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QoS pattern analysis in inter-domain environment

• QoS pattern detection for communication networks - congestion, abnormal patterns (“QoS outliers”) daily planning, bottleneck detection and prediction
• QoS patterns of specific parameter such as delay, delay jitter, throughput and packet loss.
• Patterns of multivariate QoS time series data.
• QoS patterns used for automated detection and localisation of specific inter-domain problems (e.g. DoS attacks, bottleneck and excess capacity)
• Spatial composition QoS patterns in inter-domain environment
• Integration of QoS pattern detection algorithms for analysis of anomalies in inter-connected domain infrastructure

Select Tool

• Spatio-temporal QoS analyser
  

Definition of QoS pattern in INTERMON

• Temporal QoS pattern is defined as a specific recognisable structure in the plot of QoS time series data describing performance of aggregate traffic or traffic class for a given network connection.
• „Outlier“ is a QoS pattern, describing an abnormal QoS behaviour caused by anomaly events and routing problems
• Examples - delay “outliers”, “congestion” pattern, “break” patterns

 

QoS Pattern types: basic and composite

• Basic: extreme value, plain, increase and decrease pattern.
• Composite: Sequences of basic patterns could be used to define “composite” patterns for QoS analysis similar to “Head and Shoulders” in economy. Example in QoS Behaviour study - step, peak, mountain

Example for composite pattern