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Impact of TCP BBR on CUBIC traffic: a mixed workload evaluation
Karlstad University.
Karlstad University.
Karlstad University.
Karlstad University.
Vise andre og tillknytning
2018 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

A recently proposed congestion control algorithm (CCA) called BBR (Bottleneck Bandwidth and Round-trip propagation time) has shown a lot of promise in avoiding some of the problems that have plagued loss-based CCAs. Nevertheless, deployment of a new alternative algorithm requires a thorough evaluation of the effect of the proposed alternative on established transport protocols like TCP CUBIC. Furthermore, evaluations that consider the heterogeneity of Internet traffic sizes would provide a useful insight into the deployability of an algorithm that introduces sweeping changes across multiple algorithm components. Yet, most evaluations of BBR’s impact and competitive fairness have focused on the steady-state performance of large flows. This work expands on previous studies of BBR by evaluating BBR’s impact when the traffic consists of flows of different sizes. Our experiments show that under certain circumstances BBR’s startup phase can result in a significant reduction of the throughput of competing large CUBIC flows and the utilization of the bottleneck link. In addition, the steady-state operation of BBR can have negative impact on the performance of bursty flows using loss-based CCAs over bottlenecks with buffer sizes as high as two times the bandwidth-delay product.

sted, utgiver, år, opplag, sider
2018. s. 218-226
HSV kategori
Identifikatorer
URN: urn:nbn:se:hkr:diva-18759DOI: 10.1109/ITC30.2018.00040OAI: oai:DiVA.org:hkr-18759DiVA, id: diva2:1254553
Konferanse
2018 30th International Teletraffic Congress
Tilgjengelig fra: 2018-10-09 Laget: 2018-10-09 Sist oppdatert: 2018-10-09bibliografisk kontrollert

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