Event Report Correlation for Network Management Systems
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Solution Overview
Problem
Current network management systems face challenges in efficiently correlating and managing event reports, leading to event floods and poor correlation between physical and logical resource notifications, which results in redundant alarms and inefficient network supervision.
Innovation Solution
An apparatus and method that checks and correlates notification identifiers between primary and secondary notifications, generating correlation indications to provide coordinated status change indications to management devices, reducing redundant notifications and enhancing alarm quality by mapping vendor-specific resources to vendor-independent object models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If event reports are forwarded to NMS without correlation processing, then all alarm information is preserved, but event floods occur and network supervision efficiency deteriorates
Solution Approach 1:
The EMS performs preliminary correlation processing of event reports before forwarding them to the NMS. By checking notification identifiers and generating correlation indications in advance, the system filters and organizes events at the source, preventing event floods from reaching the NMS while ensuring all relevant alarm information is preserved and properly correlated.
2Productivity
If correlation processing is performed at NMS level, then network supervision efficiency improves, but information loss occurs and device complexity increases
Solution Approach 1:
The EMS acts as an intermediary between the event sources and the NMS. It performs correlation processing and generates correlation indications that are forwarded to the NMS, enabling the NMS to receive pre-processed, correlated event information without having to implement complex correlation logic itself. This distributes the processing load and preserves information integrity.
3Manufacturing precision
If vendor-specific object models are used, then manufacturing precision improves, but adaptability to different NMS capabilities deteriorates
Solution Approach 1:
The correlation indication mechanism is designed to be vendor-independent and universally applicable. By using standardized notification identifiers and correlation indications that can be mapped to different object models, the system maintains precise event correlation while adapting to various NMS capabilities and vendor-specific implementations.
Data Source
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AI summary
It is provided a method, comprising checking if a notification identifier comprised by a received primary notification and a correlation identifier comprised by a received secondary notification match each other, wherein the primary notification is different from the secondary notification; generating, if the notification identifier and the correlation identifier match each other, a correlation indication; providing, to a management device, if the notification identifier and the correlation identifier match each other, a primary forward status change indication generated based on a primary status change indication comprised in the primary notification, a secondary forward status change indication generated based on a secondary status change indication comprised in the secondary notification, and the correlation indication.