Main Considerations for SD WAN Deployment from Jack prabha's blog

There are a number of factors to keep in mind when you are deciding whether to deploy SD-WAN and how to best go about it.

For example, would you prefer to manage it in-house or do you want it delivered as a service? Compared to managing it in-house, getting it delivered as a service is much faster to deploy and the provider will also manage it for you, so it may be more convenient.

Know more @ SDN vs traditional network

Also, consider whether to use an internet-based SD-WAN deployment or a global private network. Internet-based might be enough for your organization if your branches are in a local area and the internet is of a high quality, but it could bring issues for global SD-WAN deployments. In this case, you might want a global private network that provides a faster response time and increased security. 

Consider all the factors that will affect your decision when deploying SD-WAN. These include the size of your business, the locations of your branches, and how you will manage the network, all of which have an impact.

Spend time reviewing your current system to find out if deploying SD-WAN will be worthwhile. In many cases it is, but it is not always the best solution for every business, so you need to closely analyze your setup and work out the cost and productivity savings.