Name
Abstract | ||
|---|---|---|
The alpha version of Bottleneck Bandwidth and Round-trip Time version 2 (BBRv2) has been recently presented, which aims to mitigate the shortcomings of its predecessor, BBR version 1 (BBRv1). Previous studies show that BBRv1 provides a high link utilization and low queuing delay by estimating the available bottleneck bandwidth. However, its aggressiveness induces unfairness when flows i) use different congestion control algorithms, such as CUBIC, and ii) have distinct round-trip times (RTTs). This paper presents an experimental evaluation of BBRv2, using Mininet. Results show that the coexistence between BBRv2-CUBIC is enhanced with respect to that of BBRv1-CUBIC, as measured by the fairness index. They also show that BBRv2 mitigates the RTT unfairness problem observed in BBRv1. Additionally, BBRv2 achieves a better fair share of the bandwidth than its predecessor when network conditions such as bandwidth and latency dynamically change. Results also indicate that the average flow completion time of concurrent flows is reduced when BBRv2 is used. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1109/TSP49548.2020.9163512 | 2020 43rd International Conference on Telecommunications and Signal Processing (TSP) |
Keywords | DocType | ISBN |
Bottleneck Bandwidth and Round-trip Time (BBR),congestion control,bandwidth-delay product (BDP),CUBIC,router buffer size,RTT unfairness | Conference | 978-1-7281-6377-2 |
Citations | PageRank | References |
0 | 0.34 | 5 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| José Gómez | 1 | 11 | 2.44 |
| Elie Kfoury | 2 | 0 | 0.34 |
| Jorge Crichigno | 3 | 168 | 14.41 |
| Elias Bou-Harb | 4 | 207 | 26.40 |
| Gautam Srivastava | 5 | 20 | 11.54 |