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Word on the street is that SASE (Secure Access Service Edge) is here to replace MPLS VPN (multiprotocol label switching virtual private network), like streaming services made cable TV less relevant. And sure, SASE has all the modern perks: built-in […] The post SASE Isn’t Here To Replace MPLS VPN, Despite What You’ve Heard appeared first on Lumen Blog.
Analysis Summary
# Industry News: SASE and MPLS Coexistence: The Rise of Hybrid Connectivity
## Summary
A recent industry insight article dispels the notion that Secure Access Service Edge (SASE) is a direct replacement for traditional Multiprotocol Label Switching (MPLS) VPNs. Instead, the analysis suggests that modern enterprise networking requires a symbiotic, hybrid approach where SASE enhances the reliable backbone provided by MPLS, offering combined flexibility, performance, and robust security.
## Key Details
- Date: Announced/Discussed on April 11, 2025 (Based on article date)
- Companies Involved: Lumen (Author/Publisher, suggesting a service provider perspective)
- Category: Market Analysis / Technology Trends
## The Story
The article addresses a common misconception in the networking sector: that SASE is poised to eliminate MPLS VPNs entirely. While SASE offers significant advantages, such as cloud-native flexibility and integrated security necessary for modern workloads and remote access, the underlying infrastructure still benefits from the guaranteed performance and stability of MPLS. The key narrative shifts towards the necessity of **hybrid connectivity**, where MPLS acts as the reliable private backbone, and SASE components are layered on or integrated to provide superior, agile security and access management across both private and public network components.
## Business Impact
### For the Companies Involved
- **Lumen (and similar carriers):** Positions the company to sell integrated solutions rather than forcing a complete rip-and-replace. This supports a phased migration strategy, catering to enterprises that require MPLS contracts or specialized performance guarantees.
### For Competitors
- Competitors focusing solely on pure SASE offerings may struggle to address legacy enterprise environments heavily invested in high-assurance MPLS circuits. Those offering integrated hybrid platforms gain a competitive edge in serving the transitionary market.
### For Customers
- Enterprises are offered a less disruptive upgrade path. They can leverage existing MPLS investments for core guaranteed traffic while layering SASE for distributed and cloud-based security and access, potentially reducing immediate CapEx/OpEx associated with a full network overhaul.
### For the Market
- Confirms the trend toward practical, multi-faceted networking architectures rather than a binary shift favoring one technology over another. The market appears to be settling on optimized hybrid models that extract the best features from established and emerging technologies.
## Technical Implications
The core technical implication is the validation of **network orchestration** capabilities required to seamlessly integrate MPLS's deterministic routing with SASE's distributed, cloud-based security stack (e.g., SWG, CASB, ZTNA). This requires sophisticated policy management that can steer traffic optimally based on application needs (e.g., prioritizing critical internal applications over MPLS while securing external SaaS traffic via SASE points-of-presence).
## Strategic Analysis
- Market Positioning: This positions established carriers as necessary bridge builders between legacy infrastructure and future cloud-centric networking, emphasizing continuity and service evolution rather than radical replacement.
- Competitive Advantage: The ability to manage the "hybrid sweet spot" provides an advantage to providers with extensive global MPLS footprints coupled with modern SASE orchestration tools.
- Challenges: Managing the complexity of policy enforcement across two distinct network fabrics and ensuring unified performance visibility remains a significant integration challenge.
## Industry Reactions
- Analyst opinions likely support this nuanced view, recognizing that large, compliance-heavy organizations (like finance or regulated manufacturing) will not abandon performance-guaranteed private circuits rapidly.
- Market response suggests ongoing investment in SD-WAN/SASE overlays capable of integrating natively with existing transport layers like MPLS.
## Future Outlook
- Expect continued product development focused on **unified management platforms** that treat MPLS connections as just another transport option within a broader SASE framework.
- We will likely see more vendors positioning their primary offering as "SASE converged with private backbone services," rather than "SASE replacing everything."
## For Security Professionals
Security teams must understand that securing the hybrid environment means maintaining security policies consistently across both the private MPLS underlay and the SASE overlay, especially concerning data ingress/egress points and identity verification mechanisms tied to both environments.