Network Link Performance Detection via Support Node Segmentation
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Solution Overview
Problem
Current network performance monitoring methods, such as RSVP-TE, require generating multiple overlay paths and sending specified packets on each path to measure link performance, which becomes complex and inefficient, especially in networks with many nodes and complex structures, reducing measurement efficiency.
Innovation Solution
A method where a probing device determines a support node and selects adjacent nodes to generate two detection paths, sending detection packets on these paths to measure link performance by comparing parameter information from both paths, allowing for efficient detection of link performance with reduced complexity and storage needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple overlay paths are generated to cover links of the entire network for performance monitoring, then link performance detection capability is improved, but measurement complexity increases and measurement efficiency decreases
Solution Approach 1:
The patent segments the network measurement task by introducing support nodes that divide the network into multiple segments. Each support node independently manages detection paths within its segment, breaking down the complex global measurement problem into simpler local measurement tasks. This segmentation reduces overall measurement complexity while maintaining comprehensive link coverage.
Solution Approach 2:
The patent introduces support nodes as intermediary elements between the probing device and network links. These support nodes act as mediators that receive detection packets, generate local detection paths, and return results to the probing device. This intermediary layer simplifies the probing device's workload and reduces measurement complexity while preserving detection capability.
2Measurement precision
If multiple overlay paths are generated with specified packet quantities for monitoring, then link performance measurement coverage is improved, but measurement efficiency decreases
Solution Approach 1:
The patent divides the measurement task into segments managed by different support nodes. Each support node handles a specific portion of the network, independently generating and managing detection paths within its segment. This segmentation enables parallel measurement operations across multiple segments, significantly improving measurement efficiency while maintaining comprehensive coverage.
Solution Approach 2:
The patent implements preliminary action by having support nodes pre-generate detection paths and prepare measurement configurations before actual performance monitoring begins. This advance preparation reduces the computational burden during active measurement, allowing for more efficient real-time performance monitoring across multiple links simultaneously.
3Measurement precision
If path information is stored locally in each node for detection, then detection accuracy is improved, but storage capacity requirements increase
Solution Approach 1:
The patent extracts the path information storage requirement from individual network nodes and centralizes it in the probing device. The probing device generates detection packets containing complete path information and sends them to support nodes, which temporarily use this information for local path generation without needing to store it long-term. This extraction significantly reduces storage requirements in network nodes while maintaining detection accuracy.
Solution Approach 2:
The probing device acts as an intermediary that centralizes path information management. Instead of each node storing path information, the probing device generates and distributes path information as needed to support nodes during detection operations. This intermediary approach ensures accurate path information is available for detection while minimizing storage requirements across the network.
Data Source
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AI summary
Embodiments of this application provide a network performance measurement method and a probing device, and relate to the field of communications technologies. The method includes: determining a support node, where the support node is a node in a to-be-measured network; selecting a first to-be-probed node from at least one adjacent node of the support node; generating two detection paths according to the support node and the first to-be-probed node, where the two detection paths include a first detection path and a second detection path, the first detection path includes a path between a probing device and the support node, the second detection path includes the first detection path and a first to-be-measured link, and the first to-be-measured link is a link between the support node and the first to-be-probed node; sending a detection packet on each detection path of the two detection paths, and detecting parameter information of each detection path; and determining, according to parameter information of the first detection path and parameter information of the second detection path, link performance of the first to-be-measured link included in the to-be-measured network.