SDWAN excels in network isolation and employs a variety of technology tools to ensure the isolation and security of data flows between different departments, branches, and users in an enterprise network. The following are the main performances of SDWAN in network isolation and the comparison with other technologies:

1. Virtual Private Network (VPN) Isolation

SDWAN can segregate the data flow of different branches by establishing virtual private network (VPN) tunnels. Each branch office has its own VPN tunnel, and data is encrypted during transmission to ensure that data can only be passed within the tunnel, avoiding data leakage and unauthorized access.
Comparison: Traditional VPN technology can also achieve network isolation, but SDWAN technology provides more flexible and intelligent VPN management and optimization, which can automatically select the best path and allocate bandwidth according to the actual network conditions, improving data transmission efficiency and reliability.

2. Security Policy Isolation

SDWAN can categorize and segregate network traffic based on different security policies. For example, security policies based on applications, user identities, ports or IP addresses can be set to ensure that sensitive data can only be accessed by authorized users, thus avoiding data leakage and malicious attacks.
Comparison: Traditional network segregation usually requires complex security devices and configurations that are difficult to manage and maintain. sDWAN simplifies the process of implementing and adjusting security policies through centralized management and intelligent optimization, improving the flexibility and manageability of network segregation.

3. Layered Access Control

SDWAN can realize network isolation between different users and departments through layered access control. Administrators can set different network access policies based on user roles and permissions to ensure that only authorized users can access specific network resources.
Comparison: Traditional network isolation usually requires complex access control lists (ACLs) and authentication mechanisms that are difficult to maintain and manage. sDWAN network isolation simplifies the implementation and management of access control and improves the controllability and scalability of network isolation through a centralized control plane and intelligent routing.

4. Application Prioritization and QoS Isolation

SDWAN can segregate and optimize network traffic based on application priorities and requirements. Critical applications receive more bandwidth and lower latency, ensuring that their performance is not impacted by other applications.
Comparison: Traditional network segregation usually fails to differentiate Quality of Service (QoS) settings for different applications, which can lead to network congestion and performance degradation. sDWAN guarantees the stable operation of critical applications through intelligent traffic optimization and load balancing.

To summarize, SDWAN excels in network isolation. It ensures secure, stable and efficient data flow in the enterprise network through technical means such as virtual private network isolation, security policy isolation, layered access control, application prioritization and QoS isolation. Compared with traditional network isolation technology, SDWAN has higher flexibility, manageability and intelligent optimization capabilities, which can better meet the needs of enterprises for network isolation.