BBR' - an Implementation of BBR for ns-3

[Mark Claypool]

I'm pleased to announce the release of BBR' - an Implementation of Bottleneck Bandwidth and Round-trip Time congestion control for ns-3. A git repository is available at:

  https://github.com/mark-claypool/bbr

The repository has details (and a patchfile) for how to integrate BBR' with ns-3 (v3.27).

The BBR' implementation includes the core congestion control in BBR: max BW, min RTT, BDP computation, and protocol states of STARTUP, DRAIN, PROBE_BW and PROBE_RTT.  Pacing is implemented outside of the BBR' code at the TCP layer by modifying some ns-3 classes (e.g., TcpSocketBase).

Note: some aspects of BBR are still not implemented in BBR', as detailed in a subsection of the repository README (https://github.com/mark-claypool/bbr#todo).  And probably most parts of BBR' could use more scrutiny and evaluation.

For more details, there is an associated technical report describing the BBR' implementation, providing validation and a bit of evaluation at:

  Mark Claypool, Jae Chung, and Feng Li. "BBR' - An Implementation of Bottleneck Bandwidth and Round-trip Time Congestion Control for

  ns-3", Technical Report WPI-CS-TR-18-01, Computer Science Department, Worcester Polytechnic Institute, January 2018.

  Online: ftp://ftp.cs.wpi.edu/pub/techreports/pdf/18-01.pdf

We also have a condensed version of the TR submitted to WNS3 (https://www.nsnam.org/overview/wns3/wns3-2018/call-for-papers/), but won't hear the results of that submission until March.

Comments welcome!

-- Mark

[Neal Cardwell]

On Fri, Feb 23, 2018 at 2:50 PM, Mark Claypool <mark.c...@gmail.com> wrote:
> I'm pleased to announce the release of BBR' - an Implementation of
> Bottleneck Bandwidth and Round-trip Time congestion control for ns-3. A git
> repository is available at:
>
> https://github.com/mark-claypool/bbr

Thank you, Mark! This looks very nice, and seems like a very nice
contribution to the congestion control research community. I
particularly want to thank you for all the nice documentation and
graphs. I know that folks have expressed an interest in an ns-3
implementation of BBR for a while, and so this will be very nice to
have.

Thanks!
neal

[Silvia Lins]

Hi Mark, great contribution! Is the techreport in [1] available somewhere else? I am trying to download it but It is not availabie.

Cheers,

[1] ftp://ftp.cs.wpi.edu/pub/techreports/pdf/18-01.pdf

_

[Neal Cardwell]

Hi Silvia,

The reference at the foot of the page at:

  https://github.com/mark-claypool/bbr

currently points to:

  http://web.cs.wpi.edu/~claypool/papers/bbr-prime/

which has links to the paper PDF, slides, and talk video.

Hope that helps.

best,

neal

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[Silvia Lins]

Sure! Thanks Neal, already working on it.

BR,

Silvia

--

Silvia Lins

Lasse - Sensors and Embedded Systems Laboratory

https://www.lasse.ufpa.br/

+55 91 3201-7181

Federal University of Pará - UFPA
Belém - PA  - Brazil