MPLS vs Internet: Choosing the Right Network

Choosing the right network infrastructure is a critical decision for any business, directly impacting performance, security, and cost. For years, Multi-Protocol Label Switching (MPLS) was the gold standard for reliable enterprise connectivity.

However, the public internet has become a powerful and flexible alternative. This guide will break down the key differences between MPLS and internet-based networks to help you decide which is the right fit for your organization's needs.

What is MPLS?

At its core, Multi-Protocol Label Switching (MPLS) is a routing technique used by telecommunications providers to create private, high-performance networks. Unlike traffic that travels over the public internet, MPLS directs data along predetermined paths, essentially creating a private highway for your company's information. This approach offers a high degree of control and predictability.

• Private and Secure: MPLS networks are isolated from the public internet, providing an inherent layer of security. Your data travels on a dedicated circuit managed by a single provider.
• Quality of Service (QoS): It allows for traffic prioritization. This means critical applications like VoIP or video conferencing can be given precedence to ensure they run smoothly without lag or jitter.
• Reliable Performance: Because data paths are pre-engineered, performance is consistent and predictable. This results in low latency and minimal packet loss, often backed by carrier Service Level Agreements (SLAs).

What is the Internet?

The internet is the global system of interconnected computer networks that people use daily. Unlike the private nature of MPLS, it operates as a massive, public network where data travels over shared infrastructure from countless service providers.

• Public Infrastructure: It’s a decentralized network of networks. Your data travels alongside traffic from many other users and organizations, routed dynamically across the most efficient path available at that moment.
• Best-Effort Delivery: The internet generally operates on a "best-effort" basis. This means it doesn't natively prioritize one type of traffic over another, which can lead to variable performance, latency, and packet loss.
• Diverse Connectivity Options: Businesses can access the internet through a wide range of technologies, such as dedicated fiber, broadband cable, and wireless (LTE/5G), offering flexibility in speed, cost, and availability.

MPLS vs Internet: Key Differences

While both technologies connect your business locations, they operate on fundamentally different principles. Here’s how they stack up in key areas that matter to IT leaders.

Performance and Reliability

MPLS provides highly predictable performance. Because it operates on a private network with pre-defined routes, it delivers consistent uptime, low latency, and minimal packet loss, typically backed by a provider's Service Level Agreement (SLA).

Internet performance, by contrast, can be variable. As a public resource, it is subject to network congestion that can affect latency and reliability. While dedicated internet access includes SLAs, the data path itself is not as tightly controlled as with MPLS.

Security Model

The security approaches are fundamentally different. An MPLS network is private by design, meaning your traffic is isolated from the public internet. This creates an inherent layer of security without requiring additional encryption.

Internet connections are public and require extra security measures. To protect data in transit, companies must use technologies like VPNs or SD-WAN overlays to build secure, encrypted tunnels over the public network.

Cost Structure

MPLS circuits are generally more expensive. The higher cost reflects the private infrastructure and performance guarantees. On a per-megabit basis, MPLS bandwidth carries a significant premium over internet bandwidth.

The internet offers a much broader spectrum of cost-effective connectivity options. Businesses can often get significantly more bandwidth for a lower price, making it a more budget-friendly choice for many use cases.

Scalability and Availability

Internet access is nearly ubiquitous, available from a vast ecosystem of providers. This makes it faster and easier to deploy new connections, especially for geographically dispersed sites.

MPLS, however, is limited to a specific carrier's network footprint. Adding a new site can be a slower process and may not even be possible if the location is outside the provider's service area.

Benefits of Using MPLS

While we've touched on the core technical strengths of MPLS, its advantages extend into operational and business continuity benefits that are crucial for many enterprises.

• Simplified WAN Management: Because MPLS is a carrier-managed service, your provider handles the complex routing and network maintenance between your sites. This frees up your IT team to focus on strategic initiatives rather than day-to-day network troubleshooting.
• Single-Vendor Accountability: When performance issues occur, you have one provider to call. This eliminates the complicated and often frustrating process of diagnosing problems across multiple ISPs, which is common with internet-based WANs.
• Guaranteed Resource Allocation: MPLS provides dedicated bandwidth and computing resources for your traffic. This ensures that your connection isn't competing with other customers, providing a level of resource assurance that public internet services typically cannot match.
• Ideal for Legacy Systems: Many critical business applications, especially older ones, were built for the stability of a private network. MPLS provides the predictable, low-latency environment these systems require to function correctly without costly re-engineering.

Advantages of Internet for Businesses

The internet's public nature offers a different set of advantages that align well with modern, cloud-centric business operations and a distributed workforce.

• Optimized for Cloud Connectivity: The internet provides direct, efficient access to public cloud platforms like AWS, Azure, and Google Cloud. Unlike MPLS, which often requires costly and complex private connections to cloud environments, internet-based networks are built for the cloud from the ground up.
• Greater Provider Choice and Flexibility: Businesses are not locked into a single carrier's network footprint. This opens up a competitive marketplace of ISPs, allowing for better pricing, more flexible contract terms, and the ability to blend different connection types (like fiber and 5G) for redundancy.
• Foundation for Modern Technologies: The internet is the platform for innovation. Technologies like SD-WAN, which add intelligence and security to your network, are designed to work over public internet connections, giving you a clear path to network modernization.
• Enables a Distributed Workforce: In an era of remote and hybrid work, the internet is essential. It provides the universal connectivity needed to support employees working from anywhere, a scenario that traditional MPLS networks were not designed to handle efficiently.

Choosing Between MPLS and Internet

The right choice isn't about which technology is universally 'better,' but which one aligns with your specific business requirements. Here are the key factors to consider when making your decision.

Evaluate Your Application Needs

Start by analyzing the type of traffic your network will carry. If your operations depend heavily on real-time applications like VoIP or video conferencing, the Quality of Service (QoS) and low latency of MPLS are critical.

Conversely, if your business relies on cloud-based services (SaaS, IaaS), direct internet access is often more efficient. It prevents the need to backhaul cloud traffic through a central data center, which can create bottlenecks.

Consider Your Geographic Footprint

Your office locations play a major role. For businesses with sites concentrated within a single carrier’s service area, implementing MPLS can be a relatively simple process.

However, for organizations with geographically dispersed or international offices, the internet offers far greater availability. Sourcing internet connections is typically faster and more flexible than waiting for an MPLS circuit deployment.

Align with Your Budget

The financial trade-offs are clear. MPLS provides guaranteed performance at a premium price point, making it a significant operational expense.

Internet bandwidth offers a much lower cost per megabit, allowing you to procure more capacity for your budget. This makes it an attractive option if cost-efficiency is a primary driver.

Assess Your IT Management Capabilities

Finally, consider your team's resources. MPLS is a carrier-managed service, which offloads the responsibility of network upkeep and troubleshooting from your IT staff.

An internet-based WAN, particularly one enhanced with SD-WAN, requires active management. You must decide if your team has the capacity to handle this or if you will need a managed service provider.

Final Thoughts on MPLS and Internet

The decision between MPLS and the internet comes down to a fundamental trade-off between guaranteed performance and cost-effective flexibility. MPLS remains a powerful choice for organizations that require absolute reliability and security for sensitive, real-time applications.

On the other hand, the internet offers abundant bandwidth at a lower cost, making it ideal for cloud access and supporting a distributed workforce. Its universal availability provides agility that MPLS often cannot match.

Many modern enterprises no longer see this as an either/or choice. Instead, they are building hybrid networks, often using SD-WAN to intelligently route traffic over both MPLS and internet connections. This approach allows businesses to align the right connectivity type with specific application needs, balancing performance, security, and cost to create a resilient and efficient network infrastructure.

Need Help Managing Your Network? Lightyear Can Help

Whether you choose MPLS, internet, or a hybrid approach, Lightyear helps manage the entire process. By automating network service procurement, inventory management, and bill consolidation, we take the complexity out of your telecom infrastructure.

The hundreds of enterprises who trust Lightyear achieve over 70% time savings and reduce costs by more than 20%.

Schedule a demo or get started with our questionnaire today.

Frequently Asked Questions about MPLS vs Internet

Is MPLS becoming obsolete?

Not at all. While the internet offers more flexibility, MPLS remains essential for businesses that need guaranteed performance for critical applications. It provides a level of reliability for things like financial transactions or high-quality video that the public internet cannot always match.

How does SD-WAN fit into this comparison?

SD-WAN is an overlay technology that intelligently manages network traffic. It can route applications over the best available path, whether that's an MPLS circuit or an internet connection. It adds a layer of control and optimization to internet-based or hybrid networks.

Do I need a VPN if I'm using MPLS?

Generally, no. MPLS networks are private and isolated from the public internet, so traffic is inherently secure. Some organizations add VPN encryption for extra security to meet specific compliance requirements, but it is not typically necessary for basic data protection.