Maintaining a high-quality network is vital for enterprise business productivity. An hour of downtime costs a company $300,000 in lost revenue, productivity and remediation expenses. SD-WAN can help improve application performance at remote sites by prioritizing mission-critical applications and ensuring they are routed over a reliable broadband Internet connection or 4G LTE cellular link. It also reduces IT costs through bandwidth optimization and provides simplified, centrally managed WAN architecture.

Cost-Effectiveness

SD-WAN enables a seamless onramp to the cloud, improves application performance, and delivers a high-quality user experience. As such, it can lead to increased productivity and customer satisfaction. Additionally, it can reduce IT costs. It is because it simplifies the WAN architecture, automates traffic steering in an application-driven manner based on business intent, and improves network security. SD-WAN offers better bandwidth efficiency and easy integration with cloud platforms, which makes it more cost-effective than traditional WAN technology. Additionally, it can support direct Internet access to cloud applications and provide security against threats from the Internet.

One of the key benefits of SD-WAN is its capacity to automatically identify and address performance issues brought on by connection or packet loss. It does so by deploying multiple redundant links that ensure the availability of critical data, and it uses policy-based routing to identify the best path for data. It helps eliminate the trombone effect and enables link bonding, increasing last-mile resilience and performance. Another benefit of SD-WAN is its automated zero-touch provisioning, making deploying new locations easier. This feature allows IT to deploy a new appliance in a remote location and have it call home for configuration, significantly reducing the time required to get new sites up and running. It can also help to minimize hardware and service costs.

Flexibility

A modern business network requires a high level of connectivity to support the anywhere, anytime experiences that employees and customers demand. But legacy WANs can’t keep this need, leaving them susceptible to outages and poor application performance. Organizations need a scalable, flexible and cost-efficient solution to address these challenges. And that’s where SD-WAN comes in. SD-WAN allows organizations to utilize various transport services — including basic broadband internet, LTE and MPLS — to connect users to applications. This flexibility enables organizations to reduce costs by avoiding over-provisioning expensive private circuits. Additionally, SD-WAN provides a path for traffic to travel over the public Internet in case personal network links go down or are congested, which reduces latency and increases performance.

In addition to providing a scalable and flexible connectivity solution, SD-WAN also improves security. It offers a wide range of security capabilities, including stateful inspection, next-generation firewalls, and malware protection that can be tailored to fit certain application policies. It helps prevent unauthorized traffic from entering or exiting the corporate network, protecting it against cyber threats. SD-WAN can also offload traffic from remote offices to local Points of Presence (POPs). It is beneficial because it allows for lower utilization of private circuits, which are often limited in bandwidth, and enables cloud migration without the need to backhaul traffic to a central data center.

Availability

When delivering the anywhere, anytime experiences today’s customers and employees expect, your network connectivity needs to be high-performing and reliable. It is why many enterprise organizations turn to software-defined wide area networking (SD-WAN). SD-WAN improves data transfer speeds by directing traffic to the best path based on policies configured by system administrators. Its real-time path monitoring evaluates load, packet loss, and latency to select the most efficient route without backhauling data to a central location. It improves application performance and provides a higher-quality experience for your users.

With SD-WAN, you can replace expensive plain old telephone service (POTS) lines and multiprotocol label switching (MPLS) circuits with affordable broadband connections. Its dynamic traffic routing uses less-expensive, low-performance network connections for general data traffic and saves bandwidth-hungry applications for MPLS. It can significantly reduce network costs while providing the same functionality as traditional MPLS networks.

Another cost-saving benefit of SD-WAN is its zero-touch provisioning. It enables your IT team to drop-ship an appliance to a remote branch office and automatically plug it in to set up and configure itself. It makes adding new locations and scaling your network easier without sending someone to reconfigure the hardware. It also improves the efficiency of your IT staff by freeing them up to work on more important projects.

Security

SD-WAN is a more robust and secure alternative to traditional networking technologies like MPLS circuits. It’s designed to prioritize mission-critical applications and use multiple routes across transport infrastructure, so network performance is always high. By centralized management, SD-WAN allows companies to set consistent network policies and achieve visibility and security at all locations. It is a significant advantage over traditional networking models that maintain separate monitoring tools for each device type, leading to configuration drift and increased complexity.

In addition to ensuring application performance is maintained, a centralized SD-WAN can automatically offload internet access at remote branches by directing traffic through local Points of Presence (POPs) or even the corporate data center. This results in lower costs and reduced latency. It also allows branch offices to connect directly to the cloud, which improves security and agility without sacrificing performance. A key component of an effective SD-WAN is a comprehensive security architecture that includes firewalls, anti-virus software, web filters, and a VPN. Many vendors provide these integrated capabilities in their SD-WAN solutions, simplifying the management process and eliminating the need for additional security devices. Zero Touch Provisioning (ZTP) is another feature that can simplify the deployment and maintenance of an SD-WAN. With ZTP, an appliance can be dropped shipped to the site without pre-configuration. It will automatically connect back to a centralized controller to verify its serial number, download its configuration, and join the overlay network – all done securely over encrypted connections.

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