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What are the six necessary conditions for successful deployment of SD-WAN? for this question, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way.

SD-WAN is one of the most popular enterprise technology trends in recent years. Compared with MPLS, it has the advantages of easy management, cost saving and flexibility. The adoption rate of SD-WAN will continue to soar in 2020. In fact, IDC's research predicts that the SD-WAN market will grow at a compound annual growth rate of 40 per cent, reaching $4.5 billion by 2022. SD-WAN technology can eliminate multilink network complexity and reduce costs. If enterprises need to choose SD-WAN, they must take the time to conduct the necessary assessment and develop a strong deployment and operational plan before implementing a new SD-WAN implementation.

Each NetOps team should take the following six key steps to ensure a successful SD-WAN deployment:

1. Treat each site as a unique IT environment and evaluate it

The existing WAN connection at each branch office may vary between broadband, satellite, Internet, MPLS, or other available resources. Before deploying SD-WAN, the most important thing is to evaluate the circuits at each site to fully understand the connection costs and reliability that you can use. For example, some of the following assessment points: each location of the application, the day-to-day operation of the managed location is that WAN connectivity affects its performance, they rely on the cloud or the data center? Are they particularly dependent on broadband or MPLS? How to meet the performance requirements of each office and exceed the existing performance level while reducing costs?

2. View your application

There is no point in deploying SD-WAN if you do not support critical business applications correctly. When planning a new SD-WAN implementation, one of your first tasks should be to evaluate the use of protocols and applications. What does it say about your company's bandwidth and routing needs? By performing this step, you can develop SD-WAN solutions that meet your unique needs. In addition, take the time to classify applications from the beginning and consider the links that each application follows and their final connections. In this way, your new SD-WAN deployment will seamlessly route application-based routes through available links based on established policies.

3. Explore SD-WAN implementation options

After the evaluation, the next step is to decide to use the virtual server software SD-WAN and a set of hardware-based SD-WAN devices. For some companies, it is easier to cut costs by upgrading existing hardware to support the SDN capabilities that ship with SD-WAN. However, this does not apply in all cases, and using virtual SD-WAN appliances may be the most cost-effective option for locations that already host virtual machines.

4. Arrange your transportation plan

One of the most important aspects of pursuing a new SD-WAN implementation is to fully consider the transmission decision. Do you plan to direct most of the traffic to existing MPLS circuits and supplement it with broadband initially? Is it more meaningful to transition to mainly broadband WAN? What type of cloud services do you use now, and how do you integrate them into your deployment? Many of these decisions are based on how your business prioritizes traffic and the unique bandwidth requirements of each specific application. The transport method you choose will greatly affect the impact of the user experience, if any, as well as the cost savings of SD-WAN.

5. Understand your monitoring requirements and features

Before delving into it, you need to ensure that the NetOps team is able to establish performance benchmarks for the existing network, then verify that the new strategy works as designed, and continuously optimize SD-WAN performance, so that SD-WAN without visibility and control will eventually waste the promising ROI they originally deployed for production.

6. Run the pilot test

You cannot expect to "flip the switch" and deploy SD-WAN across your organization at once. The purpose of the pilot test is to observe and document unforeseen issues, determine whether you are using appropriate network access, and better understand how to optimize policy in a set of controlled locations and applications. From the results, you will know to take appropriate measures to improve the network to best suit your company's goals.

This is the answer to the question about what are the six necessary conditions for the successful deployment of SD-WAN. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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