-healing algorithms. The self-healing capability enables a routing based network to operate when one node breaks down or a connection goes bad. As a result, the network is typically quite reliable. A mesh network whose nodes are all connected to each other is a fully connected network. Mesh networks can be also seen as one type of ad hoc network.

Mesh Network Topology

Pic. 4. Mesh Network Topology


Tree Network Topology

This particular type of network topology is based on a hierarchy of nodes. The highest level of any tree network consists of a single 'root' node that is connected with a single or multiple nodes in the level below by point-to-point links. These lower level nodes are also connected to a single or multiple nodes in the next level down. Tree networks are not constrained to any number of levels, but as tree networks are a variant of the bus network topology, they are prone to crippling network failures should a connection in a higher level of nodes fail/suffer damage. Each node in the network has a fixed number of nodes connected to it at the next lower level in the hierarchy, this number referred to as the 'branching factor' of the tree.

Tree Network Topology

Pic. 5. Tree Network Topology


Fully Connected Network Topology

A fully connected network, complete topology, or full mesh topology is a network topology in which there is a direct link between all pairs of nodes. In a fully connected network with n nodes, there are n(n-1)/2 direct links. Networks designed with this topology are usually very expensive to set up, but provide a high degree of reliability due to the multiple paths for data that are provided by the large number of redundant links between nodes. This topology is mostly seen in military applications.

Fully Connected Network Topology

Pic. 6. Fully Connected Network Topology


Common Network Topologies Diagram

Pic. 7. Common Network Topologies Diagram

These samples was created in ConceptDraw PRO diagramming and vector drawing software using the Computer Network Diagrams Solution from Computer and Networks area of ConceptDraw Solution Park. These diagrams show the basic types of the network topologies.

Network Topology solution

Pic. 8. Network Topologies Solution

Use the predesigned vector stencils, examples and templates from the Computer Network Diagrams Solution for ConceptDraw PRO to design your own professional Computer Network Topology Diagrams quick and easy.







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TEN RELATED HOW TO's:

Fully Connected Network Topology Diagram

There are several basic topologies including bus, star, point-to-point, ring and a hybrid. Two computers can form a fully connected network topology, and as the number of network nodes increases, the network diagram gets more complicated. This type of topology is also called a full mesh. This is a visual example of a computer network built using a mesh topology. This diagram presents the schematic structure of the full mesh network topology. A common mesh network topology means that each network device is connected with several points in the network, so if the one node of the network goes down, it does not cause an issue with an operability of the entire computer network. In a full mesh network topology, every computer or device in the network is interconnected with each of the other devices in the network.Network Topology - Fully Connected
Picture: Fully Connected Network Topology Diagram
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Campus Area Networks (CAN). Computer and Network Examples

If we divide computer networks by scale, we get several main categories. The smallest network is PAN, as it connects personal devices themselves, and as the number of users grows, a local area network can be recognized, and campus area networks (CAN) connects several local networks located within some area like a university or a corporation. Computers connected to CAN share public educational materials and list of CAN network examples includes such prestigious universities like Stanford and Carnegie Mellon. This is an example of a computer network diagram created for a campus area network. It was created using using ConceptDraw solution for the Computer and Network diagramming. The specific of this sample campus network is its distribution. It is rather broad to embrace a big campus territory. This diagram can be applied as a template for designing custom area network topology diagram for a particular educational institution.Campus Area Network
Picture: Campus Area Networks (CAN). Computer and Network Examples
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How To Create Restaurant Floor Plan in Minutes

As restaurant industry is growing rapidly nowadays, researches show that almost half of the adults have worked in a restaurant or a cafe. Moreover, many of them dream to start their own someday. Unfortunately, it takes a lot of time to write a business plan and to find a great location, although some know how to create a restaurant floor plan in minutes or how to plan budget effortlessly. Hiring employees can also cause a lot of headache, but this is crucial for further success, because every guest comes to restaurant for a good service and delicious food. It is also worth noting that restaurant concept is also important, because it defines target audience and influences the menu. This diagram represents the floor plan of an ongoing sports-theme establishment - restaurant, cafe, or other food service. A number of widescreen monitors installed along the perimeter provide visitors the opportunity to follow the course of a match from anywhere in the dining room of restaurant or cafe. The most of sports fans believe that food and alcohol is a big part of any sports show. That is why the dining room takes the most space - almost 60% of the total establishment space. Nearly all sports fans consume beverages while watching sports - beer, soda or water at least. Thus, the restaurant floor plan designers added a large lavatory there. Moreover, project developers considered unnecessary the gender division of such delicate place - perhaps they guess that only men are watching football, or believe that alcohol will eliminate the most of gender differences.Design  Restaurant Floor Plans
Picture: How To Create Restaurant Floor Plan in Minutes
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Tree Network Topology Diagram

When designing a network, it is important to take into account the hierarchy of network devices. When you have a root device you should consider a tree network topology that might have any number of lower levels as you might need. This technology is based on star and bus network topologies. This is a schematic representation of a Tree computer network topology. A tree topology means that some star networks are linked together. A star network is a topology of the local network where a central workstation is connected with each end-user computer or peripherals. A tree structure means that, the central nodes of these star networks are linked to a main cable (the Bus topology). So, a Tree network topology is a few Star networks connected into a Bus topology. This scheme can be applied to draw the particular physical or logical network diagrams using the ConceptDraw Computer and Networks solution.Tree Network Topology
Picture: Tree Network Topology Diagram
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Hotel Network Topology Diagram

A network diagram represents the set of computers and network devices and the connections among them. This scheme can be developed for any institution or establishment. To illustrate this concept let’s take for example, a hotel network topology diagram or a school network diagram. These diagrams depict access points, servers, workstations, firewalls and another equipment needed to provide a network. On this masterpiece drawing one will see a simple scheme a of connecting computers together. Such form of connecting can be applied for a hotel, guest house, bungalow, hut or something else. This diagram shows the images of the real LAN components. So, it represents a physical category of a network construction. It looks similar to a star - so this network configuration is named a star topology. The typical feature of this construction is a center point - usually it is hub, or router. The rays of this star means network connections. Computers, peripherals and other network details are placed on the ends of the star rays.Hotel Network Topology Diagram
Picture: Hotel Network Topology Diagram
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Star Network Topology

Nodes of any computer network are somehow organized in a hierarchy or a layout. Some of the common layouts like star network topology are more reliable and some like ring topology withstand high loads better. It is also important to distinguish logical topologies from physical. This diagram represents a typical view of the star network topology. The star network topology is one of the most frequently used network topologies in the majority of office and home networks. It is very popular because of its low cost and the easy maintenance. The plus of the star network topology is that if one computer on the local network is downed, this means that only the failed computer can not send or receive data. The other part of the network works normally. The minus of using star network topology is that all computers are connected to a single point-switch, or hub. Thus, if this equipment goes down, the whole local network comes down.Star Network Topology
Picture: Star Network Topology
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Bus Network Topology

If you have a small budget to design a computer network, you have to be very careful. One of the most cheap technologies to implement is a bus network topology, however it has many disadvantages. For instance, if the network cable is somehow damaged, the entire network won't work. This diagram illustrates a so-called "Bus" network topology. This type of network arrangement means that each computer or other device is linked to a main link (bus). The end nodes are shown as a circle. The links to the bus are depicted as solid vertical lines. The bus is shown as a bold horizontal line. This diagram can serve as a template for creating logical or physical network diagrams. The set of vector libraries supplied with ConceptDraw Computer and Networks solution contains the symbols of all LAN and WLAN elements required for creating network diagrams of any configuration.Bus Network Topology
Picture: Bus Network Topology
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Local area network (LAN). Computer and Network Examples

Computer networks nowadays are spread all across the world. The large number of parameters, such as geographic scale or communication protocols, can divide networks. One of the most common types of networks is called local area network (LAN). It convenient to represent network examples by means of diagrams. This local area network (LAN) diagram provides an easy way to see the way the devices in a local network are interacted. The diagram uses a library containing specific symbols to represent network equipment , media and the end-user devices such as computers (PC, mac, laptop) , network printer, hubs, server and finally a modem. There are two types of network topologies: physical and logical. The current diagram represents precisely a physical type of LAN topology because it refers to the physical layout of a local network equipment.Local area network (LAN). Computer and Network Examples
Picture: Local area network (LAN). Computer and Network Examples
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How to Draw a Computer Network Diagrams

Planning a computer network can be a challenge for a junior specialist. However, knowing how to draw a computer network diagrams isn’t a rocket science anymore. There are a lot of special software for creating such diagrams with predesigned templates and examples. The core for Network Fault Tolerance System presented here, is the equipment of Cisco. You can see here the certified Cisco equipment icons. Generally, ConceptDraw PRO libraries contain more than half of a thousand objects representing the standardized images of Cisco equipment. ConceptDraw solution for network diagramming is a great network diagramming tool for any level skills - from students to network guru.Computer Network Diagram
Picture: How to Draw a Computer Network Diagrams
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Metropolitan area networks (MAN). Computer and Network Examples

A list of parameters on which networks differ is very long. A large network with a range up to 50 kilometers is called metropolitan area network (MAN), and this type of network can include several local area networks. Metropolitan networks in their turn connect into global area networks. Here you will see a Metropolitan Area Network (MAN). This is an extensive network which occupies a large territory including a few buildings or even the whole city. The space of the MAN is bigger than LAN, but lower than WAN. MAN comprise a lot of communication equipment and delivers the Internet connection to the LANs in the city area. Computer and Networks solution for ConceptDraw PRO provides a set of libraries with ready-to-use vector objects to design various kinds of computer networks.Metropolitan area networks (MAN). Computer and Network Examples
Picture: Metropolitan area networks (MAN). Computer and Network Examples
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