How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP

Costin Raiciu; Christoph Paasch; Sebastien Barre; Alan Ford; Michio Honda; Fabien Duchene; Olivier Bonaventure; Mark Handley

How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP

Costin Raiciu, Christoph Paasch, Sebastien Barre, Alan Ford, Michio Honda, Fabien Duchene, Olivier Bonaventure, Mark Handley

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Networks have become multipath: mobile devices have multiple radio interfaces, datacenters have redundant paths and multihoming is the norm for big server farms. Meanwhile, TCP is still only single-path.

Is it possible to extend TCP to enable it to support multiple paths for current applications on today’s Intenet? The answer is positive. We carefully review the constraints—partly due to various types of middleboxes—that influenced the design of Multipath TCP and show how we handled them to achieve its deployability goals.

We report our experience in implementing MultipathTCP in the Linux kernel and we evaluate its performance. Our measurements focus on the algorithms needed to efficiently use paths with different characteristics, notably send and receive buffer tuning and segment reordering. We also compare the performance of our implementation with regular TCP on web servers. Finally, we discuss the lessons learned from designing MPTCP.

Original language	English
Title of host publication	9th USENIX Symposium on Networked Systems Design and Implementation (NSDI 12)
Place of Publication	San Jose, CA
Publisher	USENIX Association
Pages	399-412
Number of pages	14
ISBN (Print)	978-931971-92-8
Publication status	Published - 27 Apr 2012
Event	9th USENIX Symposium on Networked Systems Design and Implementation - San Jose, United States Duration: 25 Apr 2012 → 27 Apr 2012 Conference number: 9 https://www.usenix.org/conference/nsdi12

Symposium

Symposium	9th USENIX Symposium on Networked Systems Design and Implementation
Abbreviated title	NSDI 2012
Country	United States
City	San Jose
Period	25/04/12 → 27/04/12
Internet address	https://www.usenix.org/conference/nsdi12

Access to Document

https://www.usenix.org/conference/nsdi12/technical-sessions/presentation/raiciuLicence: All Rights Reserved

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Raiciu, C., Paasch, C., Barre, S., Ford, A., Honda, M., Duchene, F., Bonaventure, O., & Handley, M. (2012). How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP. In 9th USENIX Symposium on Networked Systems Design and Implementation (NSDI 12) (pp. 399-412). USENIX Association. https://www.usenix.org/conference/nsdi12/technical-sessions/presentation/raiciu

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title = "How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP",

abstract = "Networks have become multipath: mobile devices have multiple radio interfaces, datacenters have redundant paths and multihoming is the norm for big server farms. Meanwhile, TCP is still only single-path.Is it possible to extend TCP to enable it to support multiple paths for current applications on today{\textquoteright}s Intenet? The answer is positive. We carefully review the constraints—partly due to various types of middleboxes—that influenced the design of Multipath TCP and show how we handled them to achieve its deployability goals.We report our experience in implementing MultipathTCP in the Linux kernel and we evaluate its performance. Our measurements focus on the algorithms needed to efficiently use paths with different characteristics, notably send and receive buffer tuning and segment reordering. We also compare the performance of our implementation with regular TCP on web servers. Finally, we discuss the lessons learned from designing MPTCP.",

author = "Costin Raiciu and Christoph Paasch and Sebastien Barre and Alan Ford and Michio Honda and Fabien Duchene and Olivier Bonaventure and Mark Handley",

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booktitle = "9th USENIX Symposium on Networked Systems Design and Implementation (NSDI 12)",

publisher = "USENIX Association",

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Raiciu, C, Paasch, C, Barre, S, Ford, A, Honda, M, Duchene, F, Bonaventure, O & Handley, M 2012, How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP. in 9th USENIX Symposium on Networked Systems Design and Implementation (NSDI 12). USENIX Association, San Jose, CA, pp. 399-412, 9th USENIX Symposium on Networked Systems Design and Implementation, San Jose, United States, 25/04/12. <https://www.usenix.org/conference/nsdi12/technical-sessions/presentation/raiciu>

How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP. / Raiciu, Costin; Paasch, Christoph; Barre, Sebastien; Ford, Alan; Honda, Michio; Duchene, Fabien; Bonaventure, Olivier; Handley, Mark.

9th USENIX Symposium on Networked Systems Design and Implementation (NSDI 12). San Jose, CA : USENIX Association, 2012. p. 399-412.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Raiciu, Costin

AU - Paasch, Christoph

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AU - Ford, Alan

AU - Honda, Michio

AU - Duchene, Fabien

AU - Bonaventure, Olivier

AU - Handley, Mark

N1 - Conference code: 9

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N2 - Networks have become multipath: mobile devices have multiple radio interfaces, datacenters have redundant paths and multihoming is the norm for big server farms. Meanwhile, TCP is still only single-path.Is it possible to extend TCP to enable it to support multiple paths for current applications on today’s Intenet? The answer is positive. We carefully review the constraints—partly due to various types of middleboxes—that influenced the design of Multipath TCP and show how we handled them to achieve its deployability goals.We report our experience in implementing MultipathTCP in the Linux kernel and we evaluate its performance. Our measurements focus on the algorithms needed to efficiently use paths with different characteristics, notably send and receive buffer tuning and segment reordering. We also compare the performance of our implementation with regular TCP on web servers. Finally, we discuss the lessons learned from designing MPTCP.

AB - Networks have become multipath: mobile devices have multiple radio interfaces, datacenters have redundant paths and multihoming is the norm for big server farms. Meanwhile, TCP is still only single-path.Is it possible to extend TCP to enable it to support multiple paths for current applications on today’s Intenet? The answer is positive. We carefully review the constraints—partly due to various types of middleboxes—that influenced the design of Multipath TCP and show how we handled them to achieve its deployability goals.We report our experience in implementing MultipathTCP in the Linux kernel and we evaluate its performance. Our measurements focus on the algorithms needed to efficiently use paths with different characteristics, notably send and receive buffer tuning and segment reordering. We also compare the performance of our implementation with regular TCP on web servers. Finally, we discuss the lessons learned from designing MPTCP.

M3 - Conference contribution

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BT - 9th USENIX Symposium on Networked Systems Design and Implementation (NSDI 12)

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