Optical Network Terminal Ethernet Performance Detection
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Solution Overview
Problem
In network node redundancy scenarios, existing Ethernet performance detection methods interrupt daily performance monitoring when a node fails and is switched to a backup, requiring manual reconfiguration to restore service, leading to unnecessary alarms and increased operational costs.
Innovation Solution
Deploying two virtual Maintenance End Points (MEPs) with identical IDs on main and backup nodes, where one virtual MEP is active and the other is standby, allowing the optical network terminal to automatically switch performance detection paths without manual intervention, using protocols like VRRP or E-Trunk to synchronize states and manage the detection path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If performance detection is based on point-to-point measurement in ITU-T Y.1731 protocol, then measurement simplicity is improved, but network node redundancy capability deteriorates
Solution Approach 1:
The patent merges multiple detection paths (main path and backup path) into a unified detection framework. By configuring MEPs on both main and backup nodes and establishing detection associations between them, the system combines the simplicity of point-to-point measurement with the robustness of redundancy, allowing automatic failover without manual reconfiguration.
Solution Approach 2:
The detection mechanism is designed to serve multiple functions: it can detect performance on the main path, automatically detect failures on the backup path, and seamlessly switch between them. The same detection protocol handles both normal operation and failure recovery scenarios, eliminating the need for separate detection mechanisms.
2Measurement precision
If manual reconfiguration is required after node failure switching, then detection precision is improved, but operational efficiency deteriorates
Solution Approach 1:
The patent configures detection associations in advance between main and backup nodes before any failure occurs. The backup node's MEP is pre-configured to detect performance on the backup path, and the detection association is established beforehand. When a failure occurs, the pre-configured detection mechanism immediately takes over without requiring manual reconfiguration, maintaining both precision and efficiency.
3Device complexity
If backup path performance detection is not configured, then device complexity is reduced, but service reliability deteriorates
Solution Approach 1:
The patent segments the detection function into two independent but coordinated parts: main path detection and backup path detection. Each path has its own MEP and detection association, allowing them to operate independently. This segmentation enables the backup detection to function without adding complex interactions, maintaining simplicity while ensuring reliability through independent verification of both paths.
Data Source
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AI summary
The present invention is applicable to the technical field of communications, and provides an Ethernet performance detection method and system and an optical network terminal. The method includes: receiving, by an ONT, a detection configuration instruction, and configuring a maintenance end point (MEP) according to the detection configuration instruction; configuring a performance detection path from the MEP to the VMEP according to states of the virtual maintenance end points (VMEP) configured on a main node and a backup node, wherein the VMEP includes two virtual MEPs configured on the main node and backup node, the IDs of the two virtual MEPs are identical, at the same moment, the state of one virtual MEP is main, the state of the other virtual MEP is backup, and the main node and the backup node are access aggregation gateways; and transmitting a message to a node corresponding to the virtual MEP with the main state. When the node states of the main node and backup node are switched, the optical network terminal may automatically switch the performance detection path to the node corresponding to the virtual MEP, in order to continue to perform the network performance detection.