Network as a Service (NaaS) is a cloud service model that allows enterprises to acquire network infrastructure components on a subscription basis. This model provides integrated hardware, software, and licenses, enabling IT professionals to configure services to fit their business needs and have them operational quickly. Although adoption of NaaS has been slow due to confusion about its definition and concerns regarding security, ABI Research anticipates that over 90% of enterprises will be utilizing at least 25% of their network services through NaaS by 2030.
Understanding NaaS
Definitions vary, but at its core, NaaS enables users to orchestrate network capabilities without the need for ownership or maintenance of infrastructure. It can involve subscription-based networking equipment procurement, managed services, or a full NaaS where the provider handles all aspects, allowing companies to pay a monthly fee for services.
Expert Definitions:
- IDC analyst Brandon Butler: Defines NaaS as a cloud-enabled, usage-based model that scales to meet the needs of a broad range of network elements.
- Neil Anderson, World Wide Technology: Describes it as a service where the provider owns and operates the equipment, while the organization pays for the services.
- Jay Gill, Pluribus Networks: Sees NaaS as any virtualized network construct abstracted from physical infrastructure.
NaaS Delivery Models
- Subscription Hardware: Businesses pay a monthly fee for hardware, maintaining control over installation and operation.
- Managed Service: Includes the subscription hardware plus operational management by the provider.
- Pure NaaS: The provider takes full ownership and operational responsibility of the network infrastructure.
Providers of NaaS
The landscape of NaaS providers is diverse, including:
- Networking vendors like HPE-Aruba, Cisco, and Dell.
- Telecommunication companies such as Google and Verizon.
- Specialized WAN and multicloud vendors.
- Startups offering campus-focused networking solutions.
Benefits of NaaS
NaaS offers several advantages for enterprises:
- IT Flexibility: Easily scale network resources to match demand fluctuations.
- Operational Cost Structure: Treats infrastructure costs as operational expenses.
- Speedier Deployments: Utilizes vendor expertise for quicker project turnaround.
- Access to Innovation: Provides a pathway to adopt newer technologies more frequently, such as Wi-Fi 6.
Challenges of NaaS
Security concerns remain a significant hurdle, as organizations may hesitate to entrust network controls to third-party providers. The complexity of migrating existing infrastructure to a NaaS model can also pose challenges, particularly for large organizations. Cost variability in NaaS pricing may lead to unexpected operational expenses, adding another layer of caution for potential adopters.
Recent Developments in NaaS
Industry frameworks are emerging to facilitate NaaS adoption, such as MEF’s standardized service definitions and automation capabilities. Furthermore, the rise of campus/LAN NaaS has been observed, indicating a shift in focus from traditional WAN to more localized network services. Key players in this domain are increasing their offerings and integrating advanced security features, including zero trust network access capabilities.
Overall, NaaS could reshape how enterprises think about and implement network infrastructure, potentially fostering both efficiency and innovation in networking paradigms.
