# ♾️Replacing MPLS with SD-WAN | A Comparative Analysis🔄 In recent years, **SD-WAN (Software-Defined Wide Area Networking)** has emerged as a powerful alternative to traditional **MPLS (Multiprotocol Label Switching)** networks. While MPLS has been the go-to technology for enterprise WANs for decades, the rise of cloud computing, remote work, and demand for flexible, cost-effective solutions has made SD-WAN a more attractive choice for many businesses. This article will explore the key differences between MPLS and SD-WAN by comparing these technologies across critical areas such as **affordability**, **security**, **contract flexibility**, and more. ### 1\. **Affordability** MPLS circuits have long been known for their high cost, which can be a major limitation, especially for small and medium-sized businesses. These costs stem from the need to lease dedicated lines from service providers, with pricing often based on bandwidth and geographic scope. In contrast, SD-WAN is far more **cost-effective**. SD-WAN allows organizations to use **commodity broadband connections** (like fiber, DSL, or LTE) alongside dedicated lines for a hybrid approach. This ability to utilize lower-cost Internet connections while maintaining secure and reliable performance reduces the overall operational expenditure compared to MPLS. Businesses can significantly **cut networking costs** by avoiding expensive leased lines, especially in geographically dispersed locations. ### 2\. **AES Data Encryption** Security is a critical concern for any business, especially when handling sensitive data across wide area networks. While MPLS offers **reliable, private connections**, it lacks **built-in encryption**. For businesses that need end-to-end encryption, MPLS networks often require additional security protocols like IPsec, which can complicate the setup and increase costs. On the other hand, SD-WAN incorporates **Advanced Encryption Standard (AES-256 encryption)** by default, providing **built-in encryption** for all traffic over public or private connections. This feature ensures that data traveling across less secure broadband links is protected, making SD-WAN a more secure choice for modern businesses handling sensitive information. ### 3\. **Flexible Contracts** MPLS services typically involve **long-term, rigid contracts** with carriers, often locking businesses into fixed bandwidth and service levels for multiple years. Adjusting the service requires going through the carrier, leading to delays and increased costs. SD-WAN offers **flexibility** in both technology and provider choice. Organizations can easily scale their bandwidth needs up or down and switch providers without being tied to long-term contracts. This **agility** allows businesses to adapt their WAN to changing needs without the burden of multi-year agreements, reducing both costs and the complexity of maintaining the network. ### 4\. **Rapid Deployment** One of MPLS's greatest challenges is the **lengthy deployment process**. Provisioning new MPLS circuits can take weeks, sometimes months, as it involves coordinating with a carrier to install the infrastructure. This delay can hinder businesses in rapidly expanding environments or those that need to set up temporary sites. In contrast, SD-WAN enables **rapid deployment**, sometimes within **days**. By leveraging readily available broadband or 4G/5G LTE networks, SD-WAN can be deployed across multiple sites in a fraction of the time it takes to provision MPLS. This **speed of deployment** makes SD-WAN a perfect solution for businesses looking to expand quickly or respond to new market demands without waiting for infrastructure installation. ### 5\. **Carrier Redundancy** With MPLS, businesses are often tied to **a single service provider** for their network connectivity. If that provider experiences an outage, it can cause widespread disruption to operations. SD-WAN enables **carrier redundancy** by supporting multiple Internet Service Providers (ISPs) simultaneously. Businesses can combine broadband, LTE, and MPLS circuits into a single SD-WAN environment, ensuring **failover** and **load balancing** across different carriers. If one link fails, SD-WAN automatically reroutes traffic through other available paths, maintaining **high availability** and minimizing downtime. ### 6\. **Bring Your Own Connectivity (BYO Connectivity)** MPLS networks require organizations to rely on the provider's specific infrastructure, limiting options when it comes to connectivity sources. SD-WAN offers a **BYO connectivity** model, where businesses can mix and match any available WAN links, including public Internet, private MPLS, or cellular networks. This flexibility allows businesses to choose the **most cost-effective** or best-performing link at each location, optimizing network performance and cost savings. SD-WAN's **agnostic** approach to connectivity makes it highly adaptable to different environments and use cases. ### 7\. **Hybrid Networks** While MPLS has traditionally been used to connect remote sites with a hub-and-spoke model, SD-WAN supports the creation of **hybrid networks**. With SD-WAN, businesses can combine existing MPLS circuits with public broadband or LTE links to form a **hybrid WAN**. This offers the **best of both worlds**: the reliability of MPLS with the affordability and flexibility of broadband. Hybrid SD-WAN networks provide **improved performance** by intelligently routing traffic based on application priority, network conditions, and link availability. For instance, mission-critical applications can be routed over MPLS, while less sensitive traffic can be sent over broadband, ensuring **optimal efficiency**. ### 8\. **Quality of Service (QoS)** MPLS is known for its **predictable performance** and **Quality of Service (QoS)** capabilities. Businesses can prioritize certain types of traffic (such as voice or video) over others, ensuring that critical applications receive the necessary bandwidth to function effectively. SD-WAN takes QoS a step further by offering **application-aware routing** and **dynamic path selection**. SD-WAN devices monitor network conditions in real time and can automatically shift traffic to the most appropriate path based on **latency**, **jitter**, and **packet loss**. This intelligent traffic routing ensures that applications receive **high-quality service**, even over lower-cost broadband connections, matching (and often exceeding) MPLS performance in many cases. ### Wrap While **MPLS** remains a solid option for enterprise WANs, it is becoming increasingly clear that **SD-WAN** offers a more flexible, affordable, and powerful solution for today’s digitally transformed businesses. * SD-WAN’s **cost advantages** and **built-in encryption** make it an attractive alternative. * Its **rapid deployment** and **flexible contract options** provide businesses with the **agility** they need in today’s competitive environment. * The ability to implement **carrier redundancy**, support **BYO connectivity**, and build **hybrid networks** ensures that SD-WAN delivers **high availability** and **optimal performance**. * Lastly, with its **enhanced QoS** features, SD-WAN can easily handle the complex, latency-sensitive applications that businesses depend on. For organizations looking to modernize their network infrastructure while cutting costs and maintaining security and reliability, SD-WAN presents a compelling case to replace MPLS as the network backbone of choice. --- [Ronald Bartels](https://www.linkedin.com/in/ronaldxbartels/) ensures that Internet inhabiting things are connected reliably online at [Nepean Networks](https://www.linkedin.com/company/fusion-broadband-south-africa/) - the leading specialized SD-WAN Last Mile provider in South Africa. Learn more about the best SD-WAN in the world: 👉[Contact Nepean](https://nepeannetworks.com/company/contact-us/)✈️ --- %[https://hubandspoke.amastelek.com/cappuccino-a-day] --- %[https://bsky.app/profile/mastelek.bsky.social/post/3ltuo4z3kwk23]