Does SD-WAN use MPLS?

Does SD-WAN use MPLS?
Comparing Traditional WAN vs SD-WAN architecture
SD-WAN can support MPLS but is increasingly preferred with public internet connections, offering better cost and flexibility for modern cloud-based needs.

SD-WAN technology can support MPLS as one of several types of connectivity. It is designed to be connectivity agnostic, meaning that service providers can offer support for MPLS, as well as internet service provider connectivity across 4G, 5G, and Ethernet leased line technology. However, it is not necessary to use MPLS in order to operate SD-WAN. In fact, many enterprise businesses prefer to use public internet access instead of MPLS to improve the security of their devices, users, and public cloud access.

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SD-WAN use with MPLS

SD-WAN use with MPLS is often implemented within an enterprise's hybrid WAN architecture as follows:

  • Where a business requires private layer 3 or layer 2 connectivity between selected sites or data centre locations
  • Where specific latency and jitter requirements are needed between two or more locations
  • Where the business remains in a contract at specific sites
  • Access to private cloud infrastructure from branch-office sites

In summary, many IT decision-makers now prefer to use SD WAN technology with internet connectivity, resulting in a decline in the usage of traditional MPLS services. However, while SD WAN can operate across the public internet, SASE (Secure Access Service Edge) and SSE (Security Service Edge) are perceived to offer greater security compared to standard MPLS services.

How SD-WAN is better than MPLS
SD-WAN can support MPLS but is increasingly preferred with public internet connections, offering better cost and flexibility for modern cloud-based needs. SD-WAN (Software Defined Wide Area Networking) is better than MPLS (Multi Protocol Label Switching) because the technology is more in-line with the needs of almost all modern Enterprise businesses.
Netify's SD-WAN & SASE Network Security BlogRobert Sturt

Related: How SD-WAN is an improvement on MPLS

SASE and SSE

SASE and SSE are essential in enabling remote users and branch offices to access cloud-based applications from any device, and can be used in conjunction with MPLS. However, it is important to note that the privacy provided by MPLS means that a public breakout is necessary to access internet-based applications.

Secure Access Service Edge (SASE) is SSE + SD-WAN (Access).
Secure Access Service Edge (SASE) is SSE + SD-WAN (Access).

Conclusion

Nowadays, deploying SD-WAN instead of MPLS only makes sense in specific use cases, as most enterprise businesses find that Software WAN services offer better cost and features. In other words, since most users require 24/7 internet access, MPLS is no longer a suitable technology.

Robert Sturt
Robert Sturt
Managing Director

Robert Sturt is a leading expert in SD-WAN and enterprise network solutions with extensive experience in telecommunications and network infrastructure. As a Forbes Business Council member and contributor to TechTarget, he provides strategic insights on network transformation and digital connectivity solutions. His expertise spans SD-WAN implementation, network security, and enterprise digital transformation initiatives.

Fact-checked by: Harry Yelland - Cybersecurity Writer, Netify

What to consider when moving from MPLS to SD WAN?
Switching from MPLS to SD-WAN requires balancing performance trade-offs, assessing security implications, evaluating ISP strategies and understanding potential cost savings based on regional pricing and operational needs. One of the most important considerations on the mind of IT Managers is what to expect when moving from MPLS to SD WAN
Netify's SD-WAN & SASE Network Security BlogRobert Sturt

Further Reading: Considerations for moving from MPLS to SD-WAN