The world of enterprise IT is constantly evolving, and the traditional centralized networking model no longer meets the demands of modern businesses.

The COVID-19 pandemic accelerated this shift towards distributed computing, ushering in the era of distributed cloud networking. In this article, we'll explore the challenges in today's enterprise networking landscape and delve into the transformative concept of distributed cloud networking.

The current enterprise networking landscape: challenges aplenty

Before diving into the distributed cloud networking concept, it's essential to understand several of the key IT challenges enterprises currently face that arose because the post-pandemic world demands a highly distributed approach to user access, data management, and application deployment. A trifecta of transformational initiatives is replacing the centralized IT model:

• Cloud Application transformation: Enterprise applications are transforming into modern microservices that run across multiple public and private clouds. Flexibility, scalability, and resilience are the essential requirements. Businesses are moving away from on-premises data centers and embracing the scalability and adaptability offered by the cloud.
• Edge transformation: High-performance and latency-sensitive applications are relocating closer to the enterprise edge. This shift is particularly critical for applications like IoT that require real-time processing. Edge computing allows organizations to process data nearer to its source, reducing latency and enhancing the overall user experience.
• Workforce transformation: The work-from-anywhere model has become the new normal, prioritizing remote access and secure connections. Enterprises must adapt to this shift, where work can happen anywhere with an Internet connection. This necessitates a robust and flexible networking infrastructure capable of supporting remote work at scale.

The challenge lies in reconfiguring the Enterprise network to accommodate these changes effectively. Traditional hardware-centric approaches that rely on static routing and manual workflows are no longer adequate. It's time for a fundamental shift in how we think about and operate Enterprise networks.

Distributed cloud networking: A paradigm shift

Enter distributed cloud networking, the solution to the evolving needs of modern enterprises. Distributed cloud networking refers to the technologies and solutions that offer secure connectivity between public and private clouds, Enterprise sites/branches, and users/devices. What sets it apart?

• Software and as-a-service approach: Distributed cloud networking prioritizes a software and as-a-service delivery model. It emphasizes dynamic network policy reconfiguration over rigid, set-and-forget rules. It provides on-demand network and security service elasticity, eliminating the risk of under- or overprovisioning. With the help of Software-Defined Networking (SDN) and automation, enterprises can adapt to changing network conditions in real-time, optimizing both performance and security.
• Cloud integration: A core principle of distributed cloud networking is tight integration with cloud providers. This ensures that the network can seamlessly adapt to the ever-changing landscape of cloud services. As multicloud environments become the norm, distributed cloud networking provides the agility to connect and manage workloads across different cloud platforms.
• Opex over capex: A defining feature of distributed cloud networking is the shift towards operational expenditures (opex) over capital expenditures (capex). This cost model aligns with the need for flexibility and scalability. Instead of heavy investments in hardware, enterprises can subscribe to cloud-based networking services, paying only for what they use. This approach reduces upfront costs and allows for rapid scalability.

The market opportunity for distributed cloud networking

Now, let's address the golden question: what's the market opportunity for distributed cloud networking?

To understand this valuation, consider the spectrum of precursor technology markets converging into the three pillars within distributed cloud networking.

1. Unified secure access service edge (SASE): This facet connects edge locations, including remote users, retail branches, and various facilities, to the global network. Unlike previous solutions that bundled separate SD-WAN and security services edge (SSE) services, Unified SASE integrates SD-WAN and SSE into a cohesive and unified service, ensuring a seamless and secure connection.
2. WAN-as-a-service (WANaaS) for the middle mile: Distributed cloud networking is poised to replace traditional methods such as MPLS and managed service contracts. This transformation heralds a more agile and efficient middle-mile connectivity.
3. Multicloud networking: As applications continue to migrate to the cloud, the need for connecting workloads across multiple public clouds becomes pivotal. Currently, each cloud provider offers proprietary networking services. However, the future lies in standardized and platform-neutral services, ensuring interoperability and ease of use.

While it’s early days for distributed cloud networking, we already have our eye on 26 vendors that we see treading in the space..

While the potential for distributed cloud networking is vast, it's essential to consider the factors that will shape its growth over the next five years. Market drivers include the need for agility, security, and scalability, all of which are core to the distributed model. On the flip side, potential inhibitors could consist of resistance to change and the challenge of integrating these new solutions into existing infrastructures.

In conclusion, distributed cloud networking is not just a buzzword; it's the future of Enterprise networking. As the digital transformation journey continues, enterprises must adapt and embrace this paradigm shift's elastic, dynamic, on-demand capabilities. It's not merely about technology; it's about staying competitive, secure and agile in a rapidly changing world.

Mauricio Sanchez is senior director, enterprise security & networking research, at Dell'Oro Group

Sanchez joined Dell'Oro in 2020 and currently leads research at the intersection of Enterprise networking and security. This research has accelerated during the pandemic towards mobile and cloud-first secure networking solutions, including SASE/SD-WAN/SSE, cloud workload security/cloud native Application protection platforms, and distributed cloud networking/multicloud networking software [MNCS]. Additionally, Sanchez contributes to shaping the coverage of next-generation Enterprise networking architectures and service models.