Unwavering Resilience: The 5 Pillars Upholding MPLS's Dominance in Enterprise Networking
- Utpal Chandan
- Aug 9, 2023
- 2 min read
In the ever-evolving landscape of enterprise networking, Multiprotocol Label Switching (MPLS) continues to stand strong despite the buzz surrounding alternatives like SD-WAN and secure access service edge (SASE). This phenomenon can be attributed to several factors that collectively reinforce MPLS's relevance and position it as a dependable option for modern WAN infrastructures.

1. Mission-Critical Applications and Trust in MPLS: One of the primary reasons for MPLS's enduring presence is its track record of reliability and performance. Organizations have come to trust MPLS for applications that demand stringent quality-of-service (QoS) levels and low-latency connectivity. This is particularly vital for video conferencing, real-time communications, and media-rich collaborations where any disruption or delay can degrade user experience. MPLS's ability to offer dedicated and predictable paths for critical traffic makes it a preferred choice for ensuring consistent application performance.
2. Private, Stable, and Compliant Connectivity: Certain sectors, such as healthcare, finance, and defense, require more than just reliable connectivity. They demand robust security measures and compliance adherence due to the sensitivity of the data they handle. MPLS, with its inherently private connections and well-defined service-level agreements (SLAs), aligns seamlessly with the requirements of these industries. The reservations surrounding moving core applications and sensitive data to the cloud prompt businesses to retain MPLS for maintaining data integrity and safeguarding against potential breaches.

3. Harmonizing SD-WAN and MPLS for Optimal Performance: The rise of SD-WAN, while introducing flexibility and cost-efficiency, has not displaced MPLS; rather, it has led to their symbiotic coexistence. SD-WAN serves as a supplementary layer that handles less critical traffic while MPLS continues to serve as the primary network for mission-critical applications. This approach enables businesses to optimize their network architecture by leveraging SD-WAN's dynamic traffic routing capabilities for non-essential data, while relying on MPLS for guaranteed performance and predictable latency for crucial workloads.
4. Navigating Complexity Through Managed Services: While SD-WAN was expected to simplify network management, its implementation can inadvertently introduce complexity. The integration of multiple network layers, including SD-WAN overlays and existing MPLS networks, can lead to challenges in policy orchestration, network visibility, and security management. In response, businesses often turn to managed MPLS services provided by specialized vendors. These managed services not only ease the burden of network complexity but also allow internal IT teams to focus on strategic initiatives rather than operational intricacies.
5. Empowering Business Continuity with MPLS: The increasing occurrence of extreme weather events and unforeseen disasters underscores the importance of business continuity and disaster recovery. MPLS proves invaluable in this context due to its capability to establish dedicated routes for disaster recovery traffic. These pathways circumvent congestion on public networks, ensuring minimal disruption and data loss during critical moments. While SD-WAN offers agility in rerouting traffic, MPLS's reputation for dependability solidifies its role in facilitating quick and reliable failover mechanisms.
In a landscape where technological shifts are frequent, MPLS stands tall as a steadfast pillar of enterprise networking. Its historical reliability, versatility to accommodate diverse business needs, and complementary role alongside emerging technologies like SD-WAN contribute to its continued relevance. As organizations seek to balance performance, security, and cost-effectiveness, MPLS remains a resilient choice for maintaining stable, secure, and high-quality connections for mission-critical applications, thus solidifying its position in the future of networking strategies.
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