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How to Become a Professional Network Engineer? Done with CCNA and CCNP

By admin
May 13, 2022
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The world is transforming into a global village, we all have heard that at some point. The mighty forces of the world are converging to help the vision of the global village become a reality. Have you ever thought about what is facilitating the converging of all-mighty things? If not, here’s the answer, it’s NETWORKING

The world is more closely knit than before and keeps on getting better with the help of networking. The growth of networking is taking over and opening various job avenues in the market as well. If you have a basic knowledge and are looking for upgrading your skills whilst accelerating your growth and improving your remuneration, SD-WAN  certification is just the course for you. The jobs being offered to SD-WAN professionals are up to  10 LPA. The job aspects are vast along with handsome packages, it is the need of the hour. Before we go any further we need to understand what is SD-WAN and what it covers.

What is SD-WAN?

SD-WAN stands for a software-defined wide area network. It is a virtualized service that establishes a connection and also extends enterprise networks over vast geographical areas.  

The four main characteristics of a defined WAN are :

  • The ability to support various connection types through wireless technologies. 
  • The ability to perform a dynamic path selection, for load sharing and possessing resilience. 
  • A lucid interface that is easy to configure and manage. 
  • The ability to support VNPs and third-party services. 

Evolution of SD-WAN:

WANs have been crucial from their foundation itself, so to say, they were vital for the development of network technologies and often were hailed as the most important application for both military and enterprise applications. Their ability to communicate data over far-off geographical distances was the main driving force behind the development of data communications technologies since it aided the removal of limitations caused by distance. Not only this but it also aided the shortening the necessary time that was needed to exchange messages with other parties.


WAN technologies enable communications over circuits that connected two or more endpoints. Initial technologies supported point-to-point communication over a slowly speeded circuit, usually, that was positioned between two fixed places. With the evolution of tech, WAN circuits became faster and more flexible and efficient. Further innovations led to bringing about circuits, and packet switching that allowed more dynamic communications that helped ever-growing and progressive networks.

The introduction of the internet disrupted the conventional set-up of working, which was conservative in leasing and operating their WANs. To it added the National regulations that restricted companies that provided local service in each country, the complexity of arrangements was a given in order to establish truly global networks. This led to a huge growth of the internet which further allowed entities around the world to connect to each other. However, the unchecked and uncontrolled nature of the internet initially wasn’t considered safe for any kind of private corporate usage. 

As the internet grew in reach and private places started evaluating its usage and devising ways of leveraging it for private corporate communications. It was in the 2000s WAN based delivery became an unavoidable topic for research. 

Why do we need SD-WAN?

SD-WAN makes you capable of saving any enterprise from any internet outages. If any organization is vulnerable to internet outages, for instance, has had them in the past. Also if your business is mostly internet reliant you definitely need an SD-WAN engineer to mitigate any threats regarding internet outages.


Why SD-WAN now and not WAN?

SD-WAN is the need of the hour instead of the conventional WAN as the primary function of the traditional WAN  was to establish a connection between the users present at the branch to a server hosted applications in the data centre. To ensure security and unflinching connectivity. But as per this time’s need, this isn’t possible as the entire work now is cloud-centric.

The next most frequently asked question is :

What all is covered in SD-WAN?
As businesses adopt the employment of SaaS and infrastructure-as-a-service (IaaS) applications in multiple clouds, it’s realizing that the user application expertise is poor. that’s as a result of WANs designed for a distinct era that don’t seem to be prepared for the new explosion of WAN traffic that cloud adoption brings. That traffic causes management quality, application-performance unpredictability, and knowledge vulnerability.


Internet is an inevitable part of today’s business and opening up of internet to the former has often opened a gate to threats and also varied compliance issues. As important as it is to protect the vital assets of a business it’s equally challenging when applications are being accessed by different workforces, like employees, partners, contractors, guests etc. For the same enabling broadband on WAN makes security more acute creating challenges for IT users’ experience, complexity and security.
A worthy WAN connection is identified by a few features based on the functions it performs:


Resilience:
A resilient SD-WAN network will reduce network downtime. For the same, it should be able to identify and counter any outages.


Quality of service:
A good quality SD-WAN supports application-level awareness. 


Security:
SD-WAN communication is often secured by using IPsec referred to as a staple of WAN security.

Online traffic Engineering:
It elevates good online traffic by assigning new transfer requests, based on the current consumption of resources. 


Administration and troubleshooting:
An efficient WAN network also aids in troubleshooting whenever needed and also any technical administration issues as well.
On the whole, an efficient SD-WAN should possess all the technicalities and should have the ability to deter any outages of any kind, at whatsoever given time. The courses available for the same have a huge market and are consistently progressing as well. 
The certifications for SD-WAN are also revered enough and are steering the way for more professional avenues. The course ensures an LPA of about 6 to a fresher in the field. The future for SD-WAN is bright and seems to grow as well. The longevity of SD-WAN as certification is quite assured as far as the eye can see, based on research etc.  

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