
4/4/2023 · David Belson
What this post added
This post details how Cloudflare Radar observed and analyzed a significant outage experienced by Virgin Media (AS5089) in the UK. It provides concrete data on traffic drops and correlates them with BGP announcement and withdrawal activity, demonstrating the practical application of network monitoring and analysis in understanding and reporting on internet disruptions. The post also highlights the cascading effect of such outages, including the unavailability of the ISP's own status page due to its DNS nameservers being hosted within the affected network.