On 02/28/2016 04:53, Polina Goltsman wrote:



    [..]
Also, is it normal that NewReno resets its congestion window (to initcwnd)
after each packet loss aka.

More an artefact of FreeBSD's NewReno implementation temporarily overloading 
the internal cwnd variable during FR/FR. Our cwnd tracking is event-driven 
rather than polled, so we 'see' sudden drops and rapid regrowth of FreeBSD's 
cwnd during the brief time period after a loss is detected.

cheers,
gja

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