SD-WAN vs Traditional WAN Networking
When it comes to connecting multiple devices and locations with reliable, fast and secure network connectivity, traditional WAN networking has been the go-to solution for a long time. However, with the emergence of SD-WAN, organizations have started to re-evaluate WAN connectivity. In this blog post, we will provide a factual and unbiased comparison between SD-WAN and traditional WAN networking, including numbers and references, to help you make informed decisions that best align with your organization's networking requirements.
What is Traditional WAN Networking?
Traditional WAN (Wide Area Network) is a networking solution that connects multiple devices and locations across a large geographic area. Typically, traditional WAN networking involves the use of leased lines or MPLS (Multiprotocol Label Switching) circuits to connect devices such as computers, servers, routers or switches. With traditional WAN networking, the network architecture is often centralized, with all network traffic routed through a central data center.
What is SD-WAN?
SD-WAN (Software-Defined Wide Area Network) is a newer networking solution that uses software and virtualization technology to simplify network management and secure network traffic. SD-WAN enables organizations to manage network traffic and prioritize applications by leveraging software-based policies. With SD-WAN, organizations can use a combination of different types of network circuits such as broadband, 4G or 5G, and MPLS, to connect multiple locations.
Comparison between SD-WAN and Traditional WAN Networking
Cost
One of the most significant factors when it comes to networking is cost. Traditional WAN networking is often more expensive due to the use of leased lines and MPLS circuits, which can be costly. On the other hand, SD-WAN networking can be more cost-effective, as it enables organizations to use a combination of different types of network circuits, including low-cost broadband connections.
Performance
When it comes to performance, traditional WAN networking typically provides consistent, reliable performance due to the dedicated nature of leased lines and MPLS circuits. However, SD-WAN networking can also deliver reliable performance by leveraging broadband connections, which can provide high-speed connections with low latency.
Security
Security is always a top concern for organizations when it comes to networking. Traditional WAN networking typically relies on hardware-based security solutions, such as VPNs (Virtual Private Networks) or firewalls, which can sometimes be complex and challenging to manage. In contrast, SD-WAN provides software-based security solutions, which can be managed centrally and can provide advanced security features such as application-aware security policies.
Management and Scalability
Traditional WAN networking can be more challenging to manage, especially for organizations with a large number of locations. IT teams may need to manage several different types of network equipment, which can make the process more complex. SD-WAN, on the other hand, provides a centralized management platform that simplifies network management, making it easier to monitor and configure network connections. Additionally, as organizations grow and add more locations, SD-WAN can offer better scalability.
Conclusion
SD-WAN and traditional WAN networking both have their pros and cons. If you're looking for a cost-effective networking solution that's easy to manage, provides reliable performance, and advanced security features, SD-WAN might be the right choice for your organization. However, if you require dedicated and reliable performance, MPLS and leased line-based traditional WAN networking might be a better fit. Ultimately, it comes down to evaluating your organization's specific requirements and making informed decisions based on your needs.