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The network topology is extremely important when designing a Computer network. Therefore, it is important to know the different types of network topology since they define the way in which these computers or nodes are going to be connected. In this article we will explain it in a simple way.

What is a network topologist?

The network topologist is defined as a Physical or logical map of a network for data exchange; This is the way in which a network has been designed and the way in which its different parts are interconnected.

Keep in mind that the concept of net It is defined as a set of interconnected nodes, where each node is a point where a curve intersects with itself. Each node in particular will depend on the type of network in question.

What is a network topology for?

There are several functions of a network topology It is actually in accordance with the type of function that is sought to be fulfilled through the type of network topology that is used, that the functions will be able to be identified as such.

In this regard, it should be mentioned that these types of variables are going to be defined according to the factors that are to be treated, the number of machines that are interconnected, the type of access to the physical environment that they want to stay, among other aspects .


Characteristics of a network topology

  • Physical topologist Concept with which the actual arrangement of the machines is defined, the network devices, he cabling or the media in the network.
  • Logical topologist This is the way by which machines communicate through the physical environment. The most common are broadcast or Ethernet and the transmission of tokens or Token Ring.
  • Mathematical topologist They are maps of nodes and links, almost always forming patterns or geometric figures.

Types of network topology

The types of network topology they allude to the logical topology through which the interconnections between the nodes of the network are presented. It is a reference to a geometrical form or a logical form in which work stations are distributed and each of the means that connect them.


Ring topologist

It is only composed of a closed ring that is formed by nodes and links, where each node will have a single input and an output connection. They will only be connected to the two adjacent nodes so they will avoid collision failures


  • Equal access to information for all nodes or computers
  • Performance is maintained for more than several nodes work simultaneously
  • Very solid architecture


  • Difficult to diagnose problems and repair them
  • Intermediate stations to send files can see the data packet since they will necessarily have to go through them
  • Slow transmission

Double Ring Topologist

In a double ring topology there are two concentric rings, where each host in the network will be connected to the two rings, although the two rings will not be directly connected to each other. In other words, it is a topology similar to the ring one, but with the difference that in order to increase the flexibility and reliability of the network, there is a redundant ring to connect the same devices.


  • You can send data in both directions
  • It has redundancy (better fault tolerance)


  • It is more expensive than the simple ring topology

Tree topology

It is very similar to the extended star topology. In this case the central difference is that it does not have a central node. Instead of the above, there is a trunk link node, which is almost always occupied by a hub or switch, from where the other nodes or computers branch. It is a variation of the bus network with the difference that a failure in a node does not mean the total interruption of communications.