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Many experts and consulting companies expect the demand of SDWAN to cross billions within the next few years.
FREMONT, CA: Today, SDWAN is a significant development in business networking. Companies of all sizes look at this new wave of WAN technology as the ideal solution to traditional networks to connect remote offices to services stored in the data center and the cloud. Many experts and consulting companies expect the demand to cross billions within the next few years.
Types of SDWAN Deployment Models
1. Internet-based SDWAN
Internet-based SDWANs use equipment at each business site, either behind routers or as a branch link to the corporate network and to the Internet (SDWAN appliances can also collapse the typical branch stack by substituting appliances for WAN optimization and firewalls).
Network traffic is distributed over legacy MPLS connections or the internet, based on performance considerations and existing policies. While using the internet to supplement MPLS provides a low-cost, scalable and quick implementation alternative and makes it simpler for users to connect to Cloud or SaaS applications, the efficiency of the public internet is often visible, especially over longer distances and in areas of the world where the internet is not stable. Latency, packet loss, and jitter are intrinsic to the internet, and these problems are compounded by reach.
Internet-based SDWANs also leave the responsibility of handling WAN to IT, and businesses will still have to invest in WAN optimization and other technology to have a fully functioning network.
2. Managed Service SDWAN
For a controlled SDWAN service, the consumer pays the service provider to configure and provide access and any hardware that the service may need. The managed SDWAN is a value-added service that can come with service level agreements (SLAs). Still, the managed service is usually implemented using any of the same hardware to serve Internet-based SDWANs, which may typically depend on the public Internet for connectivity to cloud/SaaS services, ensuring the same caveats apply: application efficiency and user experience will suffer from greater distances.
3. SDWAN as-a-Service
Through SDWAN as-a-Service, SDWAN businesses acquire several cloud services today using a consumption model. Instead of building their own SDWAN utilizing the internet or getting a service provider to deliver the same infrastructure, next-generation networks integrate a private network's stability and efficiency with the availability, low cost, and fast rollout of the internet to provide a superior networking solution.
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