Then Network Traffic Monitoring Lab at FIT CTU Prague is a research group embedded in the operations of CESNET, the Czech national research and education network.

We work at the intersection of network security, high-performance computing, big data, machine learning, and AI.

Open Data & Tools

We believe in open science. Our datasets and software are available to the research community:

• CESNET-TimeSeries24 — Time series dataset for anomaly detection and forecasting
• CESNET-TLS22 — 42GB of labeled TLS 1.3 encrypted traffic
• IPFIXcol2 — High-performance IPFIX collector
• NEMEA — Modular stream analysis framework
• CESNET-DataZoo — Standardized datasets for traffic ML

Explore all datasets →
Browse software tools →

Partners

We collaborate closely with:

• CESNET — Operator of the Czech NREN, primary research partner
• Czech universities — Collaborative research on network security
• International collaboration - Collaborative research & Knowledge sharing
• Industry partners — Technology transfer and applied research

The lab evolved from a hardware/FPGA focus to emphasize software tools, large-scale data analysis, and security research. Our work directly supports the security operations of the Czech academic network.