SD-WAN vs MPLS: Which Is Right for Your SoCal Business?

If your business has multiple locations and you are evaluating how to connect them, you have probably encountered both SD-WAN and MPLS. The telecom industry has not made this comparison easy to understand — carriers with legacy MPLS infrastructure tend to talk up MPLS, and SD-WAN vendors tend to make MPLS sound obsolete.

The reality is more nuanced. Here is a straight comparison.

What Is MPLS?

MPLS (Multiprotocol Label Switching) is a dedicated private network connection that routes your traffic across a carrier private infrastructure — completely separate from the public internet. Your data travels on a path that is guaranteed, consistent, and never touches the public internet.

MPLS has been the enterprise standard for multi-location connectivity for over two decades. It delivers predictable performance, strong SLAs, and low latency — which is why industries like banking and healthcare that require consistent, secure connectivity still rely on it heavily.

The trade-offs: MPLS is expensive, takes weeks or months to provision, and does not scale easily. Adding a new location means waiting on circuit delivery and paying full MPLS pricing for that site. It is also not designed for the reality of modern workloads — where most traffic is going to cloud applications like Microsoft 365, Salesforce, or Zoom, not to your own data center.

What Is SD-WAN?

SD-WAN (Software-Defined Wide Area Network) is a technology layer that sits on top of whatever internet connections you have — broadband, fiber, LTE, or a combination — and intelligently manages traffic across them. It can prioritize voice and video traffic, route around outages automatically, and aggregate multiple connections for better performance and redundancy.

The key difference: SD-WAN runs over the public internet, but it manages that traffic intelligently. You can have two or three circuits at each location — from different carriers — and SD-WAN will route traffic dynamically based on performance and priority.

Cost Comparison

MPLS pricing for a mid-size SoCal business with 3–5 locations typically runs $1,500–$5,000/month or more depending on bandwidth. Provisioning time is 60–120 days per site.

SD-WAN using broadband and fiber circuits at the same locations typically runs $400–$1,200/month total, with provisioning in days to weeks. The savings are significant — often 50–70% over an equivalent MPLS footprint.

Performance Comparison

For latency-sensitive applications like real-time voice and video, MPLS has historically had an edge because the path is fully controlled. However, modern SD-WAN platforms with quality of service (QoS) policies and direct cloud breakout have closed that gap significantly for most workloads.

Where MPLS still wins: highly regulated industries with strict data sovereignty requirements, applications that cannot tolerate any variability, and environments where private network connectivity is a compliance requirement.

Where SD-WAN wins: businesses with heavy cloud application usage, multiple locations that need fast provisioning, businesses looking to reduce WAN costs significantly, and any organization using UCaaS or CCaaS platforms.

The Hybrid Approach

Many mid-market SoCal businesses are moving to a hybrid model — keeping MPLS for their primary data center or headquarters where performance is most critical, and deploying SD-WAN with broadband at branch locations where MPLS costs cannot be justified. This gives you the reliability where you need it and the cost savings where you can afford flexibility.

What Is Right for Your Business

The honest answer depends on your locations, your applications, your compliance requirements, and your current contract situation. A carrier-neutral advisor can model both options against your actual traffic patterns and give you a recommendation that is not biased toward whichever technology the carrier happens to sell more of.

Talk to a carrier-neutral advisor about your WAN options →