Enhancing and Comparing Fast Reroute Algorithms with eBPF
Marvin Weiler, Stephanie Althoff, Klaus-Tycho Foerster · 2025
We introduce a framework for comparing the performance of fast failover algorithms, with a particular focus on implementations using Extended Berkeley Packet Filter (eBPF) and eXpress Data Path within the Linux kernel. The study addresses the limitations of traditional failover methods, which often result in suboptimal routing and increased latency, by proposing an eBPF- and Netfilter-based solution that offers finer control and faster recovery from network failures.