
Deploying BBR v2 on geo-distributed cloud servers
Google’s new transport protocol BBR offers significant improvements in the queueing and throughput performance of connections when compared to the state-of-the-art TCP CUBIC. For example, TCP BBR flows show a 2 to 20 times improvement in throughput when compared to TCP CUBIC. However, deployment on geo-distributed cloud servers has revealed a problem: a consistent and sometimes severe bandwidth disparity amongst competing flows with different Round-Trip-Times (RTTs). In fact,