Mesh Network Service Protection Sharing via Suppression Relations
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Solution Overview
Problem
Traditional protection methods in mesh networks, such as link-type 1+1 protection and looped network protection, are inadequate for complex mesh networks as they fail to meet service recovery time requirements and lead to conflicts in using protection resources when multiple failures occur.
Innovation Solution
A method and apparatus for sharing service protection in a mesh network that generates a suppression relation based on work and protection path information, adjusting protection states, and executing protection processing to avoid resource conflicts, thereby enhancing bandwidth utilization and system resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional link-type 1+1 protection or looped network protection is used in mesh networks, then protection coverage is provided, but service recovery time exceeds the industrial requirement of 50 ms
Solution Approach 1:
The patent pre-calculates and pre-establishes suppression relations between protected services before failures occur. When a failure happens, the system immediately executes the pre-determined protection switching based on these suppression relations, avoiding complex real-time calculations and achieving recovery within 50 ms
Solution Approach 2:
The patent segments the protection domain into multiple protected services with defined suppression relations. Each service has a determined protection path and suppression relationship with other services, allowing independent and rapid protection switching without coordinated complexity across the entire network
2Quantity of substance
If multiple working services share protection resources in a mesh network, then bandwidth utilization increases, but conflicts occur in using protection resources when multiple failures happen
Solution Approach 1:
The patent assigns different suppression priorities and protection paths to different protected services based on their local requirements. When failures occur, the suppression relations determine which service gets protection resources first, eliminating conflicts by establishing clear local priorities rather than allowing arbitrary resource contention
Solution Approach 2:
The suppression relations between protected services are pre-calculated and established before failures occur. This preliminary configuration ensures that when multiple failures happen simultaneously, the system knows in advance which services can share protection resources and which have exclusive rights, preventing resource conflicts
3Use of energy by moving object
If protection resources are shared among multiple services, then bandwidth utilization rate increases, but system capability to handle repeated failures decreases due to resource conflicts
Solution Approach 1:
The patent changes the state parameters of protected services by introducing suppression relations that define priority levels and resource allocation rules. This parameter change allows the system to dynamically adjust protection resource allocation based on failure scenarios while maintaining high bandwidth utilization through controlled sharing
Data Source
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AI summary
The disclosure provides a method and apparatus for sharing service protection in a mesh network, including: generating a suppression relation according to work path information and protection path information of each service in a protection domain; and when a failure appears/disappears, adjusting a protection state of a service according to the suppression relation, and executing protection processing according to the protection state of the service. By way of protecting route sharing suppression, the disclosure avoids conflict in using protection resources, effectively implementing sharing of protection bandwidth resources, increasing bandwidth utilization rate, enhancing system capability against repeated failures.