Re:BBR, the new kid on the TCP block
by dsr_ on Tuesday May 09, 2017 @06:54AM
(#14298957)
It also doesn't discuss competition between BBR users. Playing nicely with your neighbors is important for the health of the Internet.
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| on HN ]
Several BBR flows do actually converge quite nicely to a fair share of bandwidth. Take a look at the presentation the guys from google gave at the IETF 97 in Seoul: https://www.ietf.org/proceedings/97/slides/slides-97-iccrg-b...
I think there is also a recording of that session somewhere on youtube.
Also, the complete paper can be downloaded for free at http://queue.acm.org/detail.cfm?id=3022184
It doesn't discuss competition with either many users, with things like webrtc, or with those evil dial-a-speed schemes.
The internet is complex.
However, since the dial-a-speed evildoers haven't caused much controversy in the grand scheme of things, I don't think BPR will do real harm in that case.
I'm more concerned about unloaded parts of a circuit. Suppose some BPR streams fill one hop, and share other, higher-capacity, hops with Reno. Does Reno do as well then as it would if the BPR streams were Reno?