Multipath aggregation of heterogeneous access networks

Kaspar, Dominik

doi:10.1145/2206765.2206770

Cited by 30 publications

(18 citation statements)

References 157 publications

(177 reference statements)

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“…For example, a value of −1 indicates the minimum (0 Mbps), while 0 means that Multipath TCP achieves the same goodput as regular TCP on the best path, and 1 means that Multipath TCP perfectly aggregates the available capacity. More information about the aggregation benefit metric can be found in [9,13]. Figure 4 shows the boxplots of the Mininet results.…”

Section: Mininetmentioning

confidence: 99%

Experimental evaluation of multipath TCP schedulers

Paasch

Ferlin

Alay

et al. 2014

Proceedings of the 2014 ACM SIGCOMM Workshop on Capacity Sharing Workshop

257

128

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Today many end hosts are equipped with multiple interfaces. These interfaces can be utilized simultaneously by multipath protocols to pool resources of the links in an efficient way while also providing resilience to eventual link failures. However how to schedule the data segments over multiple links is a challenging problem, and highly influences the performance of multipath protocols.In this paper, we focus on different schedulers for Multipath TCP. We first design and implement a generic modular scheduler framework that enables testing of different schedulers for Multipath TCP. We then use this framework to do an in-depth analysis of different schedulers by running emulated and real-world experiments on a testbed. We consider bulk data transfer as well as application limited traffic and identify metrics to quantify the scheduler's performance. Our results shed light on how scheduling decisions can help to improve multipath transfer.

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Section: Mininetmentioning

confidence: 99%

Experimental evaluation of multipath TCP schedulers

Paasch

Ferlin

Alay

et al. 2014

Proceedings of the 2014 ACM SIGCOMM Workshop on Capacity Sharing Workshop

257

128

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“…Multipath forwarding is the main reason of packet out-of-order [27]. Different technologies and different paths can lead to significant differences in delay and bandwidth.…”

Section: Related Workmentioning

confidence: 99%

A Performance Analysis Model of TCP over Multiple Heterogeneous Paths for 5G Mobile Services

et al. 2018

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Driven by the primary requirement of emerging 5G mobile services, the demand for concurrent multipath transfer (CMT) is still prominent. Yet, multipath transport protocols are not widely adopted and TCP-based CMT schemes will still be in dominant position in 5G. However, the performance of TCP flow transferred over multiple heterogeneous paths is prone to the link quality asymmetry, the extent of which was revealed to be significant by our field investigation. In this paper, we present a performance analysis model for TCP over multiple heterogeneous paths in 5G scenarios, where both bandwidth and delay asymmetry are taken into consideration. The evaluation adopting parameters from field investigation shows that the proposed model can achieve high accuracy in practical environments. Some interesting inferences can be drawn from the proposed model, such as the dominant factor that affect the performance of TCP over heterogeneous networks, and the criteria of determining the appropriate number of links to be used under different circumstances of path heterogeneity. Thus, the proposed model can provide a guidance to the design of TCP-based CMT solutions for 5G mobile services.

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“…We study whether MPTCP satisfies its first design goal (improve throughput), by quantifying the aggregation benefit (as defined by Kaspar in [13]). The aggregation benefit is expressed as a function between −1 and 1.…”

Section: Aggregation Benefitmentioning

confidence: 99%

On the benefits of applying experimental design to improve multipath TCP

Paasch

Khalili

Bonaventure

2013

Proceedings of the Ninth ACM Conference on Emerging Networking Experiments and Technologies

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Many scientific disciplines rely on "Experimental Design" to study various types of systems. Experimental design refers to a planned approach to experimentation that tries to provide statistical evidence to the outcome of experiments. The networking community rarely relies on such approaches, especially for real protocol implementations. Many improvements to protocols like TCP, including the recently proposed Multipath TCP, have been evaluated by considering a relatively limited set of simulations or experiments.Multipath TCP increases the goodput of a data transfer by simultaneously using multiple interfaces. It also improves load balancing thanks to dedicated congestion control. By applying experimental design, we conduct a large set of measurements inside Mininet with the Linux kernel Multipath TCP implementation, to measure its bandwidth aggregation and load balancing. Thanks to the experimental design approach, we are able to highlight several limitations of this implementation. We identify heuristics that lead to lower than expected performance and propose improvements.

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Multipath aggregation of heterogeneous access networks

Cited by 30 publications

References 157 publications

Experimental evaluation of multipath TCP schedulers

Experimental evaluation of multipath TCP schedulers

A Performance Analysis Model of TCP over Multiple Heterogeneous Paths for 5G Mobile Services

On the benefits of applying experimental design to improve multipath TCP

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