Despite rapid advancements in digitization, only 5% of companies claim to have a modern network landscape. Technologies like software as a service edge (SASE) and network as a service (NaaS) leverage the cloud to provide enterprise networks with greater flexibility and broader features.

Indeed, more than 1 in 3 enterprises state that greater network availability and new services are the key reasons to pursue modernization. CIOs and CISOs need to know the differences between SASE and NaaS to plan their modernization initiatives strategically.

Understanding SASE (Secure Access Service Edge)

Over the years, enterprises managing remote workforces and geographically dispersed sites have faced significant challenges when using antiquated, sluggish networks with security posture vulnerabilities. Secure access service edge (SASE) has recently emerged as a solution that can address these concerns.

SASE is an architectural framework integrating cloud-based network security with the positive aspects of software-defined WAN (SD-WAN) technologies. Network teams can establish their SASE presence and deploy SD-WAN and network security services strategically across multiple clouds and cloud edges.

SASE service providers can work with these solutions as an as-a-service model, thereby minimizing the need for teams to implement and oversee these technologies personally.

A SASE implementation will have four components:

• Global SD-WAN coverage: SASE uses an encrypted SD-WAN to circumvent internet-related latency issues. This component establishes connections between the distinct points of presence (POPs) that networking and security software leverage.
• Distributed inspection and policy enforcement: SASE employs a group of concurrent processors to examine traffic. Malware detection and distributed denial-of-service (DDOS) protection are included. Remember, enforcing regulations, such as but not limited to the General Data Protection Regulation (GDPR), for the routing and security policies of SASE is imperative.
• Cloud architecture: SASE runs on architectures and resources hosted in the cloud, with no hardware prerequisites. Multi-tenancy is germane to the software architecture for cost-effectiveness.
• Identity-driven: Access to SASE services is controlled by user identity indicators, including the locations and devices that belong to specific users. This is in direct contrast to conventional network security that’s site-based.

Like network as a service (NaaS), SASE integrates security functions with networking functions and hosts them on the cloud. In many ways, NaaS and SASE resemble the operational models of many businesses today. SASE platforms integrate multiple security functions, including NaaS, which are managed through a unified interface implemented by the solution.

That’s why several NaaS vendors (like Cisco) also offer SASE solutions deployed using the same cloud-based vendor infrastructure.

3 Key Benefits of SASE for Businesses

By leveraging SASE, organizations can:

1. Cut through the complexity of traditional cloud security systems

SASE minimizes unnecessary complexities by incorporating technologies like Firewall-as-a-Service (FwaaS), URL filtering, intrusion prevention systems (IPS), and real-time anti-malware scanning. There’s no need to submit multiple applications. Moreover, SASE utilities offer straightforward endpoint security for cloud-based networking. Security teams can promptly identify threats regardless of endpoint dissemination/distribution.

2. Achieve end-to-end security

SASE’s consolidation of all security tools into a single cloud platform, which safeguards sensitive data at the perimeter, is among its primary advantages. Expanding its reach to the most remote network margins creates a resilient perimeter for organizations dependent on distributed data centers and edge computing. When working with secure connections, remote employees can easily access centralized resources.

3. Enforce network-wide security policies at once

SASE is a foundational component in safeguarding data loss prevention (DLP) mechanisms, which pertain to data at rest and in transit. Multiple-factor authentication (MFA) portals rigorously regulate access to sensitive data. Also, SASE lets administrators enforce zero-trust access policies and monitor requests for access in real-time.

Exploring NAAS (Network as a Service)

Network as a Service (NaaS) is a cloud-based system that empowers users to readily manage the network and accomplish the desired results without possessing, constructing, or administering their infrastructure. The acquisition, design, deployment, and assembly of switching, routing, and wireless components are handed over to a third-party service provider, just like any SaaS implementation.

A company enters into a multiyear contract with the service provider, which undertakes full responsibility for the construction, relocation, addition, modification, and resolution of any issues about network infrastructure.

NaaS has emerged as a feasible alternative for organizations seeking to circumvent the challenges associated with recruiting and retaining network specialists — not to mention substantial initial investment requirements. Using NaaS, IT network architects can free up time and minimize demands on internal teams.

Managed software-defined vast area network (SD-WAN), network access (including wireless), security, unified communication services, and other offerings may be included in the NaaS services. A typical NaaS solution will comprise:

• Connectivity infrastructure: The primary aim of the connectivity component is to furnish network links with an eye on quality of service (QoS) and preset bandwidth. It facilitates accessible communication between various devices, infrastructures, and networks inside the organization through data transmission. These systems or devices can be connected wirelessly using 5G mobile networks or fiber connections.
• Self-service: Businesses can connect to and access their system of virtual network functions (VNFs) in near real-time using the self-service portal. With a single click, organizations can effortlessly administer their networks and value-added services (VAS) with the NaaS portal and the integrated marketplace.
• Managed network services: Businesses assign these networking tasks to a managed service provider (MSP), who also functions as the NaaS provider. During the stages of relocation and installation, the enterprise IT team can use these services.

Regarding SaaS vs. NaaS, no matter where or when the secure access service edge (SASE) architecture has to be implemented, it can accelerate the process. Your SASE solution can be installed automatically by your NaaS provider immediately within the NaaS they administer.

The Role of NAAS in Network Management

NaaS improves network management by:

1. Saving costs

Acquiring cloud services instead of developing individualized organizational assets can frequently lead to financial savings. The service delivery doesn’t ask enterprises to buy and maintain hardware, as the vendor owns the necessary servers. The cloud provider takes care of the network maintenance responsibilities, including software and hardware enhancements.

2. Adapting and growing the network as needed

NaaS offers increased adaptability and customization. Network adjustments are carried out using software as opposed to hardware. On-demand, the vendor can remotely reconfigure customer networks. Moreover, NaaS is inherently more scalable than conventional services dependent on hardware. Enterprise NaaS customers can get additional capacity from a vendor without purchasing the hardware.

3. Enabling anytime, anywhere access

Users may connect to a cloud-based network without needing a virtual private network (VPN), regardless of the network’s configuration or device. Login credentials and an Internet connection are all a user requires.

What is the Difference Between NaaS vs. SASE?

Although SASE and NaaS address network infrastructure concerns, their ultimate goals and advantages are unique and distinct. SASE prioritizes the enhancement of data security and the optimization of network performance for distributed workforces. A subscription-based NaaS model eliminates network construction and management, freeing up organizational bandwidth.

NaaS vendors may offer SASE solutions as part of their technology stack, while SASE products may work better when implemented alongside NaaS. Companies prioritizing security should consider SASE for implementation in 2024, while NaaS must be on the roadmap for companies looking at overall network modernization and decoupling from hardware dependencies.

Finding The Right Synergies

Increased demand on enterprise networks — driven by connected systems and the continued implementation of remote work regulations — makes this year particularly significant.  Staying abreast of the latest technological advances, like SASE and NaaS, will help you roll out highly advantageous modifications to your organization.

The first step toward this transformation is to build a solid cloud bedrock that supports your future vision for flexible, secure, wide-ranging, and cost-effective delivery of network services.