P2MP Ring Network Protection Grouping Shared Channels
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Solution Overview
Problem
Existing point-to-multipoint (p2mp) ring network protection methods establish protection channels based on each service as a unit, leading to a complex network structure and excessive resource usage.
Innovation Solution
Grouping p2mp services with identical off-ring nodes as a protection group and establishing a pair of closed loop channels in opposite directions for each group, where one channel serves as the working channel and the other as the protection channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protection channels are established by taking each p2mp service as a unit, then service protection reliability is ensured, but the number of protection channels increases linearly with the number of services, leading to complex network structure and excessive resource usage
Solution Approach 1:
The patent merges multiple protection channels into a shared protection channel by grouping p2mp services that share common off-ring nodes. Instead of establishing separate protection channels for each service, the invention combines the protection requirements of multiple services into a single shared protection channel, thereby reducing the total number of protection channels while maintaining protection reliability for all grouped services
Solution Approach 2:
The shared protection channel serves multiple p2mp services simultaneously, making it a universal resource that performs multiple protection functions. This multi-functional approach allows a single protection channel to protect multiple services, reducing resource redundancy and simplifying the network structure while ensuring that each service still receives adequate protection
2Reliability
If separate protection channels are established for each p2mp service, then service-specific protection is guaranteed, but network resource consumption increases proportionally with the number of services
Solution Approach 1:
The patent combines the protection resources required by multiple services into a shared protection channel, thereby merging previously separate resource allocations. This consolidation reduces the total network resource consumption while maintaining the protection capability for each individual service through the shared channel
Solution Approach 2:
The invention recovers unused protection capacity by allowing a shared protection channel to serve multiple services. Instead of each service having dedicated protection resources that may remain underutilized, the system recovers and reallocates protection capacity across multiple services, reducing overall resource waste and improving resource utilization efficiency
Data Source
AI summary
A p2mp ring network protection method including, for each ring in the p2mp ring network, determining p2mp services with an identical off-ring node as a protection group; and establishing a pair of closed loop channels in opposite directions for each protection group; for each p2mp service, taking one of the closed loop channels as a working channel, and taking the other one of the closed loop channels as a protection channel. According to the present disclosure, the network structure can be simplified and the network resources can be saved.