[rmcat] NADA Implementation in Mozilla

["Xiaoqing Zhu (xiaoqzhu)" <[e-mail]>]

Hi all,

A while back we presented some initial evaluation results of the NADA implementation in the open-source Mozilla browser under various real-world settings at IETF-106<https://www.ietf.org/proceedings/106/slides/slides-106-rmcat-nada-update-01>. After further tinkering, we are happy to share a cleaned-up version of our implementation rebased to a recent version of the Mozilla code:

https://github.com/sergio-mena/gecko-dev/tree/nada

It supports the use of either one-way-delay (OWD) or round-trip-time (RTT) as the congestion signal for NADA, and includes all algorithmic features for congestion control as described in the corresponding RFC<https://tools.ietf.org/html/rfc8698>. Some illustrative results from running the modified Firefox Nightly browser using the default algorithm, or OWD/RTT-based NADA can be found here<https://www.dropbox.com/s/g3idujywj573gax/2020-12-07-nada-eval-in-mozilla.pdf?dl=0>.

For your convenience, this branch also contains a folder. It contains brief instructions and a utility python script for post-processing the logs and plotting the graphs (as shown in the link above):

https://github.com/sergio-mena/gecko-dev/tree/nada/nada_eval

Since this effort has spanned over multiple years, we’ve rebased our code twice along the way to catch up with major changes in the Mozilla base code. Those rebases required us to squash our commit history. So we are also sharing two branches below for archiving the original commit history:

https://github.com/sergio-mena/gecko-dev/tree/nada_rebase_0
https://github.com/sergio-mena/gecko-dev/tree/nada_rebase_1

Please feel free to check out the above. Let us know if you are interested in integrating it in your WebRTC-based app or testing it out in the real-world – always happy to jump on a call for that 😊

Thanks,
Sergio and Xiaoqing