What are the benefits of the SD-WAN solution? Learn about the power of software-defined networks in the WAN.Maria Cruz Alcocer
According to IDC, most companies plan to choose their SD-WAN solution before the end of 2019. 90% of companies will adopt the cloud, be it as infrastructure, cloud applications or some cloud service. This is a great challenge. SD-WAN solutions can help you in this way.
In this article, discover the main benefits that a Cisco SD-WAN solution can bring to your company.
The flow of data and devices is exceeding the limits of traditional WAN architectures, which makes it almost impossible for networks to keep pace.
With the power of software-defined networks in the WAN, companies can improve performance, reduce costs and stay protected.
SD-WAN is a software-driven solution that directs traffic, maintains application performance and adapts to changing conditions without direct supervision of the IT director. SD-WAN is a technology that helps simplify this adoption of the cloud.
Next we will explain what SD-WAN is and how it helps companies to modernize their network, improve the user experience with applications, reduce costs and integrate with the cloud while increasing security.
How do you work in traditional architectures?
In traditional network architectures, the offices send all the traffic from the remote offices to the datacenter through an MPLS network provided by an operator. From the datacenter this traffic destined to the internet, goes through a centralized firewall. What’s happening? That with this massive adoption of the cloud what we are seeing is that between 50 and 80% of the traffic from these remote sites is destined for the cloud, therefore, it makes no sense to pass all this traffic through an architecture centralized firewall in the datacenter. On the one hand, we waste very expensive bandwidth resources and on the other hand, we are adding unnecessary latency to applications. All this influences the user experience.
A possible solution to this problem is to enable direct access to the Internet to each of the remote delegations and not have to pass this traffic through the datacenter. We can use fiber, adsl, 4G … which gives us a lot of flexibility. But this poses certain security risks to be taken into account, as well as certain operational and configuration complexity.
What is the solution?
The solution is SD-WAN, since it allows to optimize the experience of the applications that go to the datacenter through the MPLS but also allows to enable those accesses in each delegation.
What are the benefits of the SD-WAN solution?
1. Ease of operation and management.
Management from a simple and centralized console that can reside in the client’s facilities or in the cloud. This will provide us with simple workflows for configuration and for the detection and resolution of network problems.
2. Rapid site deployment and cost reduction.
SD-WAN allows automated provisioning of equipment and the independence of the transport layer. We comment on these two characteristics: self provisioning allows opening a new headquarters without displacing a technician, simply by connecting the equipment to the Internet, the equipment will self-provision in a few seconds. On the other hand, the independence of the transport layer, gives us the option of having a 4G connection from the first day and not having to wait for the operator to provide us with the requested MPLS or fiber access.
3. Optimization of the user experience.
SD-WAN chooses automatically and completely transparent for the user the transport that best suits the applications we are using. It takes into account parameters of latency, jitter, packet loss … Voice traffic that requires certain maximum latencies is not the same as video traffic, which is more permissive with latencies but requires packet losses Very low.
SD-WAN provides analytics and thanks to them we obtain a greater visibility of the entire network, of bottlenecks that we can have in each of the delegations and we will be able to optimize it and anticipate any problems that may arise in the future so that Do not impact our business.
4. Simplifies the process of migration to the cloud (IaaS / SaaS)
Optimization of applications and workloads.
It facilitates the integration with the cloud at two different levels. The first of them helps companies adopt infrastructure solutions as a service in the cloud, that is, move workloads to the public cloud, be it Amazon, Azure, Google Cloud … in a simple way. The second level refers to the optimization of applications in the cloud ie if companies want to adopt SaaS such as Office 365, Salesforce, Dropbox …
5. Protection against threats. Integrated security
SD-WAN integrates security in the routers that are located in the offices. Integrates security at the level of application firewall, IPS or intrusion protection system, URL filtering and Cloud security with Cisco Umbrella. Thanks to all this security functionality integrated in the router itself, we will be able to enable security in each internet access of each delegation.