Experimental Demonstration and Results of Cross-layer Monitoring Using OpenNOP: an Open Source Network Observability Platform

Ensuring the smooth operation and optimal performance of communication networks requires continuous moni- toring of key network elements. Network operators can detect and prevent potential issues by monitoring various real-time network parameters. This paper proposes and presents results from the implementation of a cross- layer monitoring system for OpenROADM-compliant optical transport networks using an open source network observability platform called OpenNOP, and for the first time includes simultaneous optical layer and transport layer metrics. It leverages open source tools as a cost-effective and efficient solution for network monitoring and management. OpenNOP collects and analyzes data from various network layers, including physical, data link, network, and transport layers. OpenNOP can also ingest status and log information. This data is all stored in a common time-series database. The results show that OpenNOP can provide comprehensive network visibility and effective cross-layer monitoring of OpenROADM-based networks.