09.07.2020

Network Switch Principle

Today we are witnessing rapid changes, the source of which is the widespread digitalization of modern business – companies are actively using modern technology to gain competitive advantages.

In March 2016, Cisco introduced a new architecture for enterprise networks – Cisco Digital Network Architecture or Cisco Digital Network Architecture. What is the new architecture? What are its main features and differences? What tasks does it solve and what advantages does it have? These and many other questions will be answered in this article.

Figure 1 – Cisco Digital Network Architecture – Cisco DNA

In the context of digitalization, IT is becoming a key participant in the business process. A qualitative change in the role increases the importance of IT in the structure of the enterprise, but is not given free of charge – new requirements are presented to IT, which are often impossible to implement within the framework of familiar processes and technologies.

Speaking about the new requirements, the first thing to mention is the speed of IT processes. The main problem today is that IT does not keep pace with changes in the core business. The necessary changes are carried out too slowly, and the result of the changes is no longer relevant at the time of commissioning. Among the reasons can be called a low level of automation and efficient use of existing resources, as well as a high degree of complexity of both the infrastructure itself and the processes associated with it.

Another task that modern IT is designed to solve is the transparency of the processes taking place in the infrastructure and applications of the enterprise. Despite the long existence of various technologies for assessing the status of the network, such as, for example, SNMP or Netflow, these technologies, being a very effective way of obtaining statistics, do not have built-in tools for generating analytics. And even with external analysis systems, these technologies are not able to present a picture of what is happening in terms of business applications.

Do not forget about the requirements that arise at the interface between IT and the main business. Most clearly, this interaction was demonstrated by Gartner in the form of the concept of Bi-modal (Bi-modal) IT. One of the key features of this approach has become the already mentioned automation. In the case of the bimodal approach, we are talking about process automation not only within the IT department itself, but even more so when IT interacts with the business.

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