Latency Survey Results

Survey results in response to my request in It's the Latency, Stupid

You should realize that this is not an unbiased survey. There is strong self-selection going on here. These results are the best of the best. People don't send me their results unless they rank somewhere at the top of the list, so if your modem is doing a lot worse than the figures shown here, don't feel too disheartened. In fact, if your modem is doing a lot worse than the figures shown here, why not send me your results, to help even up the balance.

The results are listed in order of latency, from best to worst. Surprisingly the results I've got so far fall quite clearly into four disjoint groups, with no overlap:

The reason I asked people to use traceroute instead of ping, is so we can see not only the total round-trip time, but also exactly where the time is going, hop-by-hop. It's interesting to see that in almost every case, the time it takes a packet to travel across the Internet backbone from one side of the country to the other (15-30 hops) is a total of about 50ms each way -- less than the time it takes for a packet to go a single hop over a modem.


Cable Modems and ADSL all get 5-8ms best-case. Name: Jay Rolls Modem: BellSouth cable modem ISP: BellSouth Date: March 1997 Best round-trip to Internet: 5ms 1 bims008001.bims.bellsouth.net. (205.152.8.1): 8 ms 5 ms 6 ms 2 172.16.11.2 (172.16.11.2): 4 ms 6 ms 8 ms 3 172.16.4.2 (172.16.4.2): 9 ms 6 ms 6 ms 4 bims011033.bims.bellsouth.net. (205.152.11.33): 5 ms 5 ms 5 ms 5 205.152.13.98 (205.152.13.98): 7 ms 5 ms 6 ms 6 * * * 7 core-tr01-ap1003.wash.grid.net. (206.80.168.9): 28 ms 24 ms 25 ms 8 core-tr04-ap201.snfc.grid.net. (206.80.180.5): 82 ms 92 ms 84 ms 9 pb.mci.net. (198.32.128.12): 90 ms 213 ms 114 ms 10 core3-hssi3-0.sanfrancisco.mci.net. (204.70.1.201): 90 ms * 96 ms 11 bbn-planet.sanfrancisco.mci.net. (166.48.15.254): 102 ms 90 ms 97 ms 12 bbn-planet.sanfrancisco.mci.net. (166.48.15.254): 93 ms 92 ms 90 ms 13 su-pr1.bbnplanet.net. (131.119.0.199): 100 ms 93 ms 94 ms 14 sunet-gateway.stanford.edu. (198.31.10.1): 92 ms 102 ms 15 core-gateway.stanford.edu. (171.64.1.33): 95 ms 91 ms 93 ms 16 jenkins-gateway.stanford.edu. (171.64.1.167): 99 ms 95 ms 97 ms 17 rescomp.stanford.edu. (171.64.187.14): 89 ms 89 ms 91 ms Name: Douglas Siebert Modem: Pairgain Megabit Modem 768P (SDSL - 768K each way) OS: Linux 2.0 ISP: MCI Date: November 1997 Best round-trip to Internet: 5.9ms 1 XXX 1.428 1.266 1.319 2 * * * 3 XXX 5.873 5.898 6.477 4 XXX 9.128 7.645 8.022 5 XXX 87.806 94.933 145.105 6 core1-fddi-0.KansasCity.mci.net (204.70.2.65) * 59.212 68.574 7 core1-hssi-2.WillowSprings.mci.net (204.70.1.242) 61.591 85.019 79.153 8 core5.WillowSprings.mci.net (204.70.4.97) 86.792 98.697 98.606 9 wsp-bbn-nap.WillowSprings.mci.net (206.157.77.202) 81.93 119.741 * 10 chicago1-br2.bbnplanet.net (4.0.2.254) 121.654 113.154 110.079 11 boston1-br1.bbnplanet.net (4.0.3.1) 76.136 89.293 80.836 12 boston1-br2.bbnplanet.net (4.0.2.250) 108.769 95.399 166.601 13 cambridge2-br1.bbnplanet.net (4.0.1.186) 149.575 176.289 174.371 14 ihtfp.mit.edu (192.233.33.3) * 179.277 181.55 15 B24-RTR-FDDI.MIT.EDU (18.168.0.14) 190.394 158.295 89.854 16 radole.lcs.mit.edu (18.10.0.1) 79.475 183.864 144.567 17 lcs-5-floor.lcs.mit.edu (18.24.11.1) 148.82 156.467 209.664 18 mintaka.lcs.mit.edu (18.26.0.36) 97.939 85.627 79.069 Name: Spencer Fern Modem: Cox Communications cable modem ISP: @home Network Date: April 1997 Best round-trip to Internet: 6ms 1 9 ms 8 ms 11 ms cr1-hfc3.msnv1.occa.home.net [24.1.131.1] 2 6 ms 6 ms 7 ms bb1-fe0-0-100bt.rdc1.occa.home.net [24.1.128.1] 3 64 ms 62 ms 62 ms 172.16.0.41 4 201 ms 257 ms 238 ms maeeast-1.bbnplanet.net [192.41.177.1] 5 63 ms 63 ms 62 ms maeeast-2.bbnplanet.net [4.1.15.2] 6 109 ms 262 ms 257 ms 4.0.1.93 7 63 ms 75 ms 63 ms 4.0.1.89 8 65 ms 64 ms 64 ms washdc1-br2.bbnplanet.net [4.0.1.174] 9 229 ms 72 ms 70 ms nyc1-br1.bbnplanet.net [4.0.2.34] 10 76 ms 328 ms 392 ms nyc1-br2.bbnplanet.net [4.0.1.178] 11 79 ms 76 ms 77 ms cambridge1-br1.bbnplanet.net [4.0.1.122] 12 76 ms 76 ms 96 ms cambridge1-br2.bbnplanet.net [199.94.205.102] 13 117 ms 90 ms 290 ms cambridge2-br2.bbnplanet.net [4.0.1.202] 14 79 ms 75 ms 77 ms ihtfp.mit.edu [192.233.33.3] 15 78 ms 77 ms 77 ms B24-RTR-FDDI.MIT.EDU [18.168.0.6] 16 78 ms 79 ms 78 ms radole.lcs.mit.edu [18.10.0.1] 17 78 ms 80 ms 86 ms lcs-5-floor.lcs.mit.edu [18.10.0.4] 18 78 ms 80 ms 79 ms lcs.mit.edu [18.26.0.36] Name: Palo Alto Cable Co-op Modem: COM21 CableCoax-Ethernet bridge ISP: MediaCity Date: March 1997 Best round-trip to Internet: 8ms 1 206.24.110.65 8ms 10ms 8ms 2 206.24.105.8 mv103.mediacity.com. 13ms 11ms 31ms 3 206.24.105.55 grf01hs0.mediacity.com. 11ms 19ms 15ms 4 166.48.15.249 bordercore2-hssi0-0.sanfrancisco.mci.net. * 28ms 24ms 5 204.70.2.2 border1-fddi-0.washington.mci.net. 235ms 107ms * 6 100ms 98ms 96ms 7 204.70.56.6 suranet-wtn-ds3.washington.mci.net. 104ms * 94ms 8 4.0.1.229 washdc1-br1.bbnplanet.net. 103ms 101ms * 9 4.0.1.174 washdc1-br2.bbnplanet.net. * 307ms 580ms 10 4.0.1.114 nyc1-br1.bbnplanet.net. * 107ms 113ms 11 4.0.1.178 nyc1-br2.bbnplanet.net. 129ms * 112ms 12 4.0.2.22 cambridge1-br1.bbnplanet.net. 112ms 126ms 109ms 13 199.94.205.102 cambridge1-br2.bbnplanet.net. 120ms 101ms 112ms 14 4.0.1.202 cambridge2-br2.bbnplanet.net. * * 111ms 15 192.233.33.3 ihtfp.mit.edu. 99ms 113ms 120ms 16 18.168.0.6 b24-rtr-fddi.mit.edu. * 116ms 114ms 17 18.10.0.1 radole.lcs.mit.edu. 118ms 109ms * 18 18.10.0.4 lcs-5-floor.lcs.mit.edu. 112ms 114ms 112ms 19 18.26.0.36 mintaka.lcs.mit.edu. 104ms 108ms 117ms Name: Douglas Kubler Modem: LanCity LCPET-2 GTE Cable Modem OS: Windows 95 ISP: GTE Date: November 1997 Best round-trip to Internet: 8ms 1 2 ms 2 ms 2 ms calnet15-254.gtecablemodem.com=20 2 8 ms 9 ms 13 ms cable3-129.gte.net [24.96.32.129] 3 13 ms 14 ms 12 ms 563.Hssi4-0.GW1.LAX1.ALTER.NET [157.130.224.101] 4 14 ms 21 ms 18 ms 311.atm6-0.gw1.lax1.alter.net [137.39.21.197] 5 33 ms 36 ms 30 ms 111.Hssi11-0.CR1.PAO1.Alter.Net [137.39.71.133] 6 25 ms 58 ms 25 ms 411.atm10-0-0.br1.pao1.alter.net [137.39.13.141] 7 28 ms 26 ms 27 ms paix.bbnplanet.net [137.39.250.246] 8 25 ms 27 ms 30 ms su-bfr.bbnplanet.net [4.0.1.49] 9 24 ms 26 ms 26 ms paloalto-br1.bbnplanet.net [4.0.2.194] 10 88 ms 87 ms 84 ms chicago1-br1.bbnplanet.net [4.0.2.170] 11 97 ms 97 ms 97 ms chicago1-br2.bbnplanet.net [4.0.2.254] 12 99 ms 93 ms 94 ms boston1-br1.bbnplanet.net [4.0.1.126] 13 98 ms 92 ms 99 ms boston1-br2.bbnplanet.net [4.0.2.250] 14 98 ms 94 ms 97 ms cambridge2-br1.bbnplanet.net [4.0.1.186] 15 100 ms 99 ms 95 ms ihtfp.mit.edu [192.233.33.3] 16 103 ms 100 ms 100 ms B24-RTR-FDDI.MIT.EDU [18.168.0.14] 17 98 ms 92 ms 93 ms radole.lcs.mit.edu [18.10.0.1] 18 99 ms 95 ms 125 ms lcs-5-floor.lcs.mit.edu [18.24.11.1] 19 108 ms 95 ms 97 ms lcs.mit.edu [18.26.0.36] Name: Douglas Siebert Modem: Westell ADSL modem OS: Linux 2.0 ISP: MCI Date: November 1997 Best round-trip to Internet: 8.4ms 1 XXX 8.705 8.786 8.405 2 XXX 24.291 12.532 9.048 3 XXX 173.524 103.448 252.502 4 core1-fddi-0.KansasCity.mci.net (204.70.2.65) 101.395 126.685 110.246 5 core1-hssi-2.WillowSprings.mci.net (204.70.1.242) 114.096 59.915 64.538 6 core5.WillowSprings.mci.net (204.70.4.97) 57.515 68.053 137.731 7 wsp-bbn-nap.WillowSprings.mci.net (206.157.77.202) 150.656 110.876 139.631 8 chicago1-br2.bbnplanet.net (4.0.2.254) 101.419 127.077 92.4 9 boston1-br1.bbnplanet.net (4.0.3.5) 128.228 162.725 156.685 10 boston1-br2.bbnplanet.net (4.0.2.250) 116.379 158.206 152.702 11 cambridge2-br1.bbnplanet.net (4.0.1.186) 141.182 109.109 113.439 12 ihtfp.mit.edu (192.233.33.3) 210.302 164.789 152.93 13 B24-RTR-FDDI.MIT.EDU (18.168.0.14) 143.93 116.069 119.006 14 radole.lcs.mit.edu (18.10.0.1) 123.023 161.834 125.201 15 lcs-5-floor.lcs.mit.edu (18.24.11.1) 127.25 165.841 147.606 16 mintaka.lcs.mit.edu (18.26.0.36) 136.454 124.134 157.073
ISDN-Ethernet bridges all get 21-34ms. Name: Anna Patterson Modem: Cisco 750 series ISDN-Ethernet bridge OS: Macintosh IIci running MacTCP ISP: Stanford Date: March 1997 Best round-trip to Internet: 21ms 1 36.178.0.1 ncs-gateway.stanford.edu. 23ms 21ms 21ms 2 171.64.1.1 core-gateway.stanford.edu. 24ms 21ms 22ms 3 171.64.1.34 sunet-gateway.stanford.edu. 24ms 22ms 25ms 4 198.31.10.3 su-pr1.bbnplanet.net. 28ms 23ms 21ms 5 131.119.0.193 paloalto-br1.bbnplanet.net. 25ms 23ms 22ms 6 4.0.1.2 chicago2-br1.bbnplanet.net. 76ms 74ms 75ms 7 199.92.131.11 chicago1-br1.bbnplanet.net. 76ms 79ms 75ms 8 4.0.1.194 chicago1-br2.bbnplanet.net. 78ms 74ms 73ms 9 4.0.1.126 boston1-br1.bbnplanet.net. 95ms 93ms 92ms 10 4.0.1.182 boston1-br2.bbnplanet.net. 93ms 93ms 99ms 11 4.0.1.186 cambridge2-br1.bbnplanet.net. 95ms 94ms 93ms 12 192.233.33.3 ihtfp.mit.edu. 98ms 95ms 93ms 13 18.168.0.6 b24-rtr-fddi.mit.edu. 95ms 94ms 95ms 14 18.10.0.1 radole.lcs.mit.edu. 96ms 93ms 95ms 15 18.10.0.4 lcs-5-floor.lcs.mit.edu. 98ms 96ms 95ms 16 18.26.0.36 mintaka.lcs.mit.edu. 97ms 95ms 95ms Name: Barry Brown Modem: ADC Kentrox Pacesetter Pro, single B channel, to a PortMaster 2e Pacific Bell ISDN line OS: Macintosh Quadra 650 running System 7.5.5, Open Transport ISP: Sacramento Network Access Date: October 1997 Best round-trip to Internet: 28ms 1 3/3 0.002 0.002 0.002 204.86.246.1 bbgw.sna.com 2 3/3 0.028 0.028 0.028 204.119.128.12 sac-isdn00.sna.com 3 3/3 0.029 0.029 0.030 204.119.128.1 sna-7507.sna.com 4 3/3 0.034 0.046 0.052 144.228.146.29 sl-stk-16-s2/0-6m.sprintlink.net 5 3/3 0.037 0.053 0.062 144.228.40.20 6 3/3 0.034 0.034 0.035 144.232.4.21 7 3/3 0.036 0.037 0.038 144.232.8.82 8 3/3 0.038 0.053 0.083 4.0.1.65 paloalto-br1.bbnplanet.net 9 3/3 0.079 0.079 0.080 4.0.2.174 chicago1-br2.bbnplanet.net 10 3/3 0.099 0.105 0.118 4.0.3.1 boston1-br1.bbnplanet.net 11 3/3 0.100 0.218 0.283 4.0.2.250 boston1-br2.bbnplanet.net 12 3/3 0.100 0.101 0.102 4.0.1.186 cambridge2-br1.bbnplanet.net 13 3/3 0.100 0.100 0.101 192.233.33.3 ihtfp.mit.edu 14 3/3 0.099 0.110 0.131 18.168.0.14 b24-rtr-fddi.mit.edu 15 3/3 0.102 0.105 0.111 18.10.0.1 radole.lcs.mit.edu 16 3/3 0.122 0.208 0.356 18.24.11.1 lcs-5-floor.lcs.mit.edu 17 3/3 0.115 0.124 0.129 18.26.0.36 mintaka.lcs.mit.edu Name: Dan Knight Modem: Ascend Pipeline P50-LS56 ISDN-Ethernet bridge OS: Power Mac 7600/132, OT 1.1.2 ISP: Iserv Best round-trip to Internet: 28ms 1 206.67.165.1 (206.67.165.1): 2 ms 2 ms 2 ms 2 iserv-max-1.iserv.net. (204.177.184.12): 57 ms 29 ms 28 ms 3 iserv-gw1.iserv.net. (204.177.184.1): 32 ms 30 ms 34 ms 4 527.hssi5-0.gw3.chi1.alter.net. (137.39.130.77): 96 ms 93 ms 87 ms 5 423.atm1-0.cr2.chi1.alter.net. (137.39.13.98): 107 ms 102 ms 84 ms 6 106.hssi12-0.cr2.pao1.alter.net. (137.39.71.173): 148 ms 126 ms 131 ms 7 312.atm2-0.br1.pao1.alter.net. (137.39.13.145): 349 ms 199 ms 298 ms 8 decwrl.bbnplanet.net. (198.32.176.5): 158 ms 165 ms 139 ms 9 paloalto-br1.bbnplanet.net. (4.0.1.57): * * 112 ms 10 oakland-br1.bbnplanet.net. (4.0.1.62): 102 ms 104 ms 133 ms 11 denver-br1.bbnplanet.net. (4.0.1.134): 132 ms 133 ms 131 ms 12 denver-br2.bbnplanet.net. (4.0.1.190): 106 ms 107 ms 112 ms 13 chicago1-br2.bbnplanet.net. (4.0.1.130): 115 ms 104 ms 101 ms 14 boston1-br1.bbnplanet.net. (4.0.1.126): 141 ms 127 ms 119 ms 15 boston1-br2.bbnplanet.net. (4.0.1.182): 136 ms 129 ms 126 ms 16 cambridge2-br1.bbnplanet.net. (4.0.1.186): 125 ms 132 ms 152 ms 17 ihtfp.mit.edu. (192.233.33.3): 125 ms 136 ms 146 ms 18 b24-rtr-fddi.mit.edu. (18.168.0.14): * 187 ms 236 ms 19 radole.lcs.mit.edu. (18.10.0.1): 160 ms 136 ms 157 ms 20 lcs-5-floor.lcs.mit.edu. (18.10.0.4): 141 ms 155 ms 171 ms 21 mintaka.lcs.mit.edu. (18.26.0.36): 192 ms 180 ms 184 ms Name: Neil Crellin Modem: Cisco 760 series ISDN-Ethernet bridge OS: PowerMac running Open Transport ISP: Stanford Date: March 1997 Best round-trip to Internet: 29ms 1 3/3 0.031 0.034 0.038 36.178.0.1 ncs-gateway.stanford.edu 2 3/3 0.029 0.042 0.066 171.64.1.1 core-gateway.stanford.edu 3 3/3 0.031 0.043 0.067 171.64.1.34 sunet-gateway.stanford.edu 4 3/3 0.031 0.207 0.555 198.31.10.3 su-pr1.bbnplanet.net 5 3/3 0.031 0.044 0.069 131.119.0.193 paloalto-br1.bbnplanet.net 6 3/3 0.082 0.086 0.094 4.0.1.2 chicago2-br1.bbnplanet.net 7 3/3 0.083 0.105 0.143 199.92.131.11 chicago1-br1.bbnplanet.net 8 3/3 0.082 0.082 0.083 4.0.1.194 chicago1-br2.bbnplanet.net 9 3/3 0.100 0.104 0.111 4.0.1.126 boston1-br1.bbnplanet.net 10 3/3 0.101 0.155 0.263 4.0.1.182 boston1-br2.bbnplanet.net 11 3/3 0.102 0.103 0.107 4.0.1.186 cambridge2-br1.bbnplanet.net 12 3/3 0.102 0.114 0.133 192.233.33.3 ihtfp.mit.edu 13 3/3 0.102 0.105 0.110 18.168.0.6 b24-rtr-fddi.mit.edu 14 3/3 0.103 0.106 0.110 18.10.0.1 radole.lcs.mit.edu 15 2/3 0.103 0.104 0.105 18.10.0.4 lcs-5-floor.lcs.mit.edu 16 3/3 0.103 0.104 0.105 18.26.0.36 mintaka.lcs.mit.edu Name: Barry Brown Modem: ADC Kentrox Pacesetter Pro, single B channel, to a Gandalf ExpressWay, Pacific Bell ISDN line OS: Macintosh Quadra 650 running System 7.5.5, Open Transport ISP: Sacramento Network Access Date: September 1997 Best round-trip to Internet: 31ms 1 3/3 0.002 0.002 0.002 206.40.12.25 isdn12-025.sna.com 2 3/3 0.031 0.037 0.049 204.119.128.1 sna-7507.sna.com 3 3/3 0.038 0.042 0.052 144.228.146.29 sl-stk-16-s2/0-6m.sprintlink.net 4 3/3 0.037 0.045 0.061 144.228.40.20 5 3/3 0.069 0.074 0.083 144.232.8.69 6 3/3 0.070 0.096 0.147 144.232.1.129 sl-fw-1-p8/0/0-155m.sprintlink.net 7 3/3 0.070 0.070 0.071 144.228.180.2 8 3/3 0.087 0.088 0.090 4.0.1.106 atlanta1-br1.bbnplanet.net 9 3/3 0.089 0.090 0.092 4.0.1.170 atlanta1-br2.bbnplanet.net 10 3/3 0.102 0.104 0.109 4.0.2.225 washdc1-br1.bbnplanet.net 11 3/3 0.104 0.112 0.127 4.0.2.126 washdc1-br2.bbnplanet.net 12 3/3 0.107 0.109 0.111 4.0.2.34 nyc1-br1.bbnplanet.net 13 3/3 0.106 0.107 0.109 4.0.2.122 nyc1-br2.bbnplanet.net 14 3/3 0.113 0.116 0.122 4.0.1.122 cambridge1-br1.bbnplanet.net 15 3/3 0.116 0.116 0.116 199.94.205.102 cambridge1-br2.bbnplanet.net 16 3/3 0.108 0.109 0.111 4.0.2.26 cambridge2-br2.bbnplanet.net 17 3/3 0.105 0.106 0.108 192.233.33.3 ihtfp.mit.edu 18 3/3 0.107 0.107 0.108 18.168.0.14 b24-rtr-fddi.mit.edu 19 3/3 0.107 0.109 0.114 18.10.0.1 radole.lcs.mit.edu 20 3/3 0.110 0.119 0.136 18.24.11.1 lcs-5-floor.lcs.mit.edu 21 3/3 0.111 0.117 0.122 18.26.0.36 mintaka.lcs.mit.edu Name: John Springer Modem: Ascend Pipeline 25 ISDN-Ethernet bridge ISP: Internex Date: May 1997 Best round-trip to Internet: 34ms 1 0.005 0.005 0.007 207.88.101.49 router.digitalmx.com 2 0.034 0.047 0.067 205.158.3.20 santaclara01-max1.pop.internex.net 3 0.035 0.059 0.071 205.158.3.17 santaclara01-rtr-e0.pop.internex.net 4 0.035 0.078 0.101 205.158.0.6 r1a1c-rtr-f0-0.rtr.internex.net 5 0.036 0.065 0.124 205.158.0.7 r1a1d-rtr-f0-0.rtr.internex.net 6 0.067 0.120 0.224 198.32.184.19 sanjose1-br1.bbnplanet.net 7 0.111 0.115 0.123 4.0.2.29 washdc1-br2.bbnplanet.net 8 0.184 0.270 0.322 4.0.2.34 nyc1-br1.bbnplanet.net 9 0.121 0.123 0.126 4.0.2.122 nyc1-br2.bbnplanet.net 10 0.124 0.210 0.370 4.0.2.22 cambridge1-br1.bbnplanet.net 11 0.125 0.127 0.132 199.94.205.102 cambridge1-br2.bbnplanet.net 12 0.124 0.127 0.131 4.0.1.202 cambridge2-br2.bbnplanet.net 13 0.125 0.129 0.134 192.233.33.3 ihtfp.mit.edu 14 0.125 0.157 0.174 18.168.0.6 b24-rtr-fddi.mit.edu 15 0.125 0.138 0.153 18.10.0.1 radole.lcs.mit.edu 16 0.128 0.308 0.425 18.10.0.4 lcs-5-floor.lcs.mit.edu 17 0.133 0.134 0.136 18.26.0.36 mintaka.lcs.mit.edu
Telephone modems get 110ms and up. Name: Barry Brown Modem: USRobotics Sportster Mac&Fax 33.6 Notes: Serial port at 115.2kbps, compression and error correction both turned off ISP: Sacramento Network Access Date: March 1997 Best round-trip to Internet: 110ms 1 0.113 0.157 0.233 204.119.140.162 sacto00.sna.com 2 0.110 0.143 0.200 204.119.128.211 x9kc.sna.com 3 0.117 0.146 0.198 204.119.128.1 sna-7507.sna.com 4 0.122 0.150 0.198 144.228.146.29 sl-stk-16-s2/0-3000k.sprintlink.net 5 0.125 0.171 0.265 144.228.40.22 6 0.122 0.183 0.220 144.232.1.6 7 0.126 0.218 0.379 144.228.10.46 sl-mae-w-h1/0-t3.sprintlink.net 8 0.129 0.310 0.668 198.32.136.19 sanjose1-br1.bbnplanet.net 9 0.134 0.167 0.222 4.0.1.73 oakland-br2.bbnplanet.net 10 0.131 0.156 0.200 4.0.1.77 oakland-br1.bbnplanet.net 11 0.164 0.179 0.194 4.0.1.134 denver-br1.bbnplanet.net 12 0.165 0.177 0.194 4.0.1.190 denver-br2.bbnplanet.net 13 0.189 0.195 0.203 4.0.1.130 chicago1-br1.bbnplanet.net 14 0.190 0.197 0.213 4.0.1.194 chicago1-br2.bbnplanet.net 15 0.194 0.206 0.222 4.0.1.126 boston1-br1.bbnplanet.net 16 0.194 0.198 0.205 4.0.1.182 boston1-br2.bbnplanet.net 17 0.196 0.202 0.213 4.0.1.186 cambridge2-br1.bbnplanet.net 18 0.199 0.204 0.215 192.233.33.3 ihtfp.mit.edu 19 0.200 0.206 0.212 18.168.0.6 b24-rtr-fddi.mit.edu 20 0.195 0.205 0.220 18.10.0.1 radole.lcs.mit.edu 21 0.197 0.214 0.248 18.10.0.4 lcs-5-floor.lcs.mit.edu 22 0.194 0.216 0.250 18.26.0.36 mintaka.lcs.mit.edu Name: Jon Graehl Modem: Zoltrix 28.8 ISP: USC dialup PPP service Date: April 1997 Best round-trip to Internet: 124ms 1 128 ms 124 ms 125 ms comserv-g.usc.edu [128.125.150.17] 2 241 ms 128 ms 126 ms dialup-gw.usc.edu [128.125.150.254] 3 126 ms 130 ms 124 ms rtr18.usc.edu [128.125.253.18] 4 129 ms 130 ms 148 ms cit-usc.ln.net [130.152.88.2] 5 131 ms 126 ms 131 ms jpl-cit.ln.net [130.152.152.2] 6 134 ms 135 ms 128 ms acg-jpl.ln.net [130.152.120.2] 7 154 ms 390 ms 136 ms isi-acg.ln.net [130.152.136.1] 8 137 ms 135 ms * f1.border1.lax1.genuity.net [198.32.146.18] 9 135 ms 132 ms 135 ms f6.core1.lax1.genuity.net [207.240.1.17] 10 144 ms 146 ms 146 ms core1.sjc1.genuity.net [207.240.0.9] 11 149 ms 146 ms 145 ms f4.peer1.sjc1.genuity.net [207.240.1.46] 12 184 ms 765 ms 630 ms sanjose1-br1.bbnplanet.net [198.32.184.19] 13 147 ms 148 ms 145 ms oakland-br2.bbnplanet.net [4.0.1.73] 14 148 ms 155 ms 149 ms oakland-br1.bbnplanet.net [4.0.1.77] 15 327 ms 180 ms 176 ms denver-br1.bbnplanet.net [4.0.1.134] 16 184 ms 391 ms 177 ms denver-br2.bbnplanet.net [4.0.1.190] 17 217 ms 211 ms 212 ms chicago1-br1.bbnplanet.net [4.0.1.130] 18 236 ms 223 ms 232 ms boston1-br1.bbnplanet.net [4.0.1.126] 19 325 ms 301 ms 227 ms boston1-br2.bbnplanet.net [4.0.1.182] 20 214 ms 213 ms 207 ms cambridge2-br1.bbnplanet.net [4.0.1.186] 21 225 ms 211 ms 213 ms ihtfp.mit.edu [192.233.33.3] 22 226 ms 215 ms 220 ms B24-RTR-FDDI.MIT.EDU [18.168.0.6] 23 214 ms 215 ms 215 ms radole.lcs.mit.edu [18.10.0.1] 24 252 ms 216 ms 232 ms lcs-5-floor.lcs.mit.edu [18.10.0.4] 25 221 ms 222 ms 235 ms lcs.mit.edu [18.26.0.36] Name: Jason Campbell Modem: Zoom Internal 28.8 ISP: Best Internet Date: February 1997 Best round-trip to Internet: 125ms 1 * * * Request timed out. 2 141 ms 131 ms 131 ms core-ether12-5.mv.best.net 206.86.127.1 3 130 ms 127 ms 130 ms 905.Hssi3-0.GW1.SCL1.ALTER.NET 137.39.133.89 4 127 ms 125 ms 129 ms 321.atm1-0.cr2.scl1.alter.net 137.39.13.166 5 210 ms 208 ms 209 ms 107.Hssi4-0.CR2.BOS1.Alter.Net 137.39.58.134 6 206 ms 201 ms 205 ms Hssi3-0.Boston6.MA.Alter.Net 137.39.101.165 7 297 ms 260 ms 237 ms Fddi1-0.Boston3.MA.Alter.Net 137.39.99.1 8 291 ms 205 ms 206 ms Hssi0-0.Cambridge.MA.Alter.Net 137.39.100.98 9 202 ms 414 ms 205 ms ihtfp.mit.edu 192.233.33.3 10 210 ms 210 ms 200 ms W20-RTR-FDDI.MIT.EDU 18.168.0.8 11 210 ms 226 ms 208 ms ANXIETY-CLOSET.MIT.EDU 18.181.0.21 Name: Peter Hardman Modem: TDK DF2814 PC card modem, 26400bps connection via ARA 2.0 ISP: Manchester University Chemistry department Date: February 1997 Best round-trip to Internet: 129ms 1 3/3 0.141 0.160 0.173 130.88.12.60 silver.ch.man.ac.uk 2 3/3 0.134 0.153 0.179 130.88.12.250 3 2/3 0.137 0.140 0.143 130.88.250.250 gw-owens.mcc.ac.uk 4 3/3 0.129 0.141 0.158 194.66.23.1 gw-mcc.g-ming.net.uk 5 2/3 0.145 0.174 0.203 192.84.80.250 gw-owens.mcc.ac.uk 6 3/3 0.167 0.175 0.185 193.63.203.33 smds-gw.ulcc.ja.net 7 3/3 0.143 0.168 0.212 128.86.1.80 gw5.ulcc.ja.net 8 2/3 0.150 0.161 0.173 193.63.175.53 icm-london-1.icp.net 9 3/3 0.145 0.156 0.177 198.67.131.193 10 3/3 0.207 0.221 0.231 198.67.131.25 icm-pen-1-h2/0-t3.icp.net 11 3/3 0.224 0.231 0.237 198.67.142.69 icm-pen-10-p4/0-oc3c.icp.net 12 3/3 0.248 0.257 0.273 192.157.69.51 bbnplanet1.sprintnap.net 13 3/3 0.259 0.440 0.757 4.0.1.25 nyc2-br2.bbnplanet.net 14 3/3 0.254 0.272 0.284 4.0.1.54 nyc2-br1.bbnplanet.net 15 3/3 0.250 0.262 0.277 4.0.1.21 collegepk-br2.bbnplanet.net 16 2/3 0.223 0.235 0.248 128.167.253.1 collegepk-cr3.bbnplanet.net 17 3/3 0.266 0.287 0.323 192.221.77.130 netsol.bbnplanet.net 18 3/3 0.258 0.289 0.310 198.41.0.4 a.root-servers.net Name: Peter Hardman Modem: TDK DF2814 PC card modem, 28800bps connection via PPP ISP: Manchester University's dialup service Date: February 1997 Best round-trip to Internet: 132ms 1 3/3 0.136 0.139 0.142 194.66.22.251 annex1.mcc.ac.uk 2 3/3 0.148 0.184 0.256 194.66.22.250 gw-mcc6.mcc.ac.uk 3 3/3 0.132 0.156 0.189 130.88.250.250 gw-owens.mcc.ac.uk 4 3/3 0.143 0.150 0.157 194.66.23.1 gw-mcc.g-ming.net.uk 5 3/3 0.133 0.139 0.144 192.84.80.250 gw-owens.mcc.ac.uk 6 3/3 0.147 0.210 0.334 193.63.203.33 smds-gw.ulcc.ja.net 7 3/3 0.162 0.172 0.190 128.86.1.80 gw5.ulcc.ja.net 8 3/3 0.162 0.196 0.261 193.63.175.53 icm-london-1.icp.net 9 3/3 0.151 0.167 0.186 198.67.131.193 10 3/3 0.242 0.250 0.260 198.67.131.25 icm-pen-1-h2/0-t3.icp.net 11 3/3 0.240 0.252 0.271 198.67.142.69 icm-pen-10-p4/0-oc3c.icp.net 12 3/3 0.261 0.272 0.284 192.157.69.51 bbnplanet1.sprintnap.net 13 3/3 0.266 0.398 0.525 4.0.1.25 nyc2-br2.bbnplanet.net 14 3/3 0.267 0.286 0.297 4.0.1.54 nyc2-br1.bbnplanet.net 15 3/3 0.248 0.259 0.271 4.0.1.21 collegepk-br2.bbnplanet.net 16 3/3 0.253 0.260 0.274 128.167.253.1 collegepk-cr3.bbnplanet.net 17 3/3 0.241 0.288 0.353 192.221.77.130 netsol.bbnplanet.net 18 3/3 0.283 0.397 0.595 198.41.0.4 a.root-servers.net Name: Jason Campbell Modem: Intel 14.4 Internal OS: Windows 95 ISP: Best Internet Date: February 1997 Best round-trip to Internet: 132ms 1 * * * Request timed out. 2 137 ms 140 ms 132 ms 206.184.171.65 3 146 ms 141 ms 143 ms 206.86.228.117 4 141 ms 155 ms 141 ms 137.39.133.89 5 146 ms 137 ms 143 ms 137.39.13.166 6 219 ms 217 ms 223 ms 137.39.58.134 7 379 ms 219 ms 427 ms 137.39.101.165 8 423 ms 345 ms 303 ms 137.39.99.1 9 220 ms 231 ms 220 ms 137.39.100.98 10 235 ms 227 ms 217 ms 192.233.33.3 11 235 ms 228 ms 241 ms 18.168.0.6 12 213 ms 222 ms 219 ms 18.10.0.1 13 220 ms 227 ms 223 ms 18.10.0.4 14 223 ms 215 ms 220 ms 18.26.0.36 Name: Jason Campbell Modem: Cardinal 28.8 External/Win95 ISP: Best Internet Date: February 1997 Best round-trip to Internet: 133ms 1 * * * Request timed out. 2 138 ms 133 ms 133 ms core1-ether0-1.san-jose.best.net 3 136 ms 136 ms 136 ms core-hssi9-0.mv.best.net 4 139 ms 340 ms 140 ms 905.Hssi3-0.GW1.SCL1.ALTER.NET 5 139 ms 140 ms 136 ms 321.atm1-0.cr2.scl1.alter.net 6 386 ms 251 ms 291 ms 107.Hssi4-0.CR2.BOS1.Alter.Net 7 217 ms 216 ms 220 ms Hssi3-0.Boston6.MA.Alter.Net 8 235 ms 230 ms 251 ms Fddi1-0.Boston3.MA.Alter.Net 9 218 ms 229 ms 231 ms Hssi0-0.Cambridge.MA.Alter.Net 10 222 ms 217 ms 216 ms ihtfp.mit.edu 11 225 ms 223 ms 214 ms B24-RTR-FDDI.MIT.EDU 12 223 ms 217 ms 219 ms radole.lcs.mit.edu 13 225 ms 213 ms 219 ms lcs-5-floor.lcs.mit.edu 14 223 ms 238 ms 235 ms lcs.mit.edu Name: Burton Murray Modem: USR Sportster Internal 33.6 Fax ISP: Pacbell Date: February 1997 Best round-trip to Internet: 133ms 1 206.171.128.51 max2.wnck11.pbi.net 143 ms 2 206.171.128.49 pop1-e10.wnck11.pbi.net 133 ms 3 206.171.128.233 policy1-s92.snfc21.pbi.net 177 ms 4 206.13.4.6 snfc21-agis0.pbi.net 359 ms 5 206.13.4.7 snfc21-nap1.pbi.net 145 ms 6 198.32.128.19 pb-nap.agis.net 167 ms 7 206.62.13.250 a1-0.1000.santaclara1.agis.net 305 ms 8 198.32.136.14 sanjose1-br2.bbnplanet.net 814 ms 9 4.0.1.81 sanjose1-br1.bbnplanet.net 693 ms 10 4.0.1.73 oakland-br2.bbnplanet.net 481 ms 11 4.0.1.77 oakland-br1.bbnplanet.net 381 ms 12 4.0.1.134 denver-br1.bbnplanet.net 257 ms 13 4.0.1.190 denver-br2.bbnplanet.net 237 ms 14 4.0.1.130 chicago1-br1.bbnplanet.net 294 ms 15 4.0.1.194 chicago1-br2.bbnplanet.net 245 ms 16 4.0.1.126 boston1-br1.bbnplanet.net 587 ms 17 4.0.1.182 boston1-br2.bbnplanet.net 283 ms 18 4.0.1.186 cambridge2-br1.bbnplanet.net 380 ms 19 192.233.33.3 ihtfp.mit.edu 433 ms 20 18.168.0.6 B24-RTR-FDDI.MIT.EDU 362 ms 21 18.10.0.1 radole.lcs.mit.edu 245 ms 22 18.10.0.4 lcs-5-floor.lcs.mit.edu 244 ms 23 18.26.0.36 lcs.mit.edu 228 ms Name: Alex Fern┬Ěndez Modem: SupraExpress 33.6 ISP: arrakis.es (located in Seville, Spain) Date: June 1997 Best round-trip to Internet: 134ms 1 172.16.1.2 (172.16.1.2 ): 156ms 134ms 146ms 2 172.16.100.12 (172.16.100.12 ): 196ms 220ms 139ms 3 * * * 4 172.16.192.78 (172.16.192.78 ): 179ms 233ms 153ms 5 194.179.27.129 (194.179.27.129 ): 189ms 168ms 244ms 6 194.179.3.130 (194.179.3.130 ): 244ms 197ms 165ms 7 serial2-1.new-york1.ny.alter.net (137.39.245.233 ): 645ms * 544ms 8 fddi0-0.new-york3.ny.alter.net. (137.39.126.8 ): 551ms 1001ms 526ms 9 hssi1-0.cr2.nyc1.alter.net. (137.39.100.6 ): 546ms 536ms 550ms 10 104.hssi5-0.cr2.dca1.alter.net. (137.39.58.21 ): 598ms 575ms 517ms 11 hssi5-0.br2.tco1.alter.net. (137.39.100.21 ): 543ms 587ms * 12 c128.bbnplanet.net. (137.39.250.14 ): 477ms 736ms 679ms 13 washdc1-br1.bbnplanet.net. (4.0.2.125 ): 800ms * * 14 vienna1-br1.bbnplanet.net. (4.0.1.90 ): 546ms 489ms * 15 paloalto-br1.bbnplanet.net. (4.0.2.61 ): * 563ms 597ms 16 su-pr1.bbnplanet.net. (131.119.0.199 ): 532ms * 890ms 17 sunet-gateway.stanford.edu. (198.31.10.1 ): 612ms 630ms 594ms 18 core-gateway.stanford.edu. (171.64.1.33 ): * 608ms 583ms 19 jenkins-gateway.stanford.edu. (171.64.1.167 ): 578ms 582ms 616ms 20 rescomp.stanford.edu. (171.64.187.14 ): 640ms 563ms 666ms Name: Patrick Sanger Modem: Megahertz XJ-CC 4288 (PCMCIA card), connected at 28.8kbps OS: Windows NT 4.0 ISP: Pine Crest School (main provider: BBN Planet) Date: July 1997 Best round-trip to Internet: 141ms 1 160 ms 141 ms 150 ms 204.199.172.1 2 150 ms 170 ms 161 ms miami-cr1.bbnplanet.net [192.221.12.21] 3 191 ms 150 ms 150 ms miami-cr3.bbnplanet.net [192.221.31.241] 4 170 ms 170 ms 190 ms atlanta1-mr2.bbnplanet.net [4.0.33.57] 5 170 ms 180 ms 170 ms atlanta1-br1.bbnplanet.net [4.0.32.1] 6 171 ms 170 ms 180 ms atlanta1-br2.bbnplanet.net [4.0.1.170] 7 470 ms 321 ms 320 ms washdc1-br1.bbnplanet.net [4.0.2.101] 8 180 ms 200 ms 180 ms washdc1-br2.bbnplanet.net [4.0.2.126] 9 190 ms 201 ms 200 ms nyc1-br1.bbnplanet.net [4.0.2.34] 10 220 ms 190 ms 210 ms nyc1-br2.bbnplanet.net [4.0.2.122] 11 210 ms 201 ms 210 ms cambridge1-br1.bbnplanet.net [4.0.1.122] 12 201 ms 200 ms 200 ms cambridge1-br2.bbnplanet.net [199.94.205.102] 13 200 ms 201 ms 210 ms cambridge2-br2.bbnplanet.net [4.0.1.202] 14 201 ms 210 ms 210 ms ihtfp.mit.edu [192.233.33.3] 15 280 ms 211 ms 210 ms B24-RTR-FDDI.MIT.EDU [18.168.0.14] 16 201 ms 210 ms 200 ms radole.lcs.mit.edu [18.10.0.1] 17 250 ms 231 ms 210 ms lcs-5-floor.lcs.mit.edu [18.10.0.4] 18 270 ms 230 ms 231 ms mintaka.lcs.mit.edu [18.26.0.36] Name: Kevin Crays Modem: USR Sporster 33.6k Voice Modem (external) ISP: Prodigy Internet Date: March 1997 Best round-trip to Internet: 149ms 1 164 ms 149 ms 149 ms 204.146.249.174 2 234 ms 216 ms 226 ms 165.87.134.86 3 411 ms 346 ms 184 ms dallas6-br2.tx.us.ibm.net [165.87.6.2] 4 313 ms 263 ms 242 ms chi36-0-br1.il.us.ibm.net [165.87.36.1] 5 312 ms 344 ms 208 ms chi36-32-br2.il.us.ibm.net [165.87.36.34] 6 215 ms 264 ms 207 ms scha34-0-br2.il.us.ibm.net [165.87.34.2] 7 203 ms 284 ms 218 ms scha34-16-sar1.il.us.ibm.net [165.87.34.19] 8 364 ms 210 ms 222 ms aads.sprint.net [198.32.130.13] 9 229 ms 207 ms 262 ms sl-chi-6-H3/0-T3.sprintlink.net [144.228.56.9] 10 209 ms 222 ms 266 ms 144.232.0.145 11 239 ms 245 ms 241 ms sl-chi-15-P11/0/0-155M.sprintlink.net [144.232.0.141] 12 380 ms 252 ms 337 ms sl-kc-2-H3/0-T3.sprintlink.net [144.228.10.70] 13 372 ms 580 ms 358 ms sl-fw-5-H3/0-T3.sprintlink.net [144.228.10.78] 14 426 ms 390 ms 288 ms sl-fw-10-F0/0.sprintlink.net [144.228.30.10] 15 421 ms 404 ms 423 ms sl-scb-1-s0-T1.sprintlink.net [144.228.130.94] 16 299 ms 295 ms 304 ms comet.1stnet.com [206.104.32.201] Name: Elliot Poger Modem: Zoom Internal 14.4 modem ISP: Sirius Connections Date: March 1997 Best round-trip to Internet: 159ms 1 asft-a.sirius.com (205.134.228.1) 182 168 169 2 140.174.229.254 (140.174.229.254) 159 169 169 3 border-sfn-s0-0.sirius.net (205.134.254.1) 179 169 189 4 tlg-cust-link.tlg.net (140.174.188.3) 189 279 199 5 bordercore1-hssi0-0.SanFrancisco.mci.net (166.48.13.249) 179 219 6 core2-hssi-3.Boston.mci.net (204.70.1.10) 319 569 389 7 core3-hssi-5.Boston.mci.net (204.70.1.2) 259 279 289 8 core2-hssi-3.Boston.mci.net (204.70.1.10) 330 308 9 borderx2-fddi-1.Boston.mci.net (204.70.179.68) 339 309 369 10 nearnet.Boston.mci.net (204.70.179.122) 319 268 279 11 ihtfp.mit.edu (192.233.33.3) 280 298 12 B24-RTR-FDDI.MIT.EDU (18.168.0.6) 299 300 289 13 radole.lcs.mit.edu (18.10.0.1) 299 269 289 14 lcs-5-floor.lcs.mit.edu (18.10.0.4) 289 279 289 15 mintaka.lcs.mit.edu (18.26.0.36) 280 258 Name: Chris Trucksess Modem: SupraExpress 288 ISP: MacConnect Date: June 1997 Best round-trip to Internet: 164ms 1 3/3 0.164 0.174 0.182 206.80.173.66 accs-as27-ep00.nwrk.grid.net 2 3/3 0.165 0.174 0.186 206.80.173.254 core-bb01-ep10.nwrk.grid.net 3 3/3 0.233 0.260 0.313 206.80.180.234 4 3/3 0.236 0.273 0.323 198.32.136.19 sanjose1-br1.bbnplanet.net 5 3/3 0.234 0.264 0.322 4.0.1.10 paloalto-br2.bbnplanet.net 6 2/3 0.254 0.296 0.339 131.119.0.199 su-pr1.bbnplanet.net 7 3/3 0.255 0.327 0.365 198.31.10.1 sunet-gateway.stanford.edu 8 3/3 0.237 0.244 0.255 171.64.1.33 core-gateway.stanford.edu
Other Devices and Services Name: Stuart Cheshire Modem: Metricom 'Ricochet' packet radio (Datagram mode) ISP: Stanford Date: May 1996 Best round-trip to Internet: 167ms 1 router-r.Mobile.Stanford.EDU (171.64.69.65) 170.957 173.282 166.994 2 Gates-1-gateway.Stanford.EDU (171.64.67.1) 173.368 171.179 168.707 3 Core-gateway.Stanford.EDU (171.64.1.71) 177.811 199.348 175.461 4 SUNet-Gateway.Stanford.EDU (171.64.1.34) * 291.695 173.362 5 su-pr1.bbnplanet.net (198.31.10.3) 173.289 169.367 172.752 6 paloalto-br1.bbnplanet.net (131.119.0.193) 172.461 167.232 169.455 7 chicago2-br1.bbnplanet.net (4.0.1.2) * 218.801 229.986 8 chicago1-br1.bbnplanet.net (199.92.131.11) 224.229 222.781 240.190 9 chicago1-br2.bbnplanet.net (4.0.1.194) 351.859 227.370 226.487 10 boston1-br1.bbnplanet.net (4.0.1.126) 240.703 241.710 248.677 11 boston1-br2.bbnplanet.net (4.0.1.182) 330.581 371.454 276.212 12 cambridge2-br1.bbnplanet.net (4.0.1.186) 247.322 247.240 247.815 13 ihtfp.mit.edu (192.233.33.3) 253.236 240.968 241.786 14 B24-RTR-FDDI.MIT.EDU (18.168.0.6) 250.118 244.930 244.972 15 radole.lcs.mit.edu (18.10.0.1) 247.501 * 237.295 16 lcs-5-floor.lcs.mit.edu (18.10.0.4) 247.795 249.270 240.618 17 mintaka.lcs.mit.edu (18.26.0.36) 254.491 249.159 247.626 Name: John Massaglia Modem: Apple Geoport Telecom Pod 2.0 OS: PowerMac 7600/132 running System 7.5.5 & OT 1.1.1 ISP: Internet Technology Systems Date: August 1, 1997 Best round-trip to Internet: 189ms 1 lisa.itsnet.com. (192.41.96.8 ): 265ms 201ms 189ms 2 bart.itsnet.com. (192.41.96.1 ): 234ms 211ms 210ms 3 martin.itsnet.com. (192.41.96.37 ): 251ms 216ms 237ms 4 f0-0.slkcic01.eli.net. (207.0.56.20 ): 221ms 258ms 204ms 5 sl-che-6-h10/0-t3.sprintlink.net (144.224.16.5 ): 240ms 249ms 248ms 6 sl-che-1-f0/0.sprintlink.net. (144.224.10.1 ): 270ms 263ms 261ms 7 sl-stk-1-h3/0-t3.sprintlink.net. (144.228.10.89 ): 259ms 231ms 271ms 8 sl-stk-23-p4/0/0-155m.sprintlink (144.232.1.26 ): 229ms 250ms 298ms 9 sl-stk-20-p4/0/0-155m.sprintlink (144.232.1.21 ): 271ms 261ms 262ms 10 144.232.8.13 (144.232.8.13 ): 285ms 259ms 275ms 11 paloalto-br1.bbnplanet.net. (4.0.1.65 ): 252ms 239ms 275ms 12 su-pr1.bbnplanet.net. (131.119.0.199 ): 288ms 258ms 279ms 13 sunet-gateway.stanford.edu. (198.31.10.1 ): 281ms 256ms 290ms 14 core-gateway.stanford.edu. (171.64.1.33 ): 271ms 254ms * Name: Stuart Cheshire Modem: Apple Geoport Telecom Pod / Express Modem software 3.0.1 OS: PowerMac 6100/66 running System 7.5.5 & OT 1.1 ISP: Scruz-Net Date: February 1997 Best round-trip to Internet: 221ms 1 3/3 0.230 0.266 0.299 165.227.2.101 sj-ts2-eth1.scruz.net 2 3/3 0.241 0.289 0.348 165.227.2.254 sj-border-eth1-0.scruz.net 3 3/3 0.221 0.253 0.289 198.32.136.12 mae-west.sanfrancisco.mci.net 4 3/3 0.251 0.337 0.509 204.70.1.205 core1-hssi3-0.sanfrancisco.mci.net 5 2/3 0.369 0.430 0.491 204.70.2.2 border1-fddi-0.washington.mci.net 6 3/3 0.318 0.376 0.411 204.70.2.2 border1-fddi-0.washington.mci.net 7 1/3 0.452 0.452 0.452 204.70.56.6 suranet-wtn-ds3.washington.mci.net 8 2/3 0.350 0.370 0.390 4.0.1.229 washdc1-br1.bbnplanet.net 9 2/3 0.308 0.509 0.710 4.0.1.174 washdc1-br2.bbnplanet.net 10 2/3 0.391 0.396 0.401 4.0.1.114 nyc1-br1.bbnplanet.net 11 1/3 0.410 0.410 0.410 4.0.1.178 nyc1-br2.bbnplanet.net 12 2/3 0.370 0.379 0.388 4.0.2.22 cambridge1-br1.bbnplanet.net 13 1/3 0.439 0.439 0.439 199.94.205.102 cambridge1-br2.bbnplanet.net 14 1/3 0.417 0.417 0.417 4.0.2.26 cambridge2-br2.bbnplanet.net 15 2/3 0.380 0.386 0.392 192.233.33.3 ihtfp.mit.edu 16 3/3 0.369 0.389 0.428 18.168.0.6 b24-rtr-fddi.mit.edu 17 2/3 0.391 0.399 0.408 18.10.0.1 radole.lcs.mit.edu 18 2/3 0.401 0.410 0.419 18.10.0.4 lcs-5-floor.lcs.mit.edu 19 2/3 0.359 0.374 0.390 18.26.0.36 mintaka.lcs.mit.edu Name: Dan Knight Modem: Apple GeoPort Telecom Pod / Express Modem software 3.1.1 ISP: Iserv Best round-trip to Internet: 258ms 1 iserv-max-5.iserv.net. (204.177.184.55): 258 ms 319 ms 270 ms 2 iserv-gw1.iserv.net. (204.177.184.1): 311 ms 207 ms 258 ms 3 527.hssi5-0.gw3.chi1.alter.net. (137.39.130.77): 346 ms 312 ms 290 ms 4 423.atm1-0.cr2.chi1.alter.net. (137.39.13.98): 296 ms 251 ms 263 ms 5 106.hssi12-0.cr2.pao1.alter.net. (137.39.71.173): 359 ms 386 ms 402 ms 6 312.atm2-0.br1.pao1.alter.net. (137.39.13.145): 367 ms 466 ms 341 ms 7 decwrl.bbnplanet.net. (198.32.176.5): 281 ms 370 ms 350 ms 8 paloalto-br1.bbnplanet.net. (4.0.1.57): 374 ms 419 ms 299 ms 9 oakland-br1.bbnplanet.net. (4.0.1.62): 327 ms 611 ms 562 ms 10 denver-br1.bbnplanet.net. (4.0.1.134): 379 ms 430 ms * 11 denver-br2.bbnplanet.net. (4.0.1.190): 623 ms 593 ms 630 ms 12 chicago1-br2.bbnplanet.net. (4.0.1.130): 349 ms 292 ms 477 ms 13 boston1-br1.bbnplanet.net. (4.0.1.126): * 387 ms 419 ms 14 boston1-br2.bbnplanet.net. (4.0.1.182): 488 ms 390 ms * 15 cambridge2-br1.bbnplanet.net. (4.0.1.186): 451 ms 409 ms 436 ms 16 ihtfp.mit.edu. (192.233.33.3): 332 ms 414 ms 448 ms 17 b24-rtr-fddi.mit.edu. (18.168.0.14): 538 ms 551 ms 399 ms 18 radole.lcs.mit.edu. (18.10.0.1): 482 ms 352 ms 408 ms 19 lcs-5-floor.lcs.mit.edu. (18.10.0.4): 464 ms 359 ms 367 ms 20 mintaka.lcs.mit.edu. (18.26.0.36): * 414 ms 427 ms Name: Keys Botzum Modem: Megahertz 28.8 modem, connecting to the Internet via Compuserve ISP: Compuserve Date: May 1997 Best round-trip to Internet: 300ms 1 301 ms 300 ms 301 ms csi.transarc.com [158.98.16.205] 2 301 ms 310 ms 321 ms ags-plus-16.transarc.com [158.98.16.1] 3 311 ms 300 ms 301 ms cisco-gateway.transarc.com [158.98.16.30] 4 321 ms 320 ms 311 ms pgh4-gw-s3-2.pgh.prep.net [129.250.8.1] 5 451 ms 310 ms 361 ms pgh5-gw-e2.pgh.prep.net [129.250.1.10] 6 311 ms 330 ms 311 ms psc1-gw-h1-1-0.pgh.prep.net [129.250.200.9] 7 321 ms 320 ms 321 ms nss5.psc.edu [192.88.114.254] 8 531 ms 320 ms 321 ms border4-hssi1-0.WillowSprings.mci.net [204.70.108.5] 9 580 ms * 851 ms core1-fddi-1.WillowSprings.mci.net [204.70.104.33] 10 431 ms 380 ms 401 ms bordercore2-loopback.SanFrancisco.mci.net [166.48.14.1] 11 400 ms 381 ms 681 ms hay-bbn2-nap.SanFrancisco.mci.net [166.48.15.254] 12 400 ms * 420 ms su-pr1.bbnplanet.net [131.119.0.199] 13 410 ms 491 ms 481 ms sunet-gateway.stanford.edu [198.31.10.1] 14 401 ms 421 ms 470 ms Core-gateway.Stanford.EDU [171.64.1.33] 15 470 ms 401 ms 401 ms jenkins-gateway.Stanford.EDU [171.64.1.167] 16 401 ms 410 ms 401 ms rescomp.Stanford.EDU [171.64.187.14] Name: Jason Campbell Modem: Metricom 'Ricochet' packet radio (Hayes Modem emulation mode) ISP: Metricom Date: February 1997 Best round-trip to Internet: 370ms 1 465 ms 397 ms 865 ms mg-sj4v.mcdn.net [168.253.32.113] 2 415 ms 645 ms 497 ms n953a-c4r1-e1.mcdn.net [204.179.141.1] 3 495 ms 370 ms 437 ms 502.Hssi4-0.GW1.SCL1.ALTER.NET [137.39.133.65] 4 374 ms 437 ms 445 ms 321.atm1-0.cr2.scl1.alter.net [137.39.13.166] 5 720 ms 603 ms 489 ms 107.Hssi4-0.CR2.BOS1.Alter.Net [137.39.58.134] 6 477 ms 594 ms 771 ms Hssi3-0.Boston6.MA.Alter.Net [137.39.101.165] 7 668 ms 611 ms 632 ms Fddi1-0.Boston3.MA.Alter.Net [137.39.99.1] 8 482 ms 1596 ms 599 ms Hssi0-0.Cambridge.MA.Alter.Net [137.39.100.98] 9 588 ms 581 ms 487 ms ihtfp.mit.edu [192.233.33.3] 10 504 ms 1028 ms 464 ms B24-RTR-FDDI.MIT.EDU [18.168.0.6] 11 960 ms 735 ms 485 ms radole.lcs.mit.edu [18.10.0.1] 12 439 ms 447 ms 499 ms lcs-5-floor.lcs.mit.edu [18.10.0.4] 13 518 ms 1223 ms 1379 ms lcs.mit.edu [18.26.0.36] Name: Michel Floyd Modem: Metricom 'Ricochet' packet radio (Hayes Modem emulation mode) ISP: Metricom Date: March 1997 Best round-trip to Internet: 400ms Tracing route to lcs.mit.edu [18.26.0.36] over a maximum of 30 hops: 1 400 ms 434 ms 623 ms mg-sj4v.mcdn.net [168.253.32.113] 2 792 ms 469 ms 561 ms n953a-c4r1-e1.mcdn.net [204.179.141.1] 3 730 ms 507 ms 691 ms 502.Hssi8-0.GW1.SCL1.ALTER.NET [137.39.133.65] 4 730 ms 703 ms 420 ms 321.atm1-0.cr1.scl1.alter.net [137.39.13.150] 5 833 ms 974 ms 757 ms 107.Hssi12-0.CR1.PAO1.Alter.Net [137.39.71.149] 6 618 ms 1125 ms 406 ms 411.atm10-0.br1.pao1.alter.net [137.39.13.141] 7 605 ms 776 ms 473 ms decwrl.bbnplanet.net [198.32.176.5] 8 611 ms 446 ms 475 ms paloalto-br1.bbnplanet.net [4.0.1.57] 9 406 ms 469 ms 938 ms oakland-br1.bbnplanet.net [4.0.1.62] 10 433 ms 532 ms 899 ms denver-br1.bbnplanet.net [4.0.1.134] 11 741 ms 708 ms 561 ms denver-br2.bbnplanet.net [4.0.1.190] 12 532 ms 577 ms 527 ms chicago1-br1.bbnplanet.net [4.0.1.130] 13 711 ms 457 ms 812 ms chicago1-br2.bbnplanet.net [4.0.1.194] 14 587 ms 552 ms 716 ms boston1-br1.bbnplanet.net [4.0.1.126] 15 781 ms 628 ms 493 ms boston1-br2.bbnplanet.net [4.0.1.182] 16 675 ms 503 ms 509 ms cambridge2-br1.bbnplanet.net [4.0.1.186] 17 701 ms 664 ms 680 ms ihtfp.mit.edu [192.233.33.3] 18 949 ms 939 ms 994 ms B24-RTR-FDDI.MIT.EDU [18.168.0.6] 19 683 ms 672 ms 484 ms radole.lcs.mit.edu [18.10.0.1] 20 513 ms 641 ms 774 ms lcs-5-floor.lcs.mit.edu [18.10.0.4] 21 626 ms 670 ms 848 ms lcs.mit.edu [18.26.0.36]


One thing that's interesting here is that 14.4 modems do as well or better than some 28.8 models. The modems that are supposed to be 'twice as fast' are often no faster at all. They may have greater capacity, but they're no faster.

The Ricochet results are a lot slower -- about 400ms for the first hop in modem emulation mode -- but then a Metricom radio is a wireless device. Not that that's any excuse, mind you. (The speed of radio waves in air is about 50% faster than the speed of light in glass fibre, or electricity in copper.) In datagram mode (Starmode) the Metricom radio does better, but it is still not as fast as the best wired modems.

ISDN, not surprisingly, is significantly better than wired modems. However, it is even better than you might expect based on looking only at the bandwidth. Even though ISDN's throughput is only twice as much as a wired modem, its latency is five times better that the best 33.6kbps modem.

ISDN is ten times faster than the current Apple Geoport Express Modem software. This is very sad. The Geoport hardware is fast enough to operate a full-duplex echo-cancelling speakerphone entirely in software. Delivering little data packets should be easy for it. The Geoport Express Modem should be up at the top with the ISDN results, not at the bottom of the list with the wireless devices. This is a huge opportunity for Apple. All it would take, to make the Geoport Express Modem give performance that feels as fast as ISDN, would be a simple re-examination of the Express Modem software, this time by someone thinking about optimizing latency as well as throughput.

Top of the list are the cable modems and ADSL. This is a very reassuring sign for the future of home connectivity options.


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