White-list Network Security Migration via Traffic Analysis
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Solution Overview
Problem
Network configurations in large data center networks are complex and prone to errors, leading to inconsistencies that can cause significant problems, as the configurations defined by a centralized controller may not accurately reflect the intended behavior of the network.
Innovation Solution
The implementation of systems and methods for migrating and maintaining white-list security models, which involve identifying and forwarding network traffic based on a white-list security model by generating and implementing a permit-access policy, ensuring that only authorized traffic is allowed, thereby preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a centralized controller programs network configurations for large data center networks, then network management and control is simplified, but configuration errors and inconsistencies increase due to complexity
Solution Approach 1:
The system performs preliminary validation of network configurations before they are deployed. By checking configurations in advance against expected network states and detecting potential issues beforehand, the system prevents configuration errors from causing network problems while maintaining centralized control simplicity.
Solution Approach 2:
The system continuously monitors network actual behavior and compares it against intended configurations, providing feedback loops that detect inconsistencies between what should be configured and what is actually happening. This enables automatic detection and correction of configuration drift and errors.
2Adaptability or versatility
If network configurations are made more complex to handle advanced network functions, then network functionality is enhanced, but error detection becomes more difficult
Solution Approach 1:
The system breaks down complex network configurations into smaller, manageable components and validates each segment independently. By segmenting the configuration validation process, the system can detect errors in specific areas without being overwhelmed by the overall complexity of the network setup.
Solution Approach 2:
The system implements visual indicators and status representations that make configuration states visible and detectable. By using clear visual feedback to show configuration status, compliance, and potential issues, the system makes error detection easier even for complex multi-layer network configurations.
3Reliability
If a white-list security model is implemented to ensure network security, then unauthorized access is prevented, but network traffic management complexity increases
Solution Approach 1:
The system automatically manages the white-list by monitoring network traffic patterns and configurations, then automatically adding authorized traffic entries to the white-list without manual intervention. This self-service approach maintains strong security while reducing operational complexity through automation.
Solution Approach 2:
The system dynamically adjusts white-list parameters based on detected network conditions and traffic patterns. By automatically updating allow-list entries based on actual network behavior rather than static rules, the system maintains security effectiveness while simplifying traffic management through adaptive automation.
Data Source
AI summary
Systems, methods, and computer-readable media for migrating to and maintaining a white-list network security model. Network traffic identified from permit-all access logs can be analyzed to determine whether it should be white-listed, and if so, a specific permit-access, without logging, policy is generated for the identified network traffic. The addition of specific permit-access policies is repeated on permit-all access logs, at which point, permit-all access policy is converted into deny-all access. In some examples, a system or method can obtain hit counts, from both hardware (eg: TCAM) and software tables, for the specific permit-access policy to determine existence of identified network traffic over a period of time. After analyzing hit counts, the specific permit-access policy can either continue to exist or be removed to maintain a white-list network security model.