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Network Infrastructure Magazine | Monday, February 20, 2023
As SD-WAN providers thrive on cost-effectiveness and throughput efficiency, they can partner with other network services and leverage some benefits of enhanced cyber security and cost-effectiveness.
FREMONT, CA: A Software Defined Wide Area Network (SD-WAN) distributes network traffic over a wide area network (WAN) using the concept of Software Defined Networking (SDN). Pre-configured policies determine how application traffic should route between branch offices and data centers using SD-WAN.
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Each device connected to SD-WAN receives policy information from a central controller. A zero-touch provisioning or low-touch provisioning feature of the software allows team members to remotely program network edge devices.
According to forecasts, the SD-WAN market will grow exponentially from USD 1.9 billion in 2020 to USD 8.4 billion in 2025. Research indicates a compound annual growth rate (CAGR) of 34.5 percent. A multitude of business benefits is driving enterprises to adopt SD-WAN solutions.
Businesses that are considering adopting SD-WAN solutions have many benefits to leverage.
WAN/LAN branch architecture: It is common for distributed organizations to have already WAN and LAN equipment installed in their branch offices. It may consist of WAN routers, firewalls, IP VPN, LAN switches, Wi-Fi controllers, and WAN optimization equipment.
Integrating SD-WAN into existing WAN and LAN infrastructures is possible, but each branch location usually requires its own administration interfaces.
Migrating to SD-WAN allows IT organizations to view and replace existing branch office network equipment. Branch offices can also benefit from SD-WAN's basic network security.
Ease in deployment and service provisioning: SD-WAN deployments should be zero-touch. SD-WANs with this feature often offer significant cost savings and should be carefully considered by vendors. New branch locations can be set up and run zero-touch provisioning without technical skills or special effort.
Partnering with other network service providers for application acceleration, path optimization, and security can increase SD-WAN providers' cost-effectiveness and throughput efficiency.
Centralized visibility and management: SD-WAN solutions should offer a single, central console providing visibility and control over SD-WAN connections and their health and quality. In this way, network teams can manage and customize network services based on the requirements of local branch offices and the core network.
As well as providing usage and demand metrics for on-premises networks, this console must also support cloud infrastructure and branch networks. The system should provide visibility into branch data output, applications using Internet bandwidth, quality of service (QoS) priority performance, and individual links.
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