> *) Pluggable congestion control

Sounds reasonable, but could we get more detail on what's in and out of
scope for these two projects -- e.g., is pluggable congestion control
limited to TCP or also applicable to SCTP?

The goal is to support SCTP as well as TCP. A new type of loadable kernel modules will implement congestion control algorithms. More specifically, the function of each algorithm will be to dynamically adjust, increase or decrease, sending rate based on its unique notion of available bandwidth and presence of congestion in the network.

Also in scope: algorithm administration via ipadm(1M); new socket options for setting/getting algorithms and their parameters; implementation of several algorithms, currently planned: HighSpeed, CUBIC, Westwood+, Vegas.

Not in scope: wireless networking. Even though wireless would benefit from some algorithms such as Westwood+, it is not a focus point for the initial phase of this project.

-Artem
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