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Network Infrastructure Magazine | Friday, January 07, 2022
SD-WAN technology enables enterprises to utilize less expensive connectivity options than MPLS. A company can adapt the type of WAN connection it uses in response to changes in traffic volumes.
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FREMONT, CA: It is vital to have consistent and secure access as remote work becomes more widespread and employees connect outside the corporate network. This can be a dilemma for enterprises, mainly when devices become increasingly scattered across numerous locations. Cloud-based services, applications, and platforms exacerbate issues further, as employee networks may struggle to deliver the required flexibility, scalability, and installation speed.
SD-WAN, a virtual overlay solution for an existing WAN, is one way to address these issues. SD-WAN connects Software-Defined Networking (SDN) to fixed and mobile transport networks to give a holistic solution.
SD-WAN gives intelligence to the network, real-time monitoring and administration of network traffic, and maybe a more cost-effective alternative to traditional networking. It helps a business respond quickly to changes in the environment and external threats.
Several security advantages of SD-WAN include the following:
Centralized and scalable security: The controller of an SD-centralized wide area network (WAN) can specify security policies that apply to the entire network. Businesses can create and distribute security policies that are centrally enforced and monitored throughout their business.
Without interfering with the network's regular operation, the centralized controller enables companies to filter and prevent hazardous traffic. Suspicious behavior can be automatically routed and reported to administrators. Businesses can develop, control, and enforce security policies on a broad scale to accommodate organizational changes and expansion and the delivery of new applications.
Prioritization of traffic from distant places: SD-WAN can prioritize traffic from remote areas by routing phone or video traffic through low-latency, high-bandwidth connections (such as MPLS) and sending less time-sensitive data over less expensive local internet.
Businesses can construct a WAN by integrating several network connections, such as private circuits, mobile networks, and internet connections. This enables them to determine whether the connectivity used is appropriate for the transferred data.
Operation and segmentation without touch: Businesses can swiftly bring a new branch or remote site online with zero-touch provisioning. Human error is minimized since whenever a policy is created or amended, it is promptly sent to all SD-WAN-connected devices.
Businesses can establish regulations governing which programs, such as the CRM system, cloud-based apps such as Office 365, or real-time traffic such as VoIP, may be used in the workplace. Firms can control segmentation strategies that adapt dynamically to network changes from a single pane of glass.
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