Stateful Security Redundancy in Communication Systems
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Solution Overview
Problem
Communication systems face challenges in providing secure and redundant security mechanisms, particularly in ensuring seamless failover and synchronization of secure channel state information across security nodes in redundancy domains, which is crucial for maintaining uninterrupted secure communications.
Innovation Solution
The implementation of a security node within a redundancy domain that determines its administrative and runtime roles based on configuration information and interaction with other nodes, performs synchronization of secure channel state information, and directs traffic to an active security node using activity election protocols and activity-aware routing, ensuring that backup nodes can seamlessly take over in case of failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup security nodes are configured to provide redundancy, then reliability of secure communications is improved, but complexity of synchronizing secure channel state information between nodes increases
Solution Approach 1:
The synchronization process is segmented into selective synchronization of critical state information rather than full state synchronization. The patent segments the secure channel state information into essential components that need to be synchronized between active and backup nodes, reducing the complexity while maintaining reliability.
Solution Approach 2:
The system performs preliminary actions by pre-configuring backup nodes with security policies and pre-establishing synchronization mechanisms before failures occur. This preliminary preparation reduces the complexity of real-time synchronization during failover events while ensuring high reliability.
2Reliability
If activity election protocols are implemented to determine active and backup roles, then seamless failover is enabled, but overhead of role determination and traffic attraction processes increases
Solution Approach 1:
The system implements dynamic role determination where security nodes can transition between active and backup roles based on real-time conditions. The activity election protocol dynamically assigns roles using metrics such as node availability, performance, and configuration, enabling seamless failover while minimizing overhead through efficient dynamic decision-making.
3Reliability
If backup nodes synchronize secure channel state information, then uninterrupted secure communications are maintained, but computational resources consumed by synchronization processes increases
Solution Approach 1:
The synchronization mechanism applies local quality by synchronizing only the essential state information locally needed for failover at each backup node, rather than synchronizing all possible data. This selective approach maintains uninterrupted communications while reducing computational resource consumption.
Solution Approach 2:
The system changes synchronization parameters dynamically based on network conditions, synchronizing state information at different frequencies and depths depending on the operational context. This parameter adjustment maintains communication reliability while optimizing computational resource usage.
Data Source
AI summary
Various example embodiments for supporting security in a communication system are presented. Various example embodiments for supporting security in a communication system may be configured to support stateful security redundancy in the communication system. Various example embodiments for supporting stateful security redundancy in a communication system may be configured to support stateful security redundancy for a set of client devices based on a set of security nodes arranged in a security redundancy architecture. Various example embodiments for supporting stateful security redundancy for a set of client devices based on a set of security nodes arranged in a security redundancy architecture may be configured to support stateful security redundancy for a client device based on a security redundancy domain including an active security node and one or more standby security nodes.