Are there any plans to import interfaces from the crossbow project to
provide hints to IP about what the available bandwidth might be?
Not at this point. We just follow the original RFC/whitepaper algorithm
definitions.
Or is available bandwidth only a result of discovery through
sending/receiving traffic?
Will all of the existing congestion control algorithms be modified to
use the new interfaces delivered by this?
There is only one existing CC algorithm, NewReno, and yes, it will be
converted to the new interfaces.
If so, will this include our implementation of Explicit Congestion
Notification (ECN) for TCP?
ECN, as well as ICMP Source Quench, implementations will remains
unchanged in the sense that they will continue to trigger the same
congestion events (packet loss, RTO), causing the sending rate to slow
down according to the active CC algorithm.
-Artem
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