SASEn

SASEn is a cloud computing architecture pattern that stands for Serverless Application and Service Edge Network. It is a relatively new and innovative approach to the traditional application development and infrastructure management. The core idea behind SASEn is to integrate networking and security functions into the cloud, eliminating the need for physical or virtual appliances.

SASEn aims to provide a more flexible and scalable approach to security and networking, making it suitable for modern applications that require high performance and efficient resource allocation. It allows users to manage and secure applications without the need for a dedicated infrastructure, which reduces the overhead of traditional networking and security solutions.

The main components of a SASEn architecture include the network edge, which refers to the last hop between the users and services in the cloud. This is usually ensured by using a customer-premises equipment (CPE) that serves as a secure internet gateway. Other components include the application, which is the application code itself, and the runtime, which is the set of resources required to manage the application.

SASEn uses various technologies such as edge compute, software-defined wide area network (SD-WAN), and security functions such as firewall, intrusion detection and prevention, and virtual private network (VPN) to enable secure and efficient computation at the edge. By leveraging microservices architecture and functioning as a service-based paradigm, SASEn allows for dynamic scaling, efficient resource distribution, and the integration of security functions into the application itself.

While SASEn offers many benefits, its early adoption rate has been limited by concerns around complexity and total cost of ownership. Still, SASEn has the potential to increase the efficiency of the cloud environment, reduce attack surface, and allow for faster development and deployment of new services. As enterprises seek ways to simplify infrastructure and improve scalability, SASEn remains an area of significant interest in the IT industry.