Mesh Network Protection Resource Allocation via Unified Priority
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Solution Overview
Problem
In mesh networks, existing protection methods fail to efficiently utilize reserved bandwidth due to resource competition among protected services, requiring complex rules to determine priority between service levels and manual commands, leading to difficulties in resource allocation.
Innovation Solution
A method and node for allocating protection resources based on a priority order of first-level manual commands, service signal failure, service signal degradation, and second-level manual commands, simplifying the determination of resource occupancy without complex rules by defining clear priorities for signal failure and signal degradation based on service levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple protected services share the same protection resources in mesh network, then network utilization is enhanced, but resource competition emerges requiring complex preemption rules
Solution Approach 1:
The patent applies parameter changes by transforming the two-dimensional priority judgment (service level + manual command) into a one-dimensional unified priority value. Each service is assigned a unique priority value that combines its service level and manual command state, allowing direct comparison without complex rule evaluation. This reduces the complexity of resource preemption decisions while maintaining network utilization benefits.
Solution Approach 2:
The patent segments the priority determination into distinct hierarchical levels: service levels (first dimension) and manual commands (second dimension). By dividing the priority assessment into these manageable segments and combining them through defined rules, the system avoids evaluating all possible command-service combinations simultaneously, thereby reducing overall system complexity.
2Reliability
If complex rules are developed to meet all preemption requirements between service levels and manual commands, then all scenarios are covered, but information storage and processing complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and assigning unified priority values to services based on their service levels and manual command states. Instead of evaluating complex rules in real-time during resource preemption, the system prepares priority information in advance, storing only the resulting priority values. This reduces information storage requirements and speeds up processing during actual preemption events.
3Reliability
If linear protection and ring shared protection are deployed in mesh network, then protection functionality is provided, but reserved bandwidth resource is not fully utilized
Solution Approach 1:
The patent applies universality by designing a unified protection resource sharing mechanism that works across multiple service types and protection scenarios in mesh networks. The same protection resources can be dynamically shared among different services based on their priority levels and failure states, allowing the system to provide comprehensive protection functionality while maximizing bandwidth utilization through flexible resource allocation.
Data Source
AI summary
Disclosed are a method and node for a service to occupy protection resources in shared protection, including: when receiving a command or service state information, a node responding to the command or service state and allocating protection resources to a corresponding service in accordance with a priority order of a first-level manual command, a service signal failure, a service signal degradation and a second-level manual command. By integrating priorities of the manual command and the service state, the embodiments of the present document formulate a set of unified priority rules, reducing the information stored on nodes in a mesh network, and simplifying the processing procedure of the mesh network.