Why SD-WAN Is Taking Over Enterprise Networks?

When you have a distributed branch office network, which is the case for most organisations, the need of the hour is flexibility in the network infrastructure. As the number of business critical applications, virtual desktops, video conferencing platforms and VoIP increase across the remote locations for organisations so the organisations can no longer just rely on the traditional WAN infrastructure. It requires you to upgrade network bandwidth, but this is not cost efficient and CIOs are unable to prioritize mission-critical applications. In fact, traditional WAN does not let you manage the changing nature of applications and data, which are now mostly in hybrid cloud infrastructure. “With applications and data now residing everywhere, companies can no longer rely solely on a hardware-based network deployed inside their data centre to run their business. This new reality requires thinking of networking in a fundamentally different way,” explains Rajiv Ramaswami, VMware COO for products and cloud services. So how does a CIO manage this? CIOs now should look at SD WAN or Software-Defined WAN as an option to get more flexibility out of the WAN infrastructure and optimise every application running for best business practices.

Benefit of deploying SD WAN According to Citrix, which has developed the Citrix SD WAN solutions, “SD-WAN technology allows you to create a hybrid WAN architecture. It binds multiple MPLS, mobile, and broadband paths together to provide a single, logical, virtualized path that can dynamically adapt to network conditions.” SD WAN is being seen as the next generation alternative to WAN optimization. SD WAN is also called a WAN Virtualisation, lowers cost while adding flexibility to your traditional WAN infrastructure.”

SD WAN allows better user experience The reason why CIOs need to look at SD WAN is not just the lower cost of running the networks. SD WAN, which is a flavour of virtual network, automates network infrastructure functions such as maintenance, patching, and updating. It also increases uptime, improves service, and reduces costs.

Major SD WAN players in the market Currently, Cisco holds the largest share of the SD-WAN infrastructure market, due to its extensive routing portfolio that is used in SD-WAN deployments, as well as its Meraki offering and its August 2017 acquisition of Viptela. VMware, which in December 2017 purchased VeloCloud, holds the second largest market share in the SD-WAN infrastructure market, followed by Silver Peak, Riverbed, Aryaka, Nokia and Versa.

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