D22438.1789296405.diff
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	Index: head/sys/netinet/cc/cc_newreno.c
	===================================================================
	--- head/sys/netinet/cc/cc_newreno.c
	+++ head/sys/netinet/cc/cc_newreno.c
	@@ -213,8 +213,15 @@
	* wirespeed, overloading router and switch buffers along the way.
	*
	* See RFC5681 Section 4.1. "Restarting Idle Connections".
	+ *
	+ * In addition, per RFC2861 Section 2, the ssthresh is set to the
	+ * maximum of the former ssthresh or 3/4 of the old cwnd, to
	+ * not exit slow-start prematurely.
	*/
	rw = tcp_compute_initwnd(tcp_maxseg(ccv->ccvc.tcp));
	+
	+ CCV(ccv, snd_ssthresh) = max(CCV(ccv, snd_ssthresh),
	+ CCV(ccv, snd_cwnd)-(CCV(ccv, snd_cwnd)>>2));

	CCV(ccv, snd_cwnd) = min(rw, CCV(ccv, snd_cwnd));
	}