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Impact of TCP BBR on CUBIC Traffic : A mixed workload evaluation

Hurtig, Per, 1980- (author)
Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Karlstad University
Haile, Habtegebreil Kassaye (author)
Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Karlstad University
Grinnemo, Karl-Johan, 1968- (author)
Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Karlstad University
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Brunström, Anna, 1967- (author)
Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Karlstad University
Atxutegi, Eneko (author)
University of the Basque Country, Spain,Spain,Spanien
Liberal, Fidel (author)
University of the Basque Country, Spain,Spain,Spanien
Arvidsson, Åke (author)
Kristianstad University
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 (creator_code:org_t)
IEEE, 2018
2018
English.
In: Proceedings of the 30th International Teletraffic Congress, ITC 2018. - : IEEE. - 9780988304550 ; , s. 218-226
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • 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. 

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
NATURVETENSKAP  -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
NATURAL SCIENCES  -- Computer and Information Sciences -- Computer Sciences (hsv//eng)

Keyword

BBR
Congestion Control
CUBIC
Startup
Steady state
TCP
Bandwidth
Congestion control (communication)
Reactor startup
Traffic congestion
Alternative algorithms
Bandwidth delay product
Bottleneck bandwidth
Steady state performance
Steady-state operation
Workload evaluation
Transmission control protocol
Computer Science
Datavetenskap

Publication and Content Type

ref (subject category)
kon (subject category)

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