SD-WAN vs MPLS: cost, performance and security compared for 2026

What is the difference between SD-WAN and MPLS?

MPLS routes traffic through a provider’s private backbone using label-switched paths, delivering guaranteed bandwidth and low jitter. SD-WAN creates an encrypted software overlay across any available transport, including broadband, dedicated internet and 4G/5G, routing traffic dynamically based on application priority and real-time link conditions. SD-WAN typically costs 30 to 50 percent less than MPLS for multi-site organisations and adds built-in encryption that MPLS lacks.

MPLS served European mid-market organisations well for two decades. Dedicated circuits, predictable latency, carrier-backed SLAs. For internal client-server applications running between a handful of offices, it was the right tool.

That environment no longer exists for most organisations. Traffic now flows to SaaS platforms, cloud infrastructure and remote workers scattered across locations that never had an MPLS circuit. Backhauling that traffic through a central data centre before it reaches the internet adds cost and latency without improving security.

This guide compares MPLS and SD-WAN across the three dimensions that matter most to IT managers evaluating a migration: cost, performance and security. It also explains why the real comparison in 2026 is not SD-WAN versus MPLS, but SASE versus the legacy stack that MPLS anchors.

SD-WAN vs MPLS at a glance

The table below compares MPLS, standalone SD-WAN and SD-WAN delivered as part of a SASE platform. The third column matters because most new SD-WAN deployments in 2026 are bundled with security services. Gartner estimates that 60 percent of new SD-WAN purchases will be part of a single-vendor SASE offering.

For a deeper look at how SD-WAN technology works under the hood, our complete SD-WAN guide covers architecture, traffic steering and deployment models.

Cost: why MPLS is losing the budget argument

The price gap between MPLS and internet-based connectivity varies significantly across Europe. TeleGeography research shows that median 100 Mbps MPLS port prices run roughly seven times higher than equivalent business broadband. In competitive fibre markets like Rome, the gap narrows to around three times. In cities with less infrastructure competition, MPLS can cost more than 20 times the broadband equivalent.

For a mid-market organisation running 10 sites, the three-year total cost of ownership tells the story clearly.

That is a 40 percent reduction before factoring in the cost of separate firewalls, VPN concentrators and web gateways that MPLS organisations still need at every location. When SD-WAN is delivered within a SASE platform, those point products disappear from the budget entirely. Jimber’s transparent pricing model bundles networking and security into a single, predictable cost per user, which eliminates the hidden charges that make legacy architectures expensive to maintain. For more on why fragmented security stacks inflate costs, read about the true cost of downtime.

One nuance worth noting: organisations that purchase managed SD-WAN through a single provider often pay a 20 percent aggregator markup on the underlying internet circuits. That markup covers multi-ISP coordination, consolidated billing and carrier management. For small IT teams, that trade-off is usually worthwhile. The total still lands well below MPLS.

Performance: when guaranteed QoS still matters

MPLS delivers something the public internet cannot: deterministic performance backed by financial SLAs. Latency below 10 ms, jitter below 2 ms, packet loss below 0.1 percent. For the right workloads, that guarantee still has value.

The question is how many workloads actually need it.

For financial trading platforms or specialised medical imaging systems that require sub-2 ms jitter, MPLS remains the better transport. But those workloads represent a small fraction of mid-market traffic. Microsoft Teams, Zoom, Salesforce, cloud-hosted ERP. For these applications, SD-WAN over a quality dedicated internet access link is indistinguishable from MPLS to the end user.

SD-WAN compensates for internet variability through several self-healing mechanisms. Forward Error Correction sends parity packets that let the receiving end reconstruct lost data without retransmission. Packet duplication sends identical traffic across two links simultaneously, a technique often applied to mission-critical voice calls. Application-aware routing continuously measures link quality and steers traffic to the best-performing path in real time.

There is also a reliability argument that favours SD-WAN. MPLS is a single-carrier solution. If the provider’s backbone goes down, the site goes dark. SD-WAN’s multi-transport approach, combining fibre from one ISP with 4G/5G from another, delivers higher aggregate availability than any single MPLS circuit.

Security: the gap MPLS does not close

MPLS is private. It is not encrypted. Traffic on an MPLS circuit typically travels in clear text. The assumption is that because the circuit is isolated from the public internet, encryption is unnecessary. That assumption breaks the moment an attacker gains access to the provider’s core infrastructure or compromises the local loop.

SD-WAN encrypts all traffic by default using AES-256 tunnels, regardless of whether the underlay is a private circuit or public broadband. That alone closes a significant gap. But encryption is only the starting point.

Standalone SD-WAN encrypts traffic between sites. It does not inspect that traffic for threats. It does not enforce access policies based on user identity. It does not prevent lateral movement if an attacker breaches a branch office.

This is where the distinction between standalone SD-WAN and SD-WAN within a SASE framework becomes critical. A SASE-integrated SD-WAN adds Firewall-as-a-Service for deep packet inspection, a Secure Web Gateway for web threat blocking, and Zero Trust Network Access that grants each user access only to the specific applications their role requires. A compromised device at one site cannot scan the network or reach systems at another site, because the network is invisible to it. For a detailed explanation of why VPN architectures fail modern teams, that post covers the architectural limitations.

Jimber’s SASE platform delivers SD-WAN with all of these security layers built in. Encryption, inspection, identity-based access and device posture checks operate from a single console with unified policies. There is no separate firewall appliance to configure at each site, no standalone VPN concentrator, no disconnected web gateway. For organisations that also run agentless devices such as printers, IoT sensors or industrial machines, NIAC hardware extends that same Zero Trust model to equipment that cannot run a software agent.

Why SD-WAN in SASE replaces more than just MPLS

The real savings from migrating away from MPLS are not just in circuit costs. They come from eliminating the entire legacy stack that surrounds it.

A typical MPLS-based architecture includes dedicated circuits at every site, a firewall appliance at every site, a VPN concentrator at the data centre, a separate web filtering solution and, often, a standalone SD-WAN overlay layered on top. Each component has its own management console, its own licensing model and its own vendor relationship. Jimber customers call this the “Frankenstack”. Read more about escaping the Frankenstack and what consolidation looks like in practice.

SD-WAN delivered within a SASE platform replaces that entire collection. Jimber unites SD-WAN, Zero Trust Network Access, Secure Web Gateway and Firewall-as-a-Service in a single cloud-managed platform. Policies are defined once and enforced across all users, devices and sites. New locations connect in days, not months. The operational overhead drops because there is one console, one policy engine and one vendor.

For organisations evaluating how the components fit together, the SASE architecture guide explains the data flow, deployment models and where each security function applies. The comparison between SASE, SSE and SD-WAN clarifies which approach fits which organisational profile.

This consolidation also simplifies NIS2 compliance. The directive requires documented risk management, access controls, incident reporting within 24 hours and supply chain security assessments. A unified platform with centralised logging, policy versioning and audit trails provides the evidence that inspectors expect. Separate appliances scattered across sites make that evidence gathering slow and incomplete.

How to migrate from MPLS to SD-WAN

Migration is not a switch flip. For a 10-site organisation, expect a 4 to 6 month timeline with a phased approach that avoids business disruption.

Step 1: audit current circuits and applications

Document every MPLS circuit, its contract end date, bandwidth and what applications depend on it. Map application dependencies to understand which traffic is latency-sensitive and which is not. This inventory drives every decision that follows.

Step 2: baseline current performance

Measure latency, jitter and packet loss on existing MPLS links. These numbers become the benchmark against which you evaluate SD-WAN performance during the parallel run. Without a baseline, you cannot objectively assess whether the new solution meets requirements.

Step 3: deploy SD-WAN alongside MPLS

Install SD-WAN edge devices at each site while keeping MPLS circuits active. Jimber’s cloud-managed platform supports zero-touch provisioning, so devices shipped to a remote office can pull their configuration automatically the moment they connect to the internet. No engineer needs to travel to the site.

Step 4: order internet connectivity

Provision dedicated internet access or high-quality business broadband at each site. Fibre lead times in Europe can still be 60 to 90 days, so start this step early. 4G/5G can serve as interim or backup connectivity where fibre is not yet available.

Step 5: offload non-critical traffic first

Route web browsing, SaaS applications and guest Wi-Fi over the SD-WAN overlay while keeping ERP, VoIP and other sensitive applications on MPLS. Monitor performance against the baseline.

Step 6: full cutover

Once internet-based paths prove stable and meet performance thresholds, migrate remaining traffic to the SD-WAN overlay. Keep MPLS as a fallback for 30 to 60 days before decommissioning.

Step 7: optimise and expand

Use SD-WAN analytics to fine-tune QoS policies based on actual usage patterns. Connect additional sites, remote workers and cloud environments. With Jimber, adding a new site takes days rather than the weeks required for MPLS circuit provisioning.

For organisations already running multi-cloud environments, the SASE for multi-cloud guide covers how SD-WAN within SASE handles traffic routing across AWS, Azure and on-premises infrastructure.

Frequently asked questions

Can SD-WAN fully replace MPLS?

For the vast majority of mid-market organisations, yes. SD-WAN over dedicated internet access delivers performance that is indistinguishable from MPLS for standard business applications including voice and video. The exceptions are niche workloads that require sub-2 ms jitter with financial SLA backing, such as high-frequency trading or real-time industrial control systems. Even in those cases, SD-WAN can run alongside a single retained MPLS link for the specific traffic that needs it.

Is SD-WAN cheaper than MPLS?

Consistently, yes. European organisations migrating from MPLS to SD-WAN report TCO reductions of 30 to 50 percent on connectivity alone. When SD-WAN is delivered within a SASE platform like Jimber, the savings increase further because separate firewall, VPN and web gateway costs disappear.

Does SD-WAN provide the same QoS as MPLS?

Not in the same way. MPLS guarantees QoS through dedicated bandwidth on a private backbone. SD-WAN achieves comparable results through application-aware routing, Forward Error Correction and packet duplication over best-effort internet links. For 95 percent of mid-market workloads, the practical difference is negligible.

What is the difference between SD-WAN and SASE?

SD-WAN is a networking technology that optimises traffic routing across wide area networks. SASE is a broader framework that combines SD-WAN with integrated security services including Zero Trust Network Access, Secure Web Gateway and Firewall-as-a-Service. Think of SD-WAN as the connectivity layer and SASE as the complete platform. Jimber delivers SD-WAN as part of its unified SASE platform, so organisations get secure connectivity and security policy enforcement from a single console.

How long does an MPLS to SD-WAN migration take?

For a 10-site organisation, plan for 4 to 6 months. The longest lead time is usually internet circuit provisioning (60 to 90 days for fibre in parts of Europe). The SD-WAN overlay itself deploys in days per site with zero-touch provisioning.

Does SD-WAN meet NIS2 compliance requirements?

SD-WAN alone does not satisfy NIS2. The directive requires access controls, encryption, incident reporting and supply chain risk management. SD-WAN within a SASE framework provides the centralised logging, identity-based access policies and audit trails that NIS2 compliance demands. Platforms like Jimber, built in Europe and aligned with GDPR and NIS2, give organisations the compliance evidence and data sovereignty assurance that US-headquartered alternatives cannot guarantee by default.

MPLS contracts are expiring across Europe, and the economics of renewal are hard to justify when internet-based alternatives deliver comparable performance at a fraction of the cost. But replacing MPLS with standalone SD-WAN only solves half the problem. You still need firewalls, web filtering, VPN and access controls at every location.

Jimber’s SASE platform replaces the entire legacy stack. SD-WAN, Zero Trust access, web security and firewall policies, all managed from one console with transparent pricing and no hidden complexity. Book a demo to see how Jimber simplifies the migration from MPLS to secure, cloud-managed connectivity.