What to Avoid While Deploying SD-WAN?
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What to Avoid While Deploying SD-WAN?

By Enterprise Networking Mag | Monday, January 13, 2020

SD-WAN offers multiple benefits over previous iterations of network technology, including the capability to meet growing bandwidth needs, faultlessly route traffic through dynamic path selection to shun congestion and bring faster delivery.

FREMONT, CA: The introduction of software-defined WAN (SD-WAN) comes with promises to elevate the standard of the then-current MPLS by delivering a high-quality network that removes the infrastructure redundancies and alleviates the recurring issues of cost and network scalability.

Organizations have started to implement this SD-WAN network option in droves as an agile and cost-effective solution to conventional MPLS. But to implement high-performing network infrastructure such as SD-WAN, a business needs to be familiarized with the missteps that come with planning and deployment first, to protect its network against any threats.

The most significant mistake while planning or deploying SD-WAN is in focusing on network system isolation instead of integration. It means, oversimplifying the technology and assuming the solution to be a plug-and-play alternative for existing network technology. SD-WAN is a cost-effective superimposing connective technology, which means the organization must update any underlay networks to get along with the solution. IT should also address the underlying network issues before deciding to implement SD-WAN.

A few organizations place SD-WAN as a network in itself, but most SD-WANs make use of a combination of Internet connections, with MPLS and 4G as basics. The SD-WAN overlay allows application-aware routing through policy.

In substituting traditional network technology, implementation becomes increasingly complicated, causing enterprises to begin from square one rather than building upon a reliable network system base that works at length with SD-WAN. It results in bandwidth shrinking, network congestion, and aggravated organization leaders, IT managers, and staff. It could also bring gaps in the entire network security by compromising the data that is stored in the original network technology, leading to more severe complications for an organization.

To prevent any crippling SD-WAN deployment disturbances, IT teams should educate every employee from the C-suite on down to staff on the utilization process and the imperative of keeping existing network technology, along with adding SD-WAN, rather than replacing it. If an organization understands the backdrop and working of the technology, there can be enough buy-in and support from management, who otherwise might consider SD-WAN as a simple alternative for the previous network technology. The process needs to originate with the application front and center rather than the network, as optimization of the app’s performance cannot take place unless important network characteristics are understood.

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