Technology·7 min read·March 18, 2025

SD-WAN vs MPLS: Which Is Right for Your Business in 2025?

MPLS has been the gold standard for enterprise WAN for 20 years. SD-WAN is the challenger. Here is how to decide which is right for your organization.

The Core Difference

MPLS (Multiprotocol Label Switching) is a private network protocol that routes traffic through a carrier-controlled backbone. It offers guaranteed QoS and consistent latency — but it is expensive, inflexible, and slow to provision.

SD-WAN (Software-Defined WAN) is an overlay technology that intelligently routes traffic across any mix of connections — fiber, cable, LTE, or existing MPLS — based on real-time performance data.

Cost Comparison

|---|---|---|

\| MPLS	SD-WAN
Monthly cost (per site)	$800–$3,000	$200–$600
Provisioning time	60–90 days	1–2 weeks
Contract terms	3–5 years	1–3 years
Bandwidth flexibility	Low	High

When MPLS Still Makes Sense

You operate in countries where broadband quality is unreliable
You have latency-sensitive applications (real-time trading, medical imaging)
You require guaranteed SLAs for mission-critical traffic
Your compliance framework requires private network carriage

When SD-WAN Is the Better Choice

You have 3+ locations and want centralized management
You are adopting cloud applications (Microsoft 365, Salesforce, AWS)
You want to reduce WAN costs by 40–60%
You need faster provisioning for new sites

The Hybrid Approach

Many enterprises use both: MPLS for site-to-site traffic requiring guaranteed QoS, and SD-WAN to optimize cloud and internet traffic across broadband connections. This delivers the reliability of MPLS at a fraction of the cost.

Next Steps

The right answer depends on your locations, applications, and budget. Talk to a Fibi advisor for a free network assessment — we will map out your current WAN costs and show you where SD-WAN can save money without sacrificing performance.

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