Juste pour revenir sur le problème de débit UL 'bbr' vs 'cubic', j'aimerai aussi ajouter une petite constatation que j'ai fais aujourd'hui.
En faisant tourner un test DL en même temps qu'un test UL pendant quelques minutes, j'ai remarqué que soit l'UL, soit le DL est FORTEMENT impacté par le test, du genre de 550Mbps à 40Mbps pour l'UL, ou 880Mbps à 200Mbps en DL. C'est soit l'un, soit l'autre qui est impacté.
Sachant qu'en unitaire j'ai le max, je suis prèt à parier que ce n'est pas un problème de congestion du réseau chez Free, mais uniquement un problème local entre l'ONT et l'OLT. Je sens un problème de sous dimensionnement d'un buffer (ONT ou OLT) qui sature s'il y a UL et DL en parallèle (avec une priorité pour le DL). Module de chiffrement de l'ONT/OLT qui a un buffer trop petit ? Algorithme limitant le débit UL qui est mal fichu ? Mystère !
Ce serait limite marrant de poster vos résultats d'iperf avec UL/DL en même temps (2 iperf3).
Edit: mes 2 sessions en // à 1 seconde d'intervalle
[ 5] 1.00-2.00 sec 8.75 MBytes 73.4 Mbits/sec 2587 139 KBytes [ 5] 2.00-3.00 sec 76.9 MBytes 645 Mbits/sec
[ 5] 2.00-3.00 sec 6.25 MBytes 52.4 Mbits/sec 915 107 KBytes [ 5] 3.00-4.00 sec 89.4 MBytes 750 Mbits/sec
[ 5] 3.00-4.00 sec 6.25 MBytes 52.4 Mbits/sec 766 130 KBytes [ 5] 4.00-5.00 sec 87.8 MBytes 736 Mbits/sec
[ 5] 4.00-5.00 sec 15.0 MBytes 126 Mbits/sec 2141 814 KBytes [ 5] 5.00-6.00 sec 85.3 MBytes 716 Mbits/sec
[ 5] 5.00-6.00 sec 33.8 MBytes 283 Mbits/sec 6902 554 KBytes [ 5] 6.00-7.00 sec 52.6 MBytes 442 Mbits/sec
[ 5] 6.00-7.00 sec 16.2 MBytes 136 Mbits/sec 4572 167 KBytes [ 5] 7.00-8.00 sec 69.5 MBytes 583 Mbits/sec
[ 5] 7.00-8.00 sec 6.25 MBytes 52.4 Mbits/sec 1090 96.2 KBytes [ 5] 8.00-9.00 sec 88.3 MBytes 741 Mbits/sec
[ 5] 8.00-9.00 sec 5.00 MBytes 41.9 Mbits/sec 403 84.8 KBytes [ 5] 9.00-10.00 sec 99.9 MBytes 838 Mbits/sec
[ 5] 9.00-10.00 sec 6.25 MBytes 52.4 Mbits/sec 938 127 KBytes [ 5] 10.00-11.00 sec 97.7 MBytes 820 Mbits/sec
[ 5] 10.00-11.00 sec 6.25 MBytes 52.4 Mbits/sec 574 113 KBytes [ 5] 11.00-12.00 sec 90.7 MBytes 761 Mbits/sec
[ 5] 11.00-12.00 sec 6.25 MBytes 52.4 Mbits/sec 842 130 KBytes [ 5] 12.00-13.00 sec 88.4 MBytes 741 Mbits/sec
[ 5] 12.00-13.00 sec 6.25 MBytes 52.4 Mbits/sec 513 116 KBytes [ 5] 13.00-14.00 sec 90.3 MBytes 758 Mbits/sec
[ 5] 13.00-14.00 sec 5.00 MBytes 41.9 Mbits/sec 725 127 KBytes [ 5] 14.00-15.00 sec 95.7 MBytes 803 Mbits/sec
[ 5] 14.00-15.00 sec 5.00 MBytes 41.9 Mbits/sec 431 52.3 KBytes [ 5] 15.00-16.00 sec 100 MBytes 842 Mbits/sec
[ 5] 15.00-16.00 sec 31.2 MBytes 262 Mbits/sec 4807 622 KBytes [ 5] 16.00-17.00 sec 65.2 MBytes 547 Mbits/sec
[ 5] 16.00-17.00 sec 20.0 MBytes 168 Mbits/sec 6518 419 KBytes [ 5] 17.00-18.00 sec 67.9 MBytes 570 Mbits/sec
[ 5] 17.00-18.00 sec 12.5 MBytes 105 Mbits/sec 4304 243 KBytes [ 5] 18.00-19.00 sec 73.3 MBytes 615 Mbits/sec
[ 5] 18.00-19.00 sec 8.75 MBytes 73.4 Mbits/sec 2654 133 KBytes [ 5] 19.00-20.00 sec 83.4 MBytes 700 Mbits/sec
[ 5] 19.00-20.00 sec 5.00 MBytes 41.9 Mbits/sec 862 93.3 KBytes [ 5] 20.00-21.00 sec 94.0 MBytes 789 Mbits/sec
[ 5] 20.00-21.00 sec 5.00 MBytes 41.9 Mbits/sec 353 84.8 KBytes [ 5] 21.00-22.00 sec 102 MBytes 855 Mbits/sec
[ 5] 21.00-22.00 sec 5.00 MBytes 41.9 Mbits/sec 269 84.8 KBytes [ 5] 22.00-23.00 sec 103 MBytes 866 Mbits/sec
[ 5] 22.00-23.00 sec 5.00 MBytes 41.9 Mbits/sec 384 90.5 KBytes [ 5] 23.00-24.00 sec 102 MBytes 854 Mbits/sec
[ 5] 23.00-24.00 sec 5.00 MBytes 41.9 Mbits/sec 381 67.9 KBytes [ 5] 24.00-25.00 sec 101 MBytes 847 Mbits/sec
[ 5] 24.00-25.00 sec 13.8 MBytes 115 Mbits/sec 2535 591 KBytes [ 5] 25.00-26.00 sec 85.2 MBytes 715 Mbits/sec
[ 5] 25.00-26.00 sec 46.2 MBytes 388 Mbits/sec 4599 1.22 MBytes [ 5] 26.00-27.00 sec 38.1 MBytes 320 Mbits/sec
[ 5] 26.00-27.00 sec 46.2 MBytes 388 Mbits/sec 6075 772 KBytes [ 5] 27.00-28.00 sec 42.0 MBytes 352 Mbits/sec
[ 5] 27.00-28.00 sec 25.0 MBytes 210 Mbits/sec 6616 430 KBytes [ 5] 28.00-29.00 sec 66.2 MBytes 555 Mbits/sec
[ 5] 28.00-29.00 sec 13.8 MBytes 115 Mbits/sec 3786 161 KBytes [ 5] 29.00-30.00 sec 74.4 MBytes 624 Mbits/sec
[ 5] 29.00-30.00 sec 6.25 MBytes 52.4 Mbits/sec 1279 83.4 KBytes [ 5] 30.00-31.00 sec 87.1 MBytes 731 Mbits/sec
[ 5] 30.00-31.00 sec 5.00 MBytes 41.9 Mbits/sec 384 82.0 KBytes [ 5] 31.00-32.00 sec 85.9 MBytes 720 Mbits/sec
[ 5] 31.00-32.00 sec 5.00 MBytes 41.9 Mbits/sec 384 82.0 KBytes [ 5] 32.00-33.00 sec 99.2 MBytes 832 Mbits/sec
[ 5] 32.00-33.00 sec 5.00 MBytes 41.9 Mbits/sec 454 105 KBytes [ 5] 33.00-34.00 sec 101 MBytes 850 Mbits/sec
[ 5] 33.00-34.00 sec 5.00 MBytes 41.9 Mbits/sec 683 102 KBytes [ 5] 34.00-35.00 sec 99.6 MBytes 836 Mbits/sec
[ 5] 34.00-35.00 sec 5.00 MBytes 41.9 Mbits/sec 406 87.7 KBytes [ 5] 35.00-36.00 sec 102 MBytes 852 Mbits/sec
[ 5] 35.00-36.00 sec 5.00 MBytes 41.9 Mbits/sec 393 113 KBytes [ 5] 36.00-37.00 sec 103 MBytes 867 Mbits/sec
[ 5] 36.00-37.00 sec 5.00 MBytes 41.9 Mbits/sec 572 82.0 KBytes [ 5] 37.00-38.00 sec 101 MBytes 843 Mbits/sec
[ 5] 37.00-38.00 sec 5.00 MBytes 41.9 Mbits/sec 486 127 KBytes [ 5] 38.00-39.00 sec 100 MBytes 843 Mbits/sec
[ 5] 38.00-39.00 sec 5.00 MBytes 41.9 Mbits/sec 569 105 KBytes [ 5] 39.00-40.00 sec 102 MBytes 857 Mbits/sec
[ 5] 39.00-40.00 sec 3.75 MBytes 31.5 Mbits/sec 436 116 KBytes [ 5] 40.00-41.00 sec 103 MBytes 865 Mbits/sec
[ 5] 40.00-41.00 sec 6.25 MBytes 52.4 Mbits/sec 677 107 KBytes [ 5] 41.00-42.00 sec 94.9 MBytes 796 Mbits/sec
[ 5] 41.00-42.00 sec 6.25 MBytes 52.4 Mbits/sec 716 72.1 KBytes [ 5] 42.00-43.00 sec 90.2 MBytes 757 Mbits/sec
[ 5] 42.00-43.00 sec 5.00 MBytes 41.9 Mbits/sec 401 84.8 KBytes [ 5] 43.00-44.00 sec 95.3 MBytes 799 Mbits/sec
[ 5] 43.00-44.00 sec 5.00 MBytes 41.9 Mbits/sec 338 90.5 KBytes [ 5] 44.00-45.00 sec 101 MBytes 843 Mbits/sec
[ 5] 44.00-45.00 sec 5.00 MBytes 41.9 Mbits/sec 451 87.7 KBytes [ 5] 45.00-46.00 sec 101 MBytes 844 Mbits/sec
[ 5] 45.00-46.00 sec 5.00 MBytes 41.9 Mbits/sec 455 94.7 KBytes [ 5] 46.00-47.00 sec 103 MBytes 865 Mbits/sec
[ 5] 46.00-47.00 sec 5.00 MBytes 41.9 Mbits/sec 511 87.7 KBytes [ 5] 47.00-48.00 sec 102 MBytes 860 Mbits/sec
[ 5] 47.00-48.00 sec 3.75 MBytes 31.5 Mbits/sec 379 53.7 KBytes [ 5] 48.00-49.00 sec 102 MBytes 859 Mbits/sec
[ 5] 48.00-49.00 sec 5.00 MBytes 41.9 Mbits/sec 404 84.8 KBytes [ 5] 49.00-50.00 sec 103 MBytes 864 Mbits/sec
[ 5] 49.00-50.00 sec 6.25 MBytes 52.4 Mbits/sec 495 105 KBytes [ 5] 50.00-51.00 sec 101 MBytes 850 Mbits/sec
[ 5] 50.00-51.00 sec 5.00 MBytes 41.9 Mbits/sec 814 76.4 KBytes [ 5] 51.00-52.00 sec 97.1 MBytes 814 Mbits/sec
[ 5] 51.00-52.00 sec 6.25 MBytes 52.4 Mbits/sec 709 110 KBytes [ 5] 52.00-53.00 sec 91.8 MBytes 770 Mbits/sec
[ 5] 52.00-53.00 sec 5.00 MBytes 41.9 Mbits/sec 554 105 KBytes [ 5] 53.00-54.00 sec 92.7 MBytes 778 Mbits/sec
[ 5] 53.00-54.00 sec 5.00 MBytes 41.9 Mbits/sec 508 96.2 KBytes [ 5] 54.00-55.00 sec 103 MBytes 861 Mbits/sec
[ 5] 54.00-55.00 sec 23.8 MBytes 199 Mbits/sec 2460 851 KBytes [ 5] 55.00-56.00 sec 79.9 MBytes 670 Mbits/sec
[ 5] 55.00-56.00 sec 27.5 MBytes 231 Mbits/sec 5982 611 KBytes [ 5] 56.00-57.00 sec 64.8 MBytes 543 Mbits/sec
[ 5] 56.00-57.00 sec 27.5 MBytes 231 Mbits/sec 2207 288 KBytes [ 5] 57.00-58.00 sec 58.3 MBytes 489 Mbits/sec
[ 5] 57.00-58.00 sec 8.75 MBytes 73.4 Mbits/sec 2887 161 KBytes [ 5] 58.00-59.00 sec 74.1 MBytes 621 Mbits/sec
[ 5] 58.00-59.00 sec 6.25 MBytes 52.4 Mbits/sec 989 56.6 KBytes [ 5] 59.00-60.00 sec 94.3 MBytes 791 Mbits/sec
[ 5] 59.00-60.00 sec 5.00 MBytes 41.9 Mbits/sec 525 110 KBytes [ 5] 60.00-61.00 sec 93.2 MBytes 782 Mbits/sec
[ 5] 60.00-61.00 sec 6.25 MBytes 52.4 Mbits/sec 473 122 KBytes [ 5] 61.00-62.00 sec 89.4 MBytes 750 Mbits/sec
[ 5] 61.00-62.00 sec 5.00 MBytes 41.9 Mbits/sec 404 107 KBytes [ 5] 62.00-63.00 sec 81.0 MBytes 679 Mbits/sec
[ 5] 62.00-63.00 sec 5.00 MBytes 41.9 Mbits/sec 409 79.2 KBytes [ 5] 63.00-64.00 sec 103 MBytes 864 Mbits/sec
[ 5] 63.00-64.00 sec 5.00 MBytes 41.9 Mbits/sec 327 90.5 KBytes [ 5] 64.00-65.00 sec 102 MBytes 858 Mbits/sec
[ 5] 64.00-65.00 sec 5.00 MBytes 41.9 Mbits/sec 706 115 KBytes [ 5] 65.00-66.00 sec 98.5 MBytes 827 Mbits/sec
[ 5] 65.00-66.00 sec 7.50 MBytes 62.9 Mbits/sec 723 73.5 KBytes [ 5] 66.00-67.00 sec 91.5 MBytes 767 Mbits/sec
[ 5] 66.00-67.00 sec 18.8 MBytes 157 Mbits/sec 4212 419 KBytes [ 5] 67.00-68.00 sec 63.0 MBytes 529 Mbits/sec
[ 5] 67.00-68.00 sec 8.75 MBytes 73.4 Mbits/sec 2958 170 KBytes [ 5] 68.00-69.00 sec 75.0 MBytes 629 Mbits/sec
[ 5] 68.00-69.00 sec 6.25 MBytes 52.4 Mbits/sec 898 113 KBytes [ 5] 69.00-70.00 sec 95.6 MBytes 802 Mbits/sec
[ 5] 69.00-70.00 sec 5.00 MBytes 41.9 Mbits/sec 399 87.7 KBytes [ 5] 70.00-71.00 sec 103 MBytes 861 Mbits/sec
[ 5] 70.00-71.00 sec 6.25 MBytes 52.4 Mbits/sec 483 140 KBytes [ 5] 71.00-72.00 sec 81.9 MBytes 687 Mbits/sec
[ 5] 71.00-72.00 sec 6.25 MBytes 52.4 Mbits/sec 1056 150 KBytes [ 5] 72.00-73.00 sec 86.8 MBytes 728 Mbits/sec
[ 5] 72.00-73.00 sec 6.25 MBytes 52.4 Mbits/sec 894 65.0 KBytes [ 5] 73.00-74.00 sec 92.3 MBytes 775 Mbits/sec
[ 5] 73.00-74.00 sec 5.00 MBytes 41.9 Mbits/sec 438 122 KBytes [ 5] 74.00-75.00 sec 96.0 MBytes 805 Mbits/sec
[ 5] 74.00-75.00 sec 7.50 MBytes 62.9 Mbits/sec 1032 147 KBytes [ 5] 75.00-76.00 sec 90.2 MBytes 757 Mbits/sec
[ 5] 75.00-76.00 sec 6.25 MBytes 52.4 Mbits/sec 922 77.8 KBytes [ 5] 76.00-77.00 sec 89.4 MBytes 750 Mbits/sec
[ 5] 76.00-77.00 sec 25.0 MBytes 210 Mbits/sec 3254 670 KBytes [ 5] 77.00-78.00 sec 69.6 MBytes 584 Mbits/sec
[ 5] 77.00-78.00 sec 38.8 MBytes 325 Mbits/sec 2821 512 KBytes [ 5] 78.00-79.00 sec 57.2 MBytes 480 Mbits/sec
[ 5] 78.00-79.00 sec 18.8 MBytes 157 Mbits/sec 6661 294 KBytes [ 5] 79.00-80.00 sec 66.7 MBytes 560 Mbits/sec
[ 5] 79.00-80.00 sec 15.0 MBytes 126 Mbits/sec 4870 273 KBytes [ 5] 80.00-81.00 sec 75.1 MBytes 630 Mbits/sec
[ 5] 80.00-81.00 sec 12.5 MBytes 105 Mbits/sec 3524 243 KBytes [ 5] 81.00-82.00 sec 74.4 MBytes 624 Mbits/sec
[ 5] 81.00-82.00 sec 11.2 MBytes 94.4 Mbits/sec 3249 167 KBytes [ 5] 82.00-83.00 sec 64.1 MBytes 538 Mbits/sec
[ 5] 82.00-83.00 sec 6.25 MBytes 52.4 Mbits/sec 1053 102 KBytes [ 5] 83.00-84.00 sec 90.7 MBytes 761 Mbits/sec
[ 5] 83.00-84.00 sec 5.00 MBytes 41.9 Mbits/sec 341 63.6 KBytes [ 5] 84.00-85.00 sec 103 MBytes 867 Mbits/sec
[ 5] 84.00-85.00 sec 13.8 MBytes 115 Mbits/sec 625 1.12 MBytes [ 5] 85.00-86.00 sec 95.4 MBytes 800 Mbits/sec