Protection Switching Path Selection for Service Traffic Continuity
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Solution Overview
Problem
Service traffic transmission interruptions occur in communication networks, particularly when faults occur on protection switching paths.
Innovation Solution
A communication system and method that determines service transmission paths based on channel states, utilizing protection switching channels to bypass faulty links and ensure uninterrupted service delivery through alternative paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protection switching paths are used to bypass faulty links, then service transmission reliability is improved, but path selection complexity increases
Solution Approach 1:
The patent pre-establishes multiple protection switching paths and configures channel state monitoring before faults occur. When a fault is detected, the system can immediately switch to a pre-configured alternative path without complex real-time routing calculations, thus improving reliability while controlling complexity.
Solution Approach 2:
The system continuously monitors channel states and uses this feedback to dynamically adjust path selection. The monitoring mechanism provides real-time information about channel availability, enabling the system to make informed switching decisions and maintain reliable service transmission adaptively.
2Reliability
If multiple protection switching channels are configured, then service continuity is improved, but system resource consumption increases
Solution Approach 1:
The patent implements dynamic path selection where protection switching channels are activated based on actual fault conditions. Instead of permanently allocating resources to all possible protection paths, the system dynamically activates only the necessary protection channels when faults occur, thereby maintaining service continuity while reducing overall resource consumption.
Solution Approach 2:
The system changes the operational state of protection channels based on detected fault conditions. Normal channels are deactivated or placed in standby mode to conserve resources, while protection channels are activated only when needed, optimizing the balance between service continuity and resource usage.
Data Source
AI summary
This application discloses a communication system including a target network, and the target network includes at least a first subnetwork domain. The first subnetwork domain includes a first network node that belongs to a first path and a second network node that belongs to a second path. The first path includes a first channel and a second channel that are connected to the first network node, and the second path includes a third channel and a fourth channel that are connected to the second network node. The first channel and the third channel are protection switching channels for each other, and the second channel and the fourth channel are protection switching channels for each other. The first network node and/or the second network node may determine a transmission path of a service based on a state of a channel.