Analysis of sfqCoDel for Active Queue Management

Rao, V. Preethi; Tahiliani, Mohit P.; Shenoy, Udaya Kumar K.

doi:10.1109/icadiwt.2014.6814669

Cited by 10 publications

(8 citation statements)

References 2 publications

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“…Rao et al [17] perform an analysis of the CoDel algorithm combined with a simulation study that compares it to the SFQ-CoDel algorithm. The paper concludes that SFQ-CoDel for many scenarios outperforms plain CoDel.…”

Section: Related Workmentioning

confidence: 99%

The Good, the Bad and the WiFi: Modern AQMs in a residential setting

2015

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a b s t r a c tSeveral new active queue management (AQM) and hybrid AQM/fairness queueing algorithms have been proposed recently. They seek to ensure low queueing delay and high network goodput without requiring parameter tuning of the algorithms themselves. However, extensive experimental evaluations of these algorithms are still lacking. This paper evaluates a selection of bottleneck queue management schemes in a test-bed representative of residential Internet connections of both symmetrical and asymmetrical bandwidths as well as WiFi. Latency under load and the performance of VoIP and web traffic patterns are evaluated under steady state conditions. Furthermore, the impact of the algorithms on fairness between TCP flows with different RTTs, and also the transient behaviour of the algorithms at flow startup is examined. The results show that while the AQM algorithms can significantly improve steady state performance, they exacerbate TCP flow unfairness. In addition, the evaluated AQMs severely struggle to quickly control queueing latency at flow startup, which can lead to large latency spikes that hurt the perceived performance. The fairness queueing algorithms almost completely alleviate the algorithm performance problems, providing the best balance of low latency and high throughput in the tested scenarios. However, on WiFi the performance of all the tested algorithms is hampered by large amounts of queueing in lower layers of the network stack inducing significant latency outside of the algorithms' control.

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Section: Related Workmentioning

confidence: 99%

The Good, the Bad and the WiFi: Modern AQMs in a residential setting

2015

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“…Such a queue management scheme usually takes the form of an Active Queue Management (AQM) algorithm, combined with a form of fairness queueing (FQ). Several such schemes exist, and extensive evaluation is available in the literature (e.g., [1]- [3], [9]- [11]).…”

Section: B Queue Managementmentioning

confidence: 99%

Piece of CAKE: A Comprehensive Queue Management Solution for Home Gateways

Høiland-Jørgensen

Taht²,

Morton³

2018

2018 IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN)

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The last several years has seen a renewed interest in smart queue management to curb excessive network queueing delay, as people have realised the prevalence of bufferbloat in real networks.However, for an effective deployment at today's last mile connections, an improved queueing algorithm is not enough in itself, as often the bottleneck queue is situated in legacy systems that cannot be upgraded. In addition, features such as per-user fairness and the ability to de-prioritise background traffic are often desirable in a home gateway.In this paper we present Common Applications Kept Enhanced (CAKE), a comprehensive network queue management system designed specifically for home Internet gateways. CAKE packs several compelling features into an integrated solution, thus easing deployment. These features include: bandwidth shaping with overhead compensation for various link layers; reasonable DiffServ handling; improved flow hashing with both per-flow and per-host queueing fairness; and filtering of TCP ACKs.Our evaluation shows that these features offer compelling advantages, and that CAKE has the potential to significantly improve performance of last-mile internet connections.

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“…They observed that RED could be considered as a good candidate to tackle Bufferbloat [6]. Rao V. et al [17] has performed a comprehensive analysis of sfqCoDel for Active Queue Management. They compared sfqCoDel with CoDel in presence of two TCP variants TCP-SACK and Cubic, and found that sfqCoDel is much better than CoDel in certain areas where CoDel fails to perform well.…”

Section: Related Workmentioning

confidence: 99%

Interaction of High Speed TCPs with Recent AQMs through Experimental Evaluation

Kushwaha¹,

Ratneshwer²

2016

IJCNIS

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Abstract-Congestion control approaches, source based approach and router based approach have their own limitations. In source based approach, it is difficult to get correct location of congestion and without proper admission control; we cannot effectively manage the congestion problem. Thus both the approaches have to work in coordination for effective congestion control. In this context, an interaction study plays an important role to verify how a TCP implemented at source end works with Active Queue Management at router end. In this paper, we analyzed the performance of different high speed TCP variants at the source end with some recent AQM approaches: CoDel and sfqCoDel. The main objective of this work is to obtain the interaction patterns of different high speed TCP variants like: HTCP, Compound, HSTCP, Scalable and Cubic with recently proposed AQMs: CoDel and sfqCoDel. Simulation results show that that if we want to achieve a better throughput, minimum delay and improved fairness simultaneously, Cubic-sfqCoDel may be a good choice of TCP-AQM combinations for high speed networks.

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Analysis of sfqCoDel for Active Queue Management

Cited by 10 publications

References 2 publications

The Good, the Bad and the WiFi: Modern AQMs in a residential setting

The Good, the Bad and the WiFi: Modern AQMs in a residential setting

Piece of CAKE: A Comprehensive Queue Management Solution for Home Gateways

Interaction of High Speed TCPs with Recent AQMs through Experimental Evaluation

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