Multi-link Device Security Association Query Mechanism

The security association query mechanism is segmented into distinct components: individual SA query request frames for each link, separate timeout parameters (retry timeout and maximum timeout) for each link, and link-specific security association information elements. This segmentation allows the complex security verification to be broken down into manageable per-link operations rather than requiring complex global state management across all links simultaneously.

The patent introduces a new temporal dimension to the security association query by adding timeout mechanisms (retry timeout and maximum timeout) that operate independently for each link. This temporal dimensionality allows the system to handle security verification asynchronously and independently per link, reducing the complexity of synchronous coordination across multiple links while maintaining security integrity.

The timeout parameters (retry timeout and maximum timeout) are pre-configured and stored in the device before actual security association queries are performed. These preliminary timeout settings allow the device to immediately enforce time constraints on SA query requests without requiring real-time calculation or coordination, thereby preventing attack scenarios while minimizing processing delays during actual operations.

The retry timeout mechanism implements periodic re-attempts of security association queries at predetermined intervals. Instead of continuous polling or immediate re-transmission, the system waits for the configured retry timeout period before attempting another query, which reduces communication overhead and processing time while still providing robust security verification against attacks.