TCP Friendliness

Experimental Setting

Bottleneck Bandwidth: 400Mbs
Queue size: 2000 Kbytes
Background traffic: YES
Long-Lived flows: forward direction (None!), backward direction (None!)
Short-Lived flows: None! (forward direction, backward direction)
flow1 and flow2 have the same RTT

1. TCP Fairness

1.1 Fairness index (Jain's) for TCP friendliness

Delay	CUBIC	BIC	HTCP	HSTCP	STCP	FAST	SACK
16ms	0.767870 [1] [2] [3] [4] [5]	0.568828 [1] [2] [3] [4] [5]	0.957945 [1] [2]	0.659496 [1] [2] [3] [4] [5]	0.547626 [1] [2] [3] [4] [5]	0.796498 [1] [2] [3] [4] [5]	0.994891 [1] [2] [3] [4] [5]
42ms	0.682513 [1] [2] [3] [4] [5]	0.550729 [1] [2] [3] [4] [5]	0.720628 [1] [2]	0.633367 [1] [2] [3] [4] [5]	0.529583 [1] [2] [3] [4] [5]	0.802718 [1] [2] [3] [4] [5]	0.997886 [1] [2] [3] [4] [5]
82ms	0.621706 [1] [2] [3] [4] [5]	0.550178 [1] [2] [3] [4] [5]	0.605771 [1] [2]	0.622108 [1] [2] [3] [4] [5]	0.526827 [1] [2] [3] [4] [5]	0.695742 [1] [2] [3] [4] [5]	0.991151 [1] [2] [3] [4] [5]
162ms	0.577551 [1] [2] [3] [4] [5]	0.552256 [1] [2] [3] [4] [5]	0.538849 [1]	0.575082 [1] [2] [3] [4] [5]	0.530855 [1] [2] [3] [4] [5]	0.731577 [1] [2] [3] [4] [5]	0.961582 [1] [2] [3] [4] [5]
324ms	0.577427 [1] [2] [3] [4] [5]	0.570483 [1] [2] [3] [4] [5]	0.539545 [1]	0.607285 [1] [2] [3] [4] [5]	0.541661 [1] [2] [3] [4] [5]	0.956823 [1] [2] [3] [4] [5]	0.957235 [1] [2] [3] [4] [5]

1.2 Throughput Ratio for TCP friendliness

Delay	CUBIC	BIC	HTCP	HSTCP	STCP	FAST	SACK
16ms	0.296351 [1] [2] [3] [4] [5]	0.069158 [1] [2] [3] [4] [5]	0.671959 [1] [2]	0.163841 [1] [2] [3] [4] [5]	0.047734 [1] [2] [3] [4] [5]	0.338196 [1] [2] [3] [4] [5]	0.869590 [1] [2] [3] [4] [5]
42ms	0.191530 [1] [2] [3] [4] [5]	0.050862 [1] [2] [3] [4] [5]	0.232590 [1] [2]	0.135845 [1] [2] [3] [4] [5]	0.029609 [1] [2] [3] [4] [5]	0.337128 [1] [2] [3] [4] [5]	0.932316 [1] [2] [3] [4] [5]
82ms	0.124578 [1] [2] [3] [4] [5]	0.050308 [1] [2] [3] [4] [5]	0.106991 [1] [2]	0.124076 [1] [2] [3] [4] [5]	0.026848 [1] [2] [3] [4] [5]	0.205971 [1] [2] [3] [4] [5]	0.877636 [1] [2] [3] [4] [5]
162ms	0.078212 [1] [2] [3] [4] [5]	0.052405 [1] [2] [3] [4] [5]	0.038908 [1]	0.075556 [1] [2] [3] [4] [5]	0.030928 [1] [2] [3] [4] [5]	0.281290 [1] [2] [3] [4] [5]	0.734939 [1] [2] [3] [4] [5]
324ms	0.077939 [1] [2] [3] [4] [5]	0.070904 [1] [2] [3] [4] [5]	0.039607 [1]	0.108576 [1] [2] [3] [4] [5]	0.041761 [1] [2] [3] [4] [5]	0.660969 [1] [2] [3] [4] [5]	0.686554 [1] [2] [3] [4] [5]

2. Link Utilization

Link utilization table

Delay	CUBIC	BIC	HTCP	HSTCP	STCP	FAST	SACK
16ms	0.954570 [1] [2] [3] [4] [5]	0.953125 [1] [2] [3] [4] [5]	0.954633 [1] [2]	0.953911 [1] [2] [3] [4] [5]	0.950761 [1] [2] [3] [4] [5]	0.954630 [1] [2] [3] [4] [5]	0.954637 [1] [2] [3] [4] [5]
42ms	0.954173 [1] [2] [3] [4] [5]	0.952333 [1] [2] [3] [4] [5]	0.940320 [1] [2]	0.950208 [1] [2] [3] [4] [5]	0.935242 [1] [2] [3] [4] [5]	0.954630 [1] [2] [3] [4] [5]	0.952463 [1] [2] [3] [4] [5]
82ms	0.946315 [1] [2] [3] [4] [5]	0.947325 [1] [2] [3] [4] [5]	0.933777 [1] [2]	0.940383 [1] [2] [3] [4] [5]	0.878975 [1] [2] [3] [4] [5]	0.952537 [1] [2] [3] [4] [5]	0.906634 [1] [2] [3] [4] [5]
162ms	0.854195 [1] [2] [3] [4] [5]	0.852732 [1] [2] [3] [4] [5]	0.919150 [1]	0.896771 [1] [2] [3] [4] [5]	0.670648 [1] [2] [3] [4] [5]	0.954450 [1] [2] [3] [4] [5]	0.842134 [1] [2] [3] [4] [5]
324ms	0.432249 [1] [2] [3] [4] [5]	0.529570 [1] [2] [3] [4] [5]	0.480098 [1]	0.651450 [1] [2] [3] [4] [5]	0.431534 [1] [2] [3] [4] [5]	0.592533 [1] [2] [3] [4] [5]	0.562545 [1] [2] [3] [4] [5]

3. Queue Dropping Ratio

Queue drop ratio on the bottleneck router

Delay	CUBIC	BIC	HTCP	HSTCP	STCP	FAST	SACK
16ms	0.000062 [1] [2] [3] [4] [5]	0.000274 [1] [2] [3] [4] [5]	0.000078 [1] [2]	0.000114 [1] [2] [3] [4] [5]	0.000574 [1] [2] [3] [4] [5]	0.000051 [1] [2] [3] [4] [5]	0.000070 [1] [2] [3] [4] [5]
42ms	0.000090 [1] [2] [3] [4] [5]	0.000202 [1] [2] [3] [4] [5]	0.000108 [1] [2]	0.000120 [1] [2] [3] [4] [5]	0.000594 [1] [2] [3] [4] [5]	0.000074 [1] [2] [3] [4] [5]	0.000085 [1] [2] [3] [4] [5]
82ms	0.000099 [1] [2] [3] [4] [5]	0.000129 [1] [2] [3] [4] [5]	0.000114 [1] [2]	0.000106 [1] [2] [3] [4] [5]	0.000557 [1] [2] [3] [4] [5]	0.000069 [1] [2] [3] [4] [5]	0.000088 [1] [2] [3] [4] [5]
162ms	0.000190 [1] [2] [3] [4] [5]	0.000238 [1] [2] [3] [4] [5]	0.000260 [1]	0.000181 [1] [2] [3] [4] [5]	0.001396 [1] [2] [3] [4] [5]	0.000054 [1] [2] [3] [4] [5]	0.000135 [1] [2] [3] [4] [5]
324ms	0.001431 [1] [2] [3] [4] [5]	0.000630 [1] [2] [3] [4] [5]	0.000786 [1]	0.000415 [1] [2] [3] [4] [5]	0.001774 [1] [2] [3] [4] [5]	0.000065 [1] [2] [3] [4] [5]	0.000190 [1] [2] [3] [4] [5]

4. Convergence Time

4.1 Convergence time for two flows

Delay	CUBIC	BIC	HTCP	HSTCP	STCP	FAST	SACK
16ms	654.800000 [1] [2] [3] [4] [5]	1068.000000 [1] [2] [3] [4] [5]	25.000000 [1] [2]	857.400000 [1] [2] [3] [4] [5]	1068.000000 [1] [2] [3] [4] [5]	548.200000 [1] [2] [3] [4] [5]	49.000000 [1] [2] [3] [4] [5]
42ms	869.400000 [1] [2] [3] [4] [5]	1068.000000 [1] [2] [3] [4] [5]	541.500000 [1] [2]	225.600000 [1] [2] [3] [4] [5]	1068.000000 [1] [2] [3] [4] [5]	1068.000000 [1] [2] [3] [4] [5]	105.000000 [1] [2] [3] [4] [5]
82ms	444.200000 [1] [2] [3] [4] [5]	225.600000 [1] [2] [3] [4] [5]	1068.000000 [1] [2]	658.800000 [1] [2] [3] [4] [5]	436.200000 [1] [2] [3] [4] [5]	485.600000 [1] [2] [3] [4] [5]	125.000000 [1] [2] [3] [4] [5]
162ms	442.200000 [1] [2] [3] [4] [5]	857.400000 [1] [2] [3] [4] [5]	1068.000000 [1]	1068.000000 [1] [2] [3] [4] [5]	722.600000 [1] [2] [3] [4] [5]	897.400000 [1] [2] [3] [4] [5]	571.600000 [1] [2] [3] [4] [5]
324ms	658.800000 [1] [2] [3] [4] [5]	660.800000 [1] [2] [3] [4] [5]	25.000000 [1]	857.400000 [1] [2] [3] [4] [5]	438.200000 [1] [2] [3] [4] [5]	1068.000000 [1] [2] [3] [4] [5]	859.400000 [1] [2] [3] [4] [5]

4.2 Fairness index over various time scales

RTT 82 msec with various time scales

Fairness index table

You can click the link of each delay ( 16ms 42ms 82ms 162ms 324ms ) as well as each measurement interval

Protocol		16ms	42ms	82ms	162ms	324ms
CUBIC	1sec	0.500000	0.500000	0.500000	0.500000	0.500000
	5sec	0.762885	0.675621	0.614885	0.578429	0.565649
	10sec	0.763173	0.675703	0.615182	0.576986	0.560257
	20sec	0.763750	0.675783	0.615144	0.576909	0.558110
	40sec	0.765377	0.677093	0.615905	0.578053	0.561908
	80sec	0.766491	0.679442	0.618871	0.580623	0.568228
	160sec	0.768808	0.682491	0.622363	0.583943	0.575346
BIC	1sec	0.500000	0.500000	0.500000	0.500000	0.500000
	5sec	0.569162	0.551149	0.550478	0.555904	0.575305
	10sec	0.569056	0.551107	0.550783	0.554650	0.572859
	20sec	0.568956	0.551017	0.551137	0.554923	0.573422
	40sec	0.568751	0.551019	0.551546	0.555071	0.575890
	80sec	0.568687	0.550934	0.551180	0.555187	0.583488
	160sec	0.568927	0.550919	0.551705	0.555448	0.588204
HTCP	1sec	0.500000	0.500000	0.500000	0.500000	0.500000
	5sec	0.937490	0.720381	0.605330	0.541845	0.562321
	10sec	0.939225	0.720331	0.605506	0.541792	0.547966
	20sec	0.942750	0.720206	0.605973	0.541286	0.544497
	40sec	0.949618	0.720368	0.607868	0.540237	0.542595
	80sec	0.956565	0.720503	0.608367	0.539643	0.540540
	160sec	0.959328	0.720954	0.608576	0.536884	0.539430
HSTCP	1sec	0.500000	0.500000	0.500000	0.500000	0.500000
	5sec	0.660021	0.633400	0.609533	0.577436	0.615354
	10sec	0.659923	0.633346	0.609437	0.577045	0.614041
	20sec	0.659954	0.633403	0.609580	0.576724	0.613256
	40sec	0.660134	0.634656	0.610877	0.577110	0.613326
	80sec	0.659975	0.634826	0.616761	0.576952	0.612944
	160sec	0.661201	0.635104	0.629510	0.577014	0.617217
STCP	1sec	0.500000	0.500000	0.500000	0.500000	0.500000
	5sec	0.547960	0.529910	0.529567	0.559458	0.571938
	10sec	0.547846	0.529836	0.528744	0.557051	0.564801
	20sec	0.547747	0.529734	0.528248	0.553686	0.562066
	40sec	0.547628	0.529614	0.527877	0.549191	0.556182
	80sec	0.547576	0.529569	0.527176	0.538028	0.553128
	160sec	0.547114	0.529714	0.527577	0.535323	0.545120
FAST	1sec	0.500000	0.500000	0.500000	0.500000	0.500000
	5sec	0.793890	0.799704	0.696767	0.725078	0.952720
	10sec	0.794367	0.799992	0.696875	0.725080	0.952844
	20sec	0.795492	0.800555	0.696843	0.725078	0.952931
	40sec	0.798914	0.803171	0.700066	0.728799	0.953017
	80sec	0.799620	0.804252	0.700058	0.728831	0.953091
	160sec	0.804606	0.805649	0.713672	0.743099	0.953267
SACK	1sec	0.500000	0.500000	0.500000	0.500000	0.500000
	5sec	0.962393	0.960144	0.960962	0.948242	0.954624
	10sec	0.963709	0.960677	0.961245	0.948308	0.954877
	20sec	0.966256	0.962197	0.961818	0.948381	0.954902
	40sec	0.972710	0.964166	0.962506	0.947852	0.954594
	80sec	0.980630	0.968787	0.965102	0.948448	0.954605
	160sec	0.983975	0.981675	0.969704	0.947155	0.953330

5. Coefficient of Variance (CoV) of Total throughput

CoV Graph for 10 sec measurement interval

CoV table

You can click the link of each delay ( 16ms 42ms 82ms 162ms 324ms ) as well as each measurement interval

Protocol		16ms	42ms	82ms	162ms	324ms
CUBIC	1sec	0.004601	0.012276	0.047381	0.213815	0.686095
	5sec	0.001632	0.005679	0.040084	0.185960	0.646763
	10sec	0.001048	0.004194	0.036174	0.162410	0.610532
	20sec	0.000654	0.002882	0.029726	0.135983	0.544262
	40sec	0.000434	0.001978	0.024068	0.104161	0.430013
	80sec	0.000292	0.001329	0.019065	0.081812	0.294301
	160sec	0.000182	0.001016	0.012494	0.052299	0.220025
BIC	1sec	0.017623	0.033240	0.051051	0.232227	0.542887
	5sec	0.008377	0.015142	0.038064	0.202067	0.530029
	10sec	0.005824	0.010954	0.027982	0.170882	0.513225
	20sec	0.004074	0.007521	0.022372	0.131544	0.486555
	40sec	0.002880	0.005318	0.016446	0.094491	0.439202
	80sec	0.002105	0.003750	0.012048	0.069848	0.304909
	160sec	0.001607	0.002990	0.008660	0.048779	0.152088
HTCP	1sec	0.005255	0.063298	0.057802	0.089191	0.624501
	5sec	0.002116	0.053821	0.048713	0.084943	0.563785
	10sec	0.001285	0.040679	0.039423	0.081236	0.466948
	20sec	0.000484	0.031720	0.031270	0.066887	0.363846
	40sec	0.000287	0.025071	0.021193	0.063450	0.278786
	80sec	0.000149	0.018561	0.014620	0.056878	0.192225
	160sec	0.000058	0.010850	0.010561	0.037848	0.121841
HSTCP	1sec	0.012909	0.030644	0.067882	0.143880	0.359381
	5sec	0.004750	0.020592	0.052720	0.118686	0.352020
	10sec	0.003327	0.013977	0.043412	0.101241	0.342355
	20sec	0.002228	0.009710	0.032746	0.082313	0.325963
	40sec	0.001531	0.006361	0.023834	0.058363	0.292856
	80sec	0.000993	0.004336	0.017354	0.041278	0.236523
	160sec	0.000730	0.002835	0.011856	0.030120	0.150502
STCP	1sec	0.029247	0.054849	0.153403	0.446799	0.684227
	5sec	0.012733	0.023885	0.121539	0.343559	0.633705
	10sec	0.009058	0.016466	0.098575	0.279856	0.580627
	20sec	0.006787	0.010577	0.081549	0.220023	0.484081
	40sec	0.005052	0.007446	0.057047	0.180203	0.339643
	80sec	0.003806	0.004281	0.032869	0.137528	0.215436
	160sec	0.002700	0.002939	0.022552	0.087636	0.168566
FAST	1sec	0.002471	0.002380	0.017662	0.001582	0.084991
	5sec	0.000985	0.000962	0.015628	0.000482	0.084686
	10sec	0.000654	0.000669	0.014847	0.000365	0.084292
	20sec	0.000417	0.000460	0.011708	0.000338	0.083558
	40sec	0.000228	0.000308	0.009347	0.000259	0.082398
	80sec	0.000077	0.000179	0.006972	0.000243	0.082065
	160sec	0.000047	0.000031	0.004612	0.000202	0.080751
SACK	1sec	0.003752	0.007710	0.075051	0.137872	0.137631
	5sec	0.001536	0.005577	0.074053	0.137477	0.137141
	10sec	0.000984	0.004226	0.073123	0.136600	0.136435
	20sec	0.000517	0.002856	0.071362	0.135394	0.135107
	40sec	0.000224	0.001861	0.068066	0.133075	0.132486
	80sec	0.000114	0.000958	0.054925	0.128774	0.132141
	160sec	0.000068	0.000654	0.033935	0.114787	0.130744