Coupled Congestion Control for Multipath Transport Protocols

Handley, Mark; Raiciu, Costin; Wischik, Damon

doi:10.17487/rfc6356

Cited by 349 publications

(361 citation statements)

References 4 publications

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“…Releasing resources on a congested path decreases the loss rate and improves the stability of the whole network. In [18] three design goals are set for RP-based multipath CCs for a TCP-friendly Internet deployment. These rules are: 1) Improve throughput: A multipath flow should perform at least as well as a singlepath flow on the best path.…”

Section: A Congestion Controlmentioning

confidence: 99%

“…3) Balance congestion: A multipath flow should move as much traffic as possible off its most congested paths. The CC proposed for MPTCP was designed with these goals in mind already [18] . The CC of the original CMT-SCTP proposal did not use RP, but we already proposed an algorithm for CMT-SCTP which uses RP and fulfills the requirements (CMT/RPv2, [12]).…”

Section: A Congestion Controlmentioning

confidence: 99%

“…The CC of the original CMT-SCTP proposal did not use RP, but we already proposed an algorithm for CMT-SCTP which uses RP and fulfills the requirements (CMT/RPv2, [12]). This algorithm behaves slightly different from the MPTCP CC (see [18]) and, therefore, we also adapted the MPTCP CC to SCTP which will be called " MPTCP-like" in the following. While both mechanisms are still candidates for CMT-SCTP in the IETF discussion, we will only use the MPTCP-like algorithm in this paper to get an unbiased comparison with MPTCP.…”

Section: A Congestion Controlmentioning

confidence: 99%

“…In order to avoid an unfair overall bandwidth allocation, the congestion window growth behavior of the CCs is adapted: a per-flow aggressiveness factorâ is used to bring the increase and decrease of c P into equilibrium. The MPTCP CC [18] is based on counting bytes as TCP and MPTCP are byte-oriented protocols. SCTP, however, is a message-oriented protocol and the CC is based on counting bytes which are limited in size by the Maximum Transmission Unit (MTU).…”

Section: A Congestion Controlmentioning

confidence: 99%

“…For MPTCP, the MPTCP CC mechanism as defined in [18] has been used, CMT-SCTP used the MPTCP-like CC introduced in Section II-A to get an unbiased comparison. If not specified otherwise, the following configuration parameters have been used for measurements:…”

Section: B Experiments Parametersmentioning

confidence: 99%

See 4 more Smart Citations

Comparison of Multipath TCP and CMT-SCTP based on intercontinental measurements

Becke

Adhari

Rathgeb

et al. 2013

2013 IEEE Global Communications Conference (GLOBECOM)

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Abstract-The market penetration of access devices with multiple network interfaces has increased dramatically over the last few years. As a consequence, there is a strong interest to use all of the available interfaces concurrently to improve data throughput. Corresponding extensions of established Transport protocols are receiving considerable attention within research and standardization.Currently two approaches are in the focus of the IETF: The Multipath TCP (MPTCP) extension for TCP and the Concurrent Multipath Transfer extension for SCTP (CMT-SCTP). This paper evaluates and compares implementations of these two loadsharing protocols by using both lab measurements and intercontinental testbed realized via the Internet between Europe and China. The experiments show that some performance critical aspects have not been taken into account in previous studies. Furthermore, they show that the simple scenario with two disjoint paths, which is typically used for evaluation, does not sufficiently cover the real Internet environment. Based on these insights, we highlight that the different path management strategies of the two protocols have a significant impact on their performance in real Internet scenarios.

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Section: A Congestion Controlmentioning

confidence: 99%

Section: A Congestion Controlmentioning

confidence: 99%

Section: A Congestion Controlmentioning

confidence: 99%

Section: A Congestion Controlmentioning

confidence: 99%

Section: B Experiments Parametersmentioning

confidence: 99%

See 3 more Smart Citations

Comparison of Multipath TCP and CMT-SCTP based on intercontinental measurements

Becke

Adhari

Rathgeb

et al. 2013

2013 IEEE Global Communications Conference (GLOBECOM)

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A reliable alternating multi‐path transmission control protocol scheduling for bandwidth aggregation performance

Bencheikh

Zouaoui

Taleb

et al. 2023

Concurrency and Computation

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SummaryThe Multi‐Path Transmission Control Protocol is a new generation protocol for the transport layer which allows multihomed devices to exploit simultaneously their own interfaces. This feature would normally lead to some high‐performance achievement in regard to regular TCP. However, the heterogeneous paths might cause the occurrence of the 'out‐of‐order' problem which requires the intervention of a more efficient scheduler to reach a high level of global bandwidth utilization. Since scheduling plays a key role in performance improvements, several studies have been implemented exploiting this idea, namely those that adopt the reactive approach and those others adopting the proactive one. In this paper, our goal is to improve the multipath throughput. The testbed experimentation consists primarily in the evaluation and analysis of the behaviour of different recent scheduling approaches with an asymmetric paths topology. Then, we propose an alternating scheduling approach which shed the light on bandwidth utilization. The results show that this approach is a more efficient solution than taking the reactive and proactive ones separately as it is based on a preliminary study that we conducted on the main performance and reliability parameters and has been implemented in the asymmetric multipath networks. This technique has led to a smart scheduling that provides a high level of throughput aggregation.

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Shared bottleneck detection based on trend line regression for multipath transmission

Zhang

Lei

Zhang

et al. 2020

Int J Communication

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SummaryCurrent proposed congestion control algorithms for multipath transmission couple all subflows together to maintain bottleneck fairness by assuming that the subflows traverse a common bottleneck. The coupled form congestion control algorithms restrict the multipath session to gain better throughput in non‐shared bottleneck situation. The throughput of a multipath session following independent rate control is larger than the throughput achieved by coupled form congestion control algorithm. The key point is to find a method to detect whether flows share a common bottleneck. If the subflows of a multipath session are detected out traversing a common bottleneck, the sender could perform coupled congestion control algorithm to guarantee bottleneck fairness and follow independent congestion control algorithm otherwise to improve throughput. Deduced from fluid model of additive increase multiplicative decrease (AIMD) rule, the delay samples can be linearly fitted when the bottleneck link falls into congestion. A delay trend line regression (TR) method is proposed for shared bottleneck detection. The delay slopes in close proximity indicate that the flows traverse the same bottleneck in great probability. Extensive simulations are performed to validate the effectiveness of TR algorithm in shared bottleneck detection. It is further implemented in multipath QUIC Golang codebase to work in collaboration with linked increases algorithm (LIA). Results show a multipath QUIC session with two subflows can gain higher throughput in non‐shared bottleneck situation and is less aggressive in shared bottleneck cases with the implementation of shared bottleneck detection algorithm.

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Coupled Congestion Control for Multipath Transport Protocols

Cited by 349 publications

References 4 publications

Comparison of Multipath TCP and CMT-SCTP based on intercontinental measurements

Comparison of Multipath TCP and CMT-SCTP based on intercontinental measurements

A reliable alternating multi‐path transmission control protocol scheduling for bandwidth aggregation performance

Shared bottleneck detection based on trend line regression for multipath transmission

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