NaaS is a cloud service model in which customers rent network services from a cloud provider, NaaS Allows users to operate their own networks without having to maintain their own network infrastructure. Like other cloud services, NaaS

Vendors use software to run networking functions, and companies basically build their own networks without the hardware infrastructure, just an Internet connection. NaaS can replace virtual private network cards, multiprotocol label switching connections, or other traditional network configurations. In addition, NaaS can replace internal network hardware, such as firewall devices and load balancers, NaaS It has a significant impact on the network architecture of the enterprise.

When configuring network infrastructure, the Internet itself is not considered a trusted place to conduct business, so the enterprise establishes an internal private Internet version and uses this to connect devices, and the enterprise needs to configure its own WAN, firewall, DDOS, load balancer and other hardware. Enterprises also use methods such as MPLS to establish dedicated connections between each location.

When employees are connected to the Internet instead of an internal network, corporate traffic must pass through the virtual network through the corporate infrastructure before reaching the Internet. As business activities slowly migrate to the cloud, this model becomes inefficient, with performance bottlenecks and network latency. As cloud computing becomes more efficient, more functions are delivered through the cloud. Critical network functions such as DDOS deployment, firewalls, and load balancing can all be run in the cloud. You don't have to build and maintain these services within an internal IT team.

NaaS is a more effective alternative to a WAN that relies on in-house maintenance. NaaS enables employees to connect directly to cloud services through an external vendor that manages and protects the delicate network, rather than an internal IT team trying to keep up with network service demands.

But NaaS is currently facing a number of challenges, such as compatibility. NaaS 'vendor infrastructure may not be compatible with legacy systems that still exist. Such as old hardware, local based applications, etc.

Traditional data centers. In many enterprises, critical applications and processes are still running in on-premises data centers rather than in the managed cloud. This makes NaaS migration more difficult.

Vendor lock. Moving to the cloud has to take into account the risk that companies may become more dependent on the operator of a particular service. If a service provider's infrastructure fails or prices are raised, there is bound to be a significant impact on the business.

NaaS is flexible, scalable, accessible from anywhere, maintenance-free, bundled with security, cost savings, and more. NaaS and SASE (Secure Access Service Edge) combine software-defined networking and network security capabilities that are delivered through a single service provider. Like NaaS, SASE hosts networking functions in the cloud and combines them with security functions. NaaS and SASE have many similarities and are the operating models that more and more enterprises are adopting today.