SD WAN Part (4)

➡ As SD-WAN final part, I will mainly discuss the benefits of using SD-WAN in this article. There are totally six benefits. And I will explain these benefits one after one.
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1️⃣ Agility
Like the meaning of Agility, we can easily increase bandwidth of WAN links. As SD-WAN technology provides Zero-touch deployment, engineers just need to setup branch site tunnels from Centralized Management Cloud without going to branch sites.
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2️⃣ Cost Reducing
In SD-WAN technology, as operations can be deployed from Centralized Management Cloud, it can effectively reduce the operation costs of sending or assigning our engineers to branch sites. Normally in traditional network, we have to buy 500 console cables if we need to setup tunnels for 500 branches. But in SD-WAN, we don’t need to concern how many branches we need to setup. We can centrally manage these branches only from one place which is Centralized Management Cloud. Therefore, we can also reduce the cost of console cables.
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3️⃣ Security
In SD-WAN technology, site-to-site traffic is encrypted with IPSec tunnel encryption. Moreover, SD-WAN controller also provides the strong encryption by making renewal to tunnel keys at every predefined timer.
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4️⃣ Reliability
We can typically distinguish WAN links into Internet link, 3G/4G and MPLS. As Internet links cannot provide SLA service, we have to buy expensive MPLS links to get reliability. In SD-WAN technology, we can use load balancing as built-in feature and SD-WAN routers can perform link-state monitoring by using tftp protocol. So, we don’t need to concern about Reliability. Instead of buying expensive MPLS links for reliability in traditional network, we can save our business costs only buying four Internet links in SD-WAN technology. Moreover, we still get the same reliability as MPLS links.‍‍‍‍‍‍
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5️⃣ Performance
SD-WAN can provide all WAN links which are available to be load balanced. So, we can get the benefits of bandwidth increasement and better link performance.
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6️⃣ Security Feature
SD-WAN Technology becomes to integrate with some security features of Application Firewall, IPS, URL-filtering and DNS. In Branch sites, we can use specific security features provided by SD-WAN without using a separate firewall.
SD-WAN benefits are targeted for the purposes of Reliability and Cost Reducing.
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➡ To summarize, I would like to suggest that we can save our business costs and better reliability by changing our legacy traditional network to the SD-WAN technology.
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As our NEX4 SI, we are providing a better solution in implementing SD-WAN Features with our skillful professionals.Moreover, NEX4 also provides User and Admin Awareness Trainings to get easier understanding in implementing this edge technology.

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