  In 2022 the Russian invasion of Ukraine began. It is known that Ukraine faced
outages because of the damage to their infrastructure. It is also known that
Russia was boycotted by the international community. However the impact on the
telecommunications of the two countries remains unknown. In this paper we
quantified the degree to which the Internet was affected in both countries by
analyzing routing tables from five large Internet Exchange Points (IXPs). IXPs
provide a central point of interconnection where internet traffic can be freely
exchanged between Autonomous Systems (ASes). This centrality makes IXPs a good
vantage point for analyzing changes in the Internet infrastructure. With data
collected before and after the start of the conflict we observed considerable
damage to the Ukrainian Internet network with numerous outages and minimal
damage to the Russian network. An average of 11.12% of Ukrainian ASes were
unreachable at each IXP. We identified the biggest outages and the events
responsible for them. This paper highlights resilience issues during conflicts
to the network and management community, and serves as a basis for future more
in-depth research.
