Why Cloud Networking Is the Future of IT Infrastructure

The future of the cloud is bright. By 2024, more than 45% of IT spending will replace traditional networks with cloud solutions, driven by modern cloud networking.

What is cloud networking? Cloud networking uses a centralized third‑party provider to connect network resources, acting as a gateway for applications. Mastering this concept enables designing, configuring, managing, and fine‑tuning network resources in the cloud, including virtual routers, VPNs, firewalls, data connections, load balancers, virtual bridges, adapters, and more.

Through cloud networking, networks can support the cloud or be entirely cloud‑based . In cloud‑supported networks, the core infrastructure remains on‑premises while management, monitoring, maintenance, and security services run in the cloud (e.g., SaaS firewalls). In fully cloud‑based networks, all management resources and hardware reside in the cloud, providing connectivity for cloud‑deployed applications.

History of the cloud

Most developments in cloud computing and cloud networking date back decades. In the 1960s, the convergence of services, virtualization, and network access laid the foundation for cloud concepts, allowing IT to move beyond traditional architectures.

From 2005 to 2011, public and private cloud adoption grew, spurred by Amazon EC2, which let users rent virtual servers on AWS, reducing the need for on‑premise hardware. Between 2012 and 2017, on‑demand compute, DevOps, streaming services, and hybrid cloud models formed the second generation of cloud, enabling seamless data and application movement across environments.

Cloud networking vs. traditional networking

Architects often ask whether to move computing to the cloud or stay with traditional networks. Traditional IT models offer strong security and control but require costly hardware purchases and upgrades, potentially affecting user experience. Cloud networking reduces hardware and software ownership, offering on‑demand, pay‑as‑you‑go access to real‑time functions, lowering redundancy and providing greater flexibility.

Cloud networking vs. cloud computing

Most definitions of cloud networking focus on the location of the network infrastructure that connects resources, whereas cloud computing encompasses all services needed to run applications in a provider’s data center, including storage, software, and databases.

Benefits of cloud networking

Cost reduction: No need to purchase or maintain expensive servers and hardware, saving capital expenditures.

Minimal downtime: Providers handle updates, reducing operational concerns and often notifying users in advance of any interruptions.

Scalability: Capacity can be adjusted seamlessly to match business demand without disrupting services.

Productivity: Providers manage maintenance, updates, and testing, freeing teams from routine tasks.

Resilience: Ensures consistent performance and uptime for future network planning.

Traditional network failures can be costly, with infrastructure outages averaging $100,000 per hour and application failures ranging from $500,000 to $1,000,000 per hour depending on scale.

Source: SDNLAB