Endpoint State Validation in a Distributed Control Plane
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Solution Overview
Problem
In distributed systems, management entities often have stale or incongruent understandings of the states of endpoint devices, leading to conflicting state updates that can disadvantageously reconfigure devices.
Innovation Solution
Implementing a state management model where endpoint devices serve as the source of truth for their states, allowing them to reject or process updates based on accurate state matching, and distribute information about state transitions to align with the control plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If management entities generate and distribute state updates based on their understanding of device states, then device management and configuration can be performed, but management entities may have stale or incongruent understandings leading to conflicting state updates
Solution Approach 1:
The system implements feedback mechanisms where endpoint devices report their actual states back to management entities. This allows management entities to update their understandings of device states, ensuring that subsequent state updates are based on current and accurate information, thereby preventing conflicting updates while maintaining ease of device management
Solution Approach 2:
The system performs preliminary validation of state updates by checking whether the configured state on which a desired state update is based matches the actual configured state of the endpoint device before applying the update. This preliminary action prevents conflicting state updates from being applied, ensuring reliability while allowing normal management operations to proceed
2Adaptability or versatility
If endpoint devices process all received state updates, then device configuration can be updated, but incongruent updates based on stale information can cause harmful reconfigurations
Solution Approach 1:
The endpoint device performs a preliminary match determination between the configured state in the desired state update and its actual configured state before processing the update. This preliminary check ensures that only congruent, valid updates are processed, preventing harmful reconfigurations while maintaining configuration flexibility through valid updates
Solution Approach 2:
The endpoint device acts as an intermediary that validates and filters state updates before applying them. By checking whether updates are based on accurate state information, the device mediates between incoming update requests and its actual configuration state, blocking harmful updates while allowing beneficial ones through
Data Source
AI summary
Methods and systems for manage operation of endpoint devices are disclosed. To manage the operation of endpoint devices, management systems may monitor and update the state of the endpoint devices. To manage incongruencies among state updates and the states of the endpoint devices, the endpoint devices may implement a state management model that vests authority over the true states of the endpoint devices in the endpoint devices. Consequently, the endpoint devices may resolve incongruencies by rejecting some state updates that do not reflect the true states of the endpoint devices.