In practice, proprietary protocols are used to set up and manage an SD-WAN, meaning there is no decoupling of the hardware and its control mechanism.
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13 Facts About SD-WAN
1.
2.
Key application of SD-WAN is to allow companies to build higher-performance WANs using lower-cost and commercially available Internet access, enabling businesses to partially or wholly replace more expensive private WAN connection technologies such as MPLS.
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3.
When SD-WAN traffic is carried over the Internet, there are no end-to-end performance guarantees.
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4.
SD-WAN combines several technologies to create full-fledged private networks, with the ability to dynamically share network bandwidth across the connection points.
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5.
Networking publications started using the term SD-WAN to describe this new networking trend as early as 2014.
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6.
SD-WAN Gateways provide access to the SD-WAN service in order to shorten the distance to cloud-based services or the user, and reduce service interruptions.
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7.
SD-WAN Orchestrator is a cloud hosted or on-premises web management tool that allows configuration, provisioning and other functions when operating an SD-WAN.
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8.
SD-WAN communication is usually secured using IPsec, a staple of WAN security.
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9.
SD-WAN is a core component of secure access service edge solutions which incorporate network and security capabilities to more efficiently and securely connect distributed work environments to distributed applications located in data centers, cloud infrastructure, or delivered by SaaS services.
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10.
The goal of each is to accelerate application delivery between branch offices and data centers, but SD-WAN technology focuses additionally on cost savings and efficiency, specifically by allowing lower cost network links to perform the work of more expensive leased lines, whereas WAN Optimization focuses squarely on improving packet delivery.
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11.
An SD-WAN utilizing virtualization techniques assisted with WAN Optimization traffic control allows network bandwidth to dynamically grow or shrink as needed.
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12.
Cloud-based SD-WAN offers advanced features, such as enhanced security, seamless cloud, and support for mobile users, that result naturally from the use of cloud infrastructure.
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13.
Additionally, Nemertes Research describes the in-net side of the SD-WAN market, describing the go-to-market strategy of connectivity providers entering the SD-WAN market.
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