Improved fairness and reduced queue pressure for BBR v1

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frank mungau

Feb 5, 2021, 9:22:47 AM2/5/21
to BBR Development
Hi Neal,

Please find below a link to the blog describing simple rule changes for asymptotic pacing and strict packet conservation during recovery in BBR v1.

Results show significant improvements in fairness for RTT ratios of up to 10X and greatly reduced queue pressure exerted with relatively simple rule changes.

Rule changes are kept at a minimum to conserve current BBR v1 advantages while enhancing performance only where necessary.

The relevant cpp code is available on github (with variables aligned with current spec and Linux implementation) and I have started working on NS-3 implementations as the next step - happy to collaborate on this effort to make faster progress.  

Best regards,

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