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An Overview of SD-WAN

SD-WAN is a software-based network that separates the control and management of an enterprise’s network from the actual network transport medium. This network helps organizations implement cloud computing strategies and reduce the overall attack surface. In this article, we’ll explore the different components of an SD-WAN architecture.

SD-WAN is a software-based network

SD-WAN is a software-based enterprise network that uses a wireless or broadband network to provide enterprise-wide access to cloud-based collaboration and apps. As a result, it can eliminate network bottlenecks in data centers and lower the price of network infrastructure. In addition, it offers improved security through cutting-edge VPNs, firewalls, and content filtering.

With automated policy-based frameworks that streamline IT governance and change management, SD-WAN helps IT departments to gain visibility into network operations. This enables them to learn more about SD-WAN and adapt it to meet business demands. In addition, SD-WAN can improve network responsiveness by prioritizing applications based on business needs. 

Network transport medium

SD-WAN decouples control and management of WAN hardware from the underlying network transport medium, resulting in a simplified management model. This method is based on virtualization technology and improves data center management. It also allows for centralized configuration and management.

This approach makes configuring and managing firewalls, virtual private networks, and remote client connectivity easier. This centralized management control simplifies WAN architecture and security while lowering equipment and labor costs. Traditionally, companies had to backhaul traffic from remote locations to data centers, requiring complex routing protocols.

SD-WAN is especially helpful to enterprises trying to cut their operating costs. As firms adopt cloud-based applications, the volume of data traveling over the WAN has increased, a significant source of using costs for organizations. SD-WAN reduces costs by reducing traffic on the backbone WAN and utilizing low-cost local Internet connectivity.

Facilitates cloud computing strategies

Adopting cloud computing strategies is becoming an increasingly popular business model, and SD-WAN can help companies make that transition. This new model allows organizations to deploy applications flexibly and agilely, enabling them to scale and adapt as their business changes. This approach can also help organizations improve the security of their data.

SD-WAN is typically managed through a centralized management interface that monitors SD-WAN traffic. It also allocates paths for applications according to their criticality. Additionally, SD-WAN can help organizations reduce their network costs by enabling them to optimize bandwidth for bandwidth-intensive applications.

Reduces the overall attack surface

Security is critical in a networked environment. SD-WAN reduces the overall attack surface by enforcing end-to-end encryption to prevent eavesdropping and improve performance. However, even with end-to-end encryption, the attack surface is still significant, especially if you have hundreds of thousands of branch offices. In addition, organizations must protect their data from unauthorized access in a geographically dispersed environment where the network is open to multiple service providers and domains.

SD-WAN introduces a unified platform and interfaces for WAN management. As a result, IT teams can control low-level packet control and WAN functions while simplifying branch office management. It also provides application-layer control over application service policies, ensuring that applications perform optimally. Additionally, SD-WAN allows enterprises to enforce security and QoS policies based on individual application requirements.

Improves QoS and QoE

SD-WAN is a new networking technology that supports differentiated services over a public WAN. It works by dynamically reconfiguring network devices at the edge of the network. It aims to address the reliability and high costs of guaranteed Quality of Service (QoS) WAN solutions. But it also presents several technical challenges. These include traffic engineering, essential to orchestrate network traffic among edge devices. It is also vital to ensure that all services remain available. One of the main benefits of SD-WAN is that it can provide rapid provisioning, which is essential for seasonal businesses. Additionally, SD-WANs can utilize direct Internet access and 3G/4G backhaul options. In addition to these advantages, management is increasingly pressing IT teams to deliver agility, more bandwidth, and increased security with SD-WAN

Jaxson henry
Jaxson henry
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