$ iperf3 -c 10.11.11.2 -p 5202 -t 20 -u -b 900M -J

STDOUT
{
	"start":	{
		"connected":	[{
				"socket":	5,
				"local_host":	"10.11.11.3",
				"local_port":	52901,
				"remote_host":	"10.11.11.2",
				"remote_port":	5202
			}],
		"version":	"iperf 3.16",
		"system_info":	"Linux ubuntu-HP-ProBook-440-G5 6.17.0-20-generic #20~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Mar 19 01:28:37 UTC 2 x86_64",
		"timestamp":	{
			"time":	"Fri, 08 May 2026 20:00:08 GMT",
			"timesecs":	1778270408
		},
		"connecting_to":	{
			"host":	"10.11.11.2",
			"port":	5202
		},
		"cookie":	"3y47qpubhvl5iwu2n3t6iqmwaz47ugwzqemd",
		"target_bitrate":	900000000,
		"fq_rate":	0,
		"sock_bufsize":	0,
		"sndbuf_actual":	212992,
		"rcvbuf_actual":	212992,
		"test_start":	{
			"protocol":	"UDP",
			"num_streams":	1,
			"blksize":	1448,
			"omit":	0,
			"duration":	20,
			"bytes":	0,
			"blocks":	0,
			"reverse":	0,
			"tos":	0,
			"target_bitrate":	900000000,
			"bidir":	0,
			"fqrate":	0
		}
	},
	"intervals":	[{
			"streams":	[{
					"socket":	5,
					"start":	0,
					"end":	1.000109,
					"seconds":	1.0001089572906494,
					"bytes":	112418376,
					"bits_per_second":	899249028.26226139,
					"packets":	77637,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	0,
				"end":	1.000109,
				"seconds":	1.0001089572906494,
				"bytes":	112418376,
				"bits_per_second":	899249028.26226139,
				"packets":	77637,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	1.000109,
					"end":	2.000065,
					"seconds":	0.99995601177215576,
					"bytes":	112496568,
					"bits_per_second":	900012133.93881023,
					"packets":	77691,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	1.000109,
				"end":	2.000065,
				"seconds":	0.99995601177215576,
				"bytes":	112496568,
				"bits_per_second":	900012133.93881023,
				"packets":	77691,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	2.000065,
					"end":	3.000064,
					"seconds":	0.99999898672103882,
					"bytes":	112496568,
					"bits_per_second":	899973455.92416847,
					"packets":	77691,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	2.000065,
				"end":	3.000064,
				"seconds":	0.99999898672103882,
				"bytes":	112496568,
				"bits_per_second":	899973455.92416847,
				"packets":	77691,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	3.000064,
					"end":	4.000066,
					"seconds":	1.0000020265579224,
					"bytes":	112508152,
					"bits_per_second":	900063391.96940243,
					"packets":	77699,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	3.000064,
				"end":	4.000066,
				"seconds":	1.0000020265579224,
				"bytes":	112508152,
				"bits_per_second":	900063391.96940243,
				"packets":	77699,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	4.000066,
					"end":	5.000103,
					"seconds":	1.0000369548797607,
					"bytes":	112498016,
					"bits_per_second":	899950870.423793,
					"packets":	77692,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	4.000066,
				"end":	5.000103,
				"seconds":	1.0000369548797607,
				"bytes":	112498016,
				"bits_per_second":	899950870.423793,
				"packets":	77692,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	5.000103,
					"end":	6.000096,
					"seconds":	0.99999302625656128,
					"bytes":	112500912,
					"bits_per_second":	900013572.46374571,
					"packets":	77694,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	5.000103,
				"end":	6.000096,
				"seconds":	0.99999302625656128,
				"bytes":	112500912,
				"bits_per_second":	900013572.46374571,
				"packets":	77694,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	6.000096,
					"end":	7.000097,
					"seconds":	1.0000009536743164,
					"bytes":	112500912,
					"bits_per_second":	900006437.686976,
					"packets":	77694,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	6.000096,
				"end":	7.000097,
				"seconds":	1.0000009536743164,
				"bytes":	112500912,
				"bits_per_second":	900006437.686976,
				"packets":	77694,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	7.000097,
					"end":	8.000097,
					"seconds":	1,
					"bytes":	112496568,
					"bits_per_second":	899972544,
					"packets":	77691,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	7.000097,
				"end":	8.000097,
				"seconds":	1,
				"bytes":	112496568,
				"bits_per_second":	899972544,
				"packets":	77691,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	8.000097,
					"end":	9.000108,
					"seconds":	1.0000109672546387,
					"bytes":	112500912,
					"bits_per_second":	899997425.49906039,
					"packets":	77694,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	8.000097,
				"end":	9.000108,
				"seconds":	1.0000109672546387,
				"bytes":	112500912,
				"bits_per_second":	899997425.49906039,
				"packets":	77694,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	9.000108,
					"end":	10.000115,
					"seconds":	1.0000070333480835,
					"bytes":	112498016,
					"bits_per_second":	899977798.14287829,
					"packets":	77692,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	9.000108,
				"end":	10.000115,
				"seconds":	1.0000070333480835,
				"bytes":	112498016,
				"bits_per_second":	899977798.14287829,
				"packets":	77692,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	10.000115,
					"end":	11.00011,
					"seconds":	0.999994993209839,
					"bytes":	112503808,
					"bits_per_second":	900034970.286234,
					"packets":	77696,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	10.000115,
				"end":	11.00011,
				"seconds":	0.999994993209839,
				"bytes":	112503808,
				"bits_per_second":	900034970.286234,
				"packets":	77696,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	11.00011,
					"end":	12.000107,
					"seconds":	0.99999701976776123,
					"bytes":	112492224,
					"bits_per_second":	899940474.03161371,
					"packets":	77688,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	11.00011,
				"end":	12.000107,
				"seconds":	0.99999701976776123,
				"bytes":	112492224,
				"bits_per_second":	899940474.03161371,
				"packets":	77688,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	12.000107,
					"end":	13.000096,
					"seconds":	0.99998897314071655,
					"bytes":	112505256,
					"bits_per_second":	900051972.74645126,
					"packets":	77697,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	12.000107,
				"end":	13.000096,
				"seconds":	0.99998897314071655,
				"bytes":	112505256,
				"bits_per_second":	900051972.74645126,
				"packets":	77697,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	13.000096,
					"end":	14.000098,
					"seconds":	1.0000020265579224,
					"bytes":	112500912,
					"bits_per_second":	900005472.08678043,
					"packets":	77694,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	13.000096,
				"end":	14.000098,
				"seconds":	1.0000020265579224,
				"bytes":	112500912,
				"bits_per_second":	900005472.08678043,
				"packets":	77694,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	14.000098,
					"end":	15.000064,
					"seconds":	0.999966025352478,
					"bytes":	112492224,
					"bits_per_second":	899968368.10808742,
					"packets":	77688,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	14.000098,
				"end":	15.000064,
				"seconds":	0.999966025352478,
				"bytes":	112492224,
				"bits_per_second":	899968368.10808742,
				"packets":	77688,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	15.000064,
					"end":	16.000156,
					"seconds":	1.0000920295715332,
					"bytes":	42197616,
					"bits_per_second":	337549863.43069738,
					"packets":	29143,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	15.000064,
				"end":	16.000156,
				"seconds":	1.0000920295715332,
				"bytes":	42197616,
				"bits_per_second":	337549863.43069738,
				"packets":	29143,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	16.000156,
					"end":	17.000307,
					"seconds":	1.0001510381698608,
					"bytes":	0,
					"bits_per_second":	0,
					"packets":	0,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	16.000156,
				"end":	17.000307,
				"seconds":	1.0001510381698608,
				"bytes":	0,
				"bits_per_second":	0,
				"packets":	0,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	17.000307,
					"end":	18.000166,
					"seconds":	0.99985897541046143,
					"bytes":	0,
					"bits_per_second":	0,
					"packets":	0,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	17.000307,
				"end":	18.000166,
				"seconds":	0.99985897541046143,
				"bytes":	0,
				"bits_per_second":	0,
				"packets":	0,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	18.000166,
					"end":	19.000322,
					"seconds":	1.000156044960022,
					"bytes":	0,
					"bits_per_second":	0,
					"packets":	0,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	18.000166,
				"end":	19.000322,
				"seconds":	1.000156044960022,
				"bytes":	0,
				"bits_per_second":	0,
				"packets":	0,
				"omitted":	false,
				"sender":	true
			}
		}, {
			"streams":	[{
					"socket":	5,
					"start":	19.000322,
					"end":	20.00131,
					"seconds":	1.0009880065917969,
					"bytes":	0,
					"bits_per_second":	0,
					"packets":	0,
					"omitted":	false,
					"sender":	true
				}],
			"sum":	{
				"start":	19.000322,
				"end":	20.00131,
				"seconds":	1.0009880065917969,
				"bytes":	0,
				"bits_per_second":	0,
				"packets":	0,
				"omitted":	false,
				"sender":	true
			}
		}],
	"end":	{
		"streams":	[{
				"udp":	{
					"socket":	5,
					"start":	0,
					"end":	20.00131,
					"seconds":	20.00131,
					"bytes":	1729607040,
					"bits_per_second":	691797503.26353621,
					"jitter_ms":	329.1133542566476,
					"lost_packets":	66,
					"packets":	1194481,
					"lost_percent":	0.00552541229203311,
					"out_of_order":	0,
					"sender":	true
				}
			}],
		"sum":	{
			"start":	0,
			"end":	20.99144,
			"seconds":	20.99144,
			"bytes":	1729607040,
			"bits_per_second":	691797503.26353621,
			"jitter_ms":	329.1133542566476,
			"lost_packets":	66,
			"packets":	1194481,
			"lost_percent":	0.00552541229203311,
			"sender":	true
		},
		"sum_sent":	{
			"start":	0,
			"end":	20.00131,
			"seconds":	20.00131,
			"bytes":	1729607040,
			"bits_per_second":	691797503.26353621,
			"jitter_ms":	0,
			"lost_packets":	0,
			"packets":	1194481,
			"lost_percent":	0,
			"sender":	true
		},
		"sum_received":	{
			"start":	0,
			"end":	20.99144,
			"seconds":	20.99144,
			"bytes":	1729392736,
			"bits_per_second":	659084935.95484638,
			"jitter_ms":	329.1133542566476,
			"lost_packets":	66,
			"packets":	1194398,
			"lost_percent":	0.00552541229203311,
			"sender":	false
		},
		"cpu_utilization_percent":	{
			"host_total":	78.105969105984855,
			"host_user":	67.3819807486567,
			"host_system":	10.724018346179808,
			"remote_total":	51.070003621947215,
			"remote_user":	14.661640434822315,
			"remote_system":	36.408372714804024
		}
	}
}

STDERR
