Prioritized Rule Set Deployment for Constrained Network Devices
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Solution Overview
Problem
Constrained network devices in Low Power and Lossy Networks (LLNs) face challenges in deploying complex rules due to limited processing capacity, memory, and network resources, leading to sub-optimal or ineffective rule deployments that are not scalable and are adversely affected by changing network conditions.
Innovation Solution
A management device generates a prioritized rule set for each constrained network device, selecting rules based on device and network context, and executes a lifetimed rule set that includes only the highest-priority rules within the device's processing capacity, ensuring optimal and scalable on-demand deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex rules are deployed to constrained network devices, then network control capability is improved, but device processing capacity and memory are exceeded
Solution Approach 1:
The patent segments the rule set into multiple priority levels (high, medium, low priority) and divides deployment into phases. High-priority rules are deployed immediately to ensure critical network control functions, while lower-priority rules are deployed subsequently or omitted based on device capacity constraints. This segmentation allows the system to achieve network control capability without overwhelming device processing capacity.
Solution Approach 2:
The patent extracts and identifies the essential high-priority rules from the complete rule set that are critical for network operation. By taking out only the most important rules for deployment on constrained devices, the system maintains necessary network control capability while avoiding the burden of deploying the entire complex rule set to resource-limited devices.
2Adaptability or versatility
If more rules are deployed to constrained network devices, then network functionality is improved, but memory and processing resources are consumed
Solution Approach 1:
The patent applies local quality by tailoring the rule set deployment to the specific capabilities and context of each constrained network device. Different devices receive different subsets of rules based on their individual memory capacity, processing power, and network role. This ensures each device has the functionality it needs without wasting precious resources on unnecessary rules.
Solution Approach 2:
The patent implements partial action by deploying only the necessary subset of rules required for basic network functionality on constrained devices, rather than deploying the complete rule set. This partial deployment approach provides sufficient network functionality while conserving memory and processing resources on devices with limited capacity.
3Ease of manufacture
If static rule sets are deployed to constrained network devices, then deployment simplicity is maintained, but adaptability to changing network conditions deteriorates
Solution Approach 1:
The patent introduces dynamics by implementing a priority-based rule deployment system that can adapt to changing network conditions. The rules are organized in priority levels, allowing the system to dynamically adjust which rules are active based on current network state, device capacity, and environmental conditions. This maintains deployment simplicity through structured priority levels while enabling adaptability when conditions change.
4Reliability
If all available rules are deployed to constrained network devices, then rule coverage is improved, but device performance deteriorates
Solution Approach 1:
The patent applies partial action by deploying only the critical high-priority rules to constrained network devices, accepting that not all rules will be deployed. This ensures sufficient rule coverage for essential network functions while maintaining device performance by avoiding the overhead of processing and executing the complete rule set.
Data Source
AI summary
In one embodiment, a method comprises a management device, in a constrained network comprising constrained network devices, identifying for each constrained network device all available rules for execution by the corresponding constrained network device; the management device generating a prioritized rule set for each constrained network device, each prioritized rule set having selected available rules ordered relative to priority of execution by the corresponding constrained network device relative to a corresponding device context and a corresponding network context of the corresponding constrained network device; and the management device executing, for each constrained network device, a corresponding constrained deployment of the corresponding prioritized rule set based on identifying, from the corresponding prioritized rule set, a lifetimed rule set relative to the corresponding device context and network context, and supplying the lifetimed rule set to the corresponding constrained network device.