Gartner estimates that SD-WAN today has less than 5% market share. But, it predicts that up to 25% of users will manage their WAN through the software within two years. SD-WAN sellers’ revenues are growing at 59% annually. According to Gartner estimates, it is expected to become a $ 1.3 billion market by 2020.
SD-WAN is an acronym of Software-Defined WAN is defined as a program that simplifies branch networks and optimizes the performance of applications on the Internet and hybrid WAN. SD-WAN originate from software-defined networks, which unlink network-based software services from the underlying hardware.
SD-WAN is the third generation network, after IPsec (Internet Protocol Security) and MPLS (Multi-Protocol Label Switching). This technological breakthrough makes it easy for the following:
Why Corporate should use SD-WAN? This is a common question in the networking industry. We have listed the perfect reasoning for why businesses should use SD-WAN.
SD-WAN adoption is increasing rapidly because of its huge benefits
Below are the major benefits of SD-WAN businesses has experienced after using it:
SD-WAN can be used in different ways. We are going to discuss the basic deployment guide of SD-WAN. We also discuss advantages of deployment with the deployment guide.
Digital transformation is much more than moving workflows to the cloud and adopting the Internet of Things (IoT). It is about reorganizing the entire network to make it faster, more efficient, much more flexible and profitable. This means that it also includes incorporating agile software and application development. Rethinking access and integration, and creating dynamic and adaptable network environments.
With the growing trend of using cloud-based applications, the SD-WAN Deployment in companies becomes more relevant. Check out the Top 3 SD-WAN Deployment Consideration in 2019.
SD-WAN Deployment has many advantages, we will discuss few of them:
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Software-Defined WAN delivers great performance and exceptional experience for SaaS, cloud and virtual applications at all times. It also helps increase agility, reduces network costs and provides visibility into network performance.
Check out the complete details of the Top 5 SD-WAN Vendors globally, which includes their definition, features and uses:
Technology that makes up SD WAN is not new, the concept is formed by the “package” that makes it up. There are many SD-WAN Features, where as according to Gartner it has four characteristics:
When you start a day with a series of deliveries and to deploy a secure SD-WAN architecture. You need to have keys for deliveries and deployment of SD-WAN architecture. Here are the Keys that take into account aspects such as security and deployment. And how to segment applications for better control.
What is most interesting when deploying any architecture, whatever the type? Safety. It is a premium condition above all things, so it is vital to give it the attention it deserves.
So, in the case of SD-WAN, how can you not dedicate a few minutes before performing the desired deployment with this technology?
Because what is clear is that moving from a traditional WAN architecture to another defined by software (SD-WAN) results in an improvement in security. Especially in an environment where business agility is required for remote sites to run quickly.
A key value of SD-WAN is that it unifies secure connectivity in all transports without losing their independence. Therefore, it is not necessary to use a different security mechanism for different types of transport. Or, to depend on the transport provider for your secure network.
Also, another aspect to keep in mind: the network overlay can support a wide variety of security capabilities. That said, here are the main requirements that should be in each Software-Defined WAN security checklist.
And in the face of these investment needs and priorities, budgets are not shared equally. As IDC said in the session, it does for Digital Transformation, to migrate to public cloud services.
But all this requires increasing the connectivity, bandwidth, and performance of critical applications. Applications which run through these networks has a continuous act of balancing to respond to these needs when the budget does not grow.”
SD-WAN can perform a deep recognition of applications, which allows very granular control over how specific traffic is routed
Most companies today need for segmentation to isolate different types of traffic for regulatory reasons. For example, PCI data, or to provide their network segments to different business groups. Companies can address these needs in the same way that a service provider would use virtual routing and forwarding (VRF).
An SD-WAN solution will incorporate basic security features. Such as, a next generation Layer 7 firewall in edge devices. But, it will not necessarily be a first-class security solution. However, additional security services can be inserted in multiple locations as needed to provide all the security capabilities and business needs.
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Many companies have complex infrastructure in their branches, consisting of routers and WAN route controllers. Also, includes WAN optimizers, firewalls, and other components. It is expensive to buy and maintain and complex to administer.
Lerner estimates that an SD-WAN can be up to two and a half times less expensive than a traditional WAN architecture.
It is estimated that a WAN of 250 branches in three years costs 1.28 $ 5,000 in a traditional WAN architecture and only 452,500 with an SD-WAN deployment.
The ability to use routers is the biggest savings, along with staffing and a small decrease in router maintenance and support.
This ease of deployment, central administration, and reduced costs make Software-Defined SDN WAN an attractive option for many companies.
But if SD-WAN is so good, why is not it more ubiquitous? Many organizations have ASICs built as they control their WANs and LANs, which have long refresh cycles. Network engineers are also traditionally reluctant to drastic changes.
Software-Defined WAN is the answer to the reduction of costs compared to the traditional networks of the MPLS operators. Being able to achieve a reduction of up to 48% in the interconnections between offices or branches.
The benefits of SD-WAN are already a reality, and this is contrasted by Gartner, in its report where it is estimated that by 2019 it will be implemented in 30% of companies, in 2016 only 1% enjoy it.
MPLS networks generally offer highly reliable packet delivery. Internet links, on the other hand, often fail.
To compensate for this fact, many organizations that move completely to the SD-WAN choose to request multiple Internet links. These multiple internal links are from different providers to maintain the availability of “four nines” (99.99 percent) in the case of failure of the link.
The availability of applications and their performance depends, to a large extent, on the capacity of the network. The arrival of software-defined WANs has accelerated this capacity, but a new concern has also opened up that should not be dismiss by any company. Companies which thinks about its Digital Transformation, will surely thinks about SD-WAN security.
Organizations have raised their awareness of this problem and seek security in all technologies. Technologies that they implement in their organization, and it cannot be less in their Software Defined WAN networks.
Businesses are seeing how their business models change thanks to the use of innovative technologies. Today, 92% of companies, according to an IDC survey, consider Digital Transformation as one of the keys to their strategy.
This transformation involves reconsidering how business is running. But also, how businesses are increasing their growth. Applications, connectivity, have become key to developing daily activity. And therefore, all means must be put in place to guarantee users. Regardless of, where they are located, that they will be able to work with their data. And also their business applications, Quickly and safely.
“It is necessary to understand the possibilities of the third platform: cloud, big data, mobility and social.” Explains Ricardo Malhado, Senior Research Analyst of IDC, in the webinar “SD-WAN, how to guarantee your security?”.
It is in the third platform where is the global spending on ICT, and in the accelerators of innovation: robotics, IoT, cognitive systems, and augmented reality “.
However, there are also challenges. Challenges such as, “each pillar of the third platform is a factor of exposure to risk.” According to an IDC survey on business communications in which participants were ask about the main IT or network risk. Many said that, in the next two years, security was the most mentioned.
The concept of security perimeter has disappeared and the attack surface increases. The number of threats increases daily. Also, we assist in the professionalization of hacking and offer itself as a service. Whereas criminals who act as open source communities, share the threats collaboratively.
It is a global phenomenon that is increasingly difficult to combat. It changes the notion of business priorities.
The IDC numbers confirm the change in priorities, which is noticeable in just one year. “In 2016, the priorities of technological investment did not include security or virtualization of the network. In 2017 they were concerns within the top 5, “says Machado.
The greatest concern for the security of the network is due to an “urgent context regarding the need to be compliant with GDPR. While the investment in network virtualization is because companies realize that Networks are a barrier to achieve business objectives.
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SD-WAN and SDN are the small brothers of the networks defined by software. They are similar, both defines by software. But, SDN is intended for internal data centers in a headquarters. Whereas SD-WAN takes those similar software-defined concepts and decoupling the plane of control from the data plane to the WAN. “SDN is architecture, while Software-Defined Wide Area Network is a technology that you can buy,” explains Andrew Lerner, an analyst at Gartner.
Managing a WAN through the software provides useful benefits. Any problem is notified and can manage all your WAN through a single interface. Recently, making changes to the network configurations in the branches would have required the creation and installation. Installation of manual configurations probably a technician on the site to do so.
If a company decided to extend the teleconference to its branches, for example, the predefined bandwidth allocations would have to be restructured. It may be necessary to acquire more bandwidth, then program it and install it at each location in the branch.
Before the arrival of the SD-WAN, there was the switching of multiprotocol labels, better known as MPLS. Multiprotocol tag switching is a way to ensure reliable connections for real-time applications by establishing predetermined. And highly efficient routes once a packet enters the network.
Each of these technologies presents its pros and cons. Compilation of the most significant advantages and disadvantages of each you can decide which network traffic protocol technology. This technology is most convenient for the organizations. Check below SD-WAN vs MPLS what technology to choose.
When compared to MPLS, software-defined wan has more reliable and secure. As a technology experts we recommend SD-WAN as a better choice.
Pros of MPLS
Cons of MPLS
SD-WAN expands bandwidth and provides direct and efficient access to applications (corporate and in the cloud) and data. In addition, it allows to implement virtual services – both local and in the cloud – and considerably optimize operational automation.
Companies want to innovate, generate new services and new business models. And also reduce costs and can be more agile. Networks are increasingly complex and expensive to monitor. Also, their security is more complex and difficult to scale.
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