Known not working: root@asylum.nyi:/home/peter # tcptraceroute -p 41694 mx1.freebsd.org 22 Selected device igb0, address 96.47.72.142, port 41694 for outgoing packets Tracing the path to mx1.freebsd.org (8.8.178.115) on TCP port 22 (ssh), 30 hops max 1 * devs.igw0.nyi.freebsd.org (96.47.72.130) 0.125 ms 0.111 ms 2 96.47.66.33.static.nyinternet.net (96.47.66.33) 0.524 ms 0.315 ms 0.329 ms 3 cs90.cs89new.v.ewr.nyinternet.net (96.47.77.209) 0.393 ms 0.445 ms 0.311 ms 4 ae2.mpr1.ewr4.us.zip.zayo.com (208.184.34.237) 0.574 ms 0.574 ms 0.560 ms 5 ae5.mpr1.ewr1.us.zip.zayo.com (64.125.31.234) 1.326 ms 1.393 ms 1.267 ms 6 ae10.cs1.lga5.us.zip.zayo.com (64.125.20.69) 66.976 ms 67.001 ms 66.995 ms 7 ae3.cs1.ord2.us.eth.zayo.com (64.125.29.209) 66.946 ms 67.142 ms 67.012 ms 8 ae5.cs1.den5.us.eth.zayo.com (64.125.29.19) 67.286 ms 67.077 ms 82.377 ms 9 ae6.cs1.sjc2.us.eth.zayo.com (64.125.31.219) 66.988 ms 67.061 ms 67.080 ms 10 ae27.cr1.sjc2.us.zip.zayo.com (64.125.30.231) 66.531 ms 66.496 ms 66.506 ms 11 ae16.mpr3.sjc7.us.zip.zayo.com (64.125.31.13) 66.978 ms 67.011 ms 67.024 ms 12 * * * 13 * * * 14 * * * 15 * * * Known working (different source port, same endpoints): root@asylum.nyi:/home/peter # tcptraceroute -p 41695 mx1.freebsd.org 22 Selected device igb0, address 96.47.72.142, port 41695 for outgoing packets Tracing the path to mx1.freebsd.org (8.8.178.115) on TCP port 22 (ssh), 30 hops max 1 devs.igw0.nyi.freebsd.org (96.47.72.130) 0.116 ms 0.115 ms 0.088 ms 2 96.47.66.33.static.nyinternet.net (96.47.66.33) 0.407 ms 0.508 ms 0.485 ms 3 cs90.cs89new.v.ewr.nyinternet.net (96.47.77.209) 0.367 ms 0.826 ms 0.372 ms 4 ae2.mpr1.ewr4.us.zip.zayo.com (208.184.34.237) 0.598 ms 0.499 ms 0.494 ms 5 ae5.mpr1.ewr1.us.zip.zayo.com (64.125.31.234) 1.332 ms 1.438 ms 1.347 ms 6 ae10.cs1.lga5.us.zip.zayo.com (64.125.20.69) 66.988 ms 90.791 ms 66.932 ms 7 ae3.cs1.ord2.us.eth.zayo.com (64.125.29.209) 66.962 ms 67.054 ms 66.937 ms 8 ae5.cs1.den5.us.eth.zayo.com (64.125.29.19) 67.044 ms 67.124 ms 77.995 ms 9 ae6.cs1.sjc2.us.eth.zayo.com (64.125.31.219) 67.073 ms 67.142 ms 94.775 ms 10 ae27.cr1.sjc2.us.zip.zayo.com (64.125.30.231) 67.390 ms 66.624 ms 66.497 ms 11 ae16.mpr3.sjc7.us.zip.zayo.com (64.125.31.13) 67.067 ms 67.110 ms 67.392 ms 12 PAT1.SJC.yahoo.com (206.223.116.16) 78.385 ms 78.390 ms 78.395 ms 13 UNKNOWN-216-115-101-X.yahoo.com (216.115.101.227) 78.844 ms 78.906 ms 78.966 ms 14 routerer-ext.ysv.freebsd.org (8.8.178.93) 78.553 ms 78.356 ms 78.573 ms 15 mx1.freebsd.org (8.8.178.115) [open] 78.958 ms 78.959 ms 79.196 ms other direction... known not working: root@mailhub:/home/peter # tcptraceroute -p 33277 asylum.nyi 22 Selected device igb0, address 8.8.178.109, port 33277 for outgoing packets Tracing the path to asylum.nyi (96.47.72.142) on TCP port 22 (ssh), 30 hops max 1 routerer.v106.ysv.freebsd.org (8.8.178.98) 0.154 ms 0.133 ms 0.123 ms 2 bgp0.ysv.freebsd.org (8.8.178.90) 0.376 ms 0.368 ms 0.350 ms 3 ae-1-d188.pat1.sjc.yahoo.com (216.115.101.224) 1.127 ms 1.301 ms 1.204 ms 4 ae-5.pat2.sjc.yahoo.com (216.115.105.19) 1.194 ms 1.281 ms 1.420 ms 5 et-10-1-0.pat1.laz.yahoo.com (216.115.107.151) 11.649 ms 11.541 ms 11.446 ms 6 ae0-0.pat2.laz.yahoo.com (216.115.107.133) 11.777 ms 11.524 ms 11.586 ms 7 et-2-1-1.pat2.dax.yahoo.com (216.115.107.154) 42.362 ms 43.717 ms 43.911 ms 8 ae-2.pat1.dez.yahoo.com (216.115.96.33) 76.198 ms 76.481 ms 83.412 ms 9 et-8-1-0.pat2.nyc.yahoo.com (216.115.104.209) 81.755 ms 83.439 ms 88.925 ms 10 ae-1.pat1.nyc.yahoo.com (216.115.111.65) 84.004 ms 83.364 ms 83.175 ms 11 * * * 12 cs70.cs80.ewr.nyinternet.net (96.47.77.33) 80.136 ms 80.163 ms 80.173 ms 13 cs80.cs89new.v.ewr.nyinternet.net (96.47.77.158) 78.563 ms 78.527 ms 78.641 ms 14 96.47.66.42.static.nyinternet.net (96.47.66.42) 78.371 ms 78.449 ms 78.457 ms 15 * * * 16 * * * 17 * * * 18 * * * 19 * * * 20 * * * 21 * * * 22 * * * 23 * * * 24 * * * 25 *^C Known working (different source port): root@mailhub:/home/peter # tcptraceroute -p 33278 asylum.nyi 22 Selected device igb0, address 8.8.178.109, port 33278 for outgoing packets Tracing the path to asylum.nyi (96.47.72.142) on TCP port 22 (ssh), 30 hops max 1 routerer.v106.ysv.freebsd.org (8.8.178.98) 0.125 ms 0.071 ms 0.173 ms 2 bgp0.ysv.freebsd.org (8.8.178.90) 0.311 ms 0.328 ms 0.348 ms 3 ae-1-d188.pat1.sjc.yahoo.com (216.115.101.224) 1.011 ms 0.923 ms 0.969 ms 4 ae-5.pat2.sjc.yahoo.com (216.115.105.19) 4.456 ms 2.201 ms 1.566 ms 5 et-10-1-0.pat1.laz.yahoo.com (216.115.107.151) 11.736 ms 11.649 ms 11.805 ms 6 ae0-0.pat2.laz.yahoo.com (216.115.107.133) 11.592 ms 11.768 ms 11.483 ms 7 et-2-1-1.pat2.dax.yahoo.com (216.115.107.154) 41.687 ms 41.768 ms 41.820 ms 8 ae-2.pat1.dez.yahoo.com (216.115.96.33) 83.211 ms 76.407 ms 76.184 ms 9 et-8-1-0.pat2.nyc.yahoo.com (216.115.104.209) 81.751 ms 88.661 ms 88.620 ms 10 ae-1.pat1.nyc.yahoo.com (216.115.111.65) 83.081 ms 83.119 ms 83.280 ms 11 * * * 12 cs70.cs80.ewr.nyinternet.net (96.47.77.33) 80.080 ms 80.225 ms 80.165 ms 13 cs80.cs89new.v.ewr.nyinternet.net (96.47.77.158) 78.542 ms 78.547 ms 78.682 ms 14 96.47.66.42.static.nyinternet.net (96.47.66.42) 78.370 ms 78.495 ms 78.308 ms 15 asylum.nyi.freebsd.org (96.47.72.142) [open] 78.419 ms 78.620 ms 78.659 ms vs a trace to another destination we have zero problems with. All of the endpoints above have 100% reliability with others, including this one. root@asylum.nyi:/home/peter # tcptraceroute admin.bme.freebsd.org 22 Selected device igb0, address 96.47.72.142, port 25694 for outgoing packets Tracing the path to admin.bme.freebsd.org (213.138.116.68) on TCP port 22 (ssh), 30 hops max 1 devs.igw0.nyi.freebsd.org (96.47.72.130) 0.130 ms 0.128 ms 0.170 ms 2 96.47.66.33.static.nyinternet.net (96.47.66.33) 0.443 ms 0.439 ms 0.395 ms 3 cs80.cs89new.v.ewr.nyinternet.net (96.47.77.157) 0.414 ms 0.348 ms 0.385 ms 4 cs90.cs50.v.ewr.nyinternet.net (96.47.77.54) 1.310 ms 1.268 ms 1.213 ms 5 38.88.134.57 1.564 ms 1.476 ms 1.572 ms 6 be2809.ccr21.jfk05.atlas.cogentco.com (154.54.81.201) 1.776 ms 1.830 ms 1.747 ms 7 be2061.ccr42.jfk02.atlas.cogentco.com (154.54.3.69) 1.939 ms 2.189 ms 2.014 ms 8 be2490.ccr42.lon13.atlas.cogentco.com (154.54.42.86) 73.522 ms 73.678 ms 73.553 ms 9 be2492.ccr21.man01.atlas.cogentco.com (154.54.39.126) 75.626 ms 75.596 ms 75.664 ms 10 be2826.rcr21.man02.atlas.cogentco.com (154.54.59.10) 78.015 ms 77.811 ms 80.946 ms 11 149.14.36.18 79.693 ms 79.680 ms 79.730 ms 12 te0-1.cr1.lds.bytemark.co.uk (91.223.58.69) 78.570 ms 78.585 ms 78.561 ms 13 te1-6.cr1.yrk.bytemark.co.uk (91.223.58.76) 80.172 ms 80.066 ms 80.218 ms 14 po1.ar1.dc1.yo26.yrk.bytemark.co.uk (91.223.58.29) 80.902 ms 80.936 ms 81.110 ms 15 213.138.116.46 79.499 ms 79.417 ms 79.338 ms 16 admin.bme.freebsd.org (213.138.116.68) [open] 79.489 ms 79.381 ms 79.396 ms root@mailhub:/home/peter # tcptraceroute admin.bme.freebsd.org 22 Selected device igb0, address 8.8.178.109, port 54410 for outgoing packets Tracing the path to admin.bme.freebsd.org (213.138.116.68) on TCP port 22 (ssh), 30 hops max 1 routerer.v106.ysv.freebsd.org (8.8.178.98) 0.121 ms 0.079 ms 0.154 ms 2 bgp0.ysv.freebsd.org (8.8.178.90) 0.408 ms 0.237 ms 0.261 ms 3 ae-1-d188.pat1.sjc.yahoo.com (216.115.101.224) 0.949 ms 1.117 ms 0.948 ms 4 sjo-b21-link.telia.net (213.248.89.46) 1.358 ms 1.459 ms 1.425 ms 5 ntt-ic-323771-sjo-b21.c.telia.net (62.115.12.53) 1.409 ms 1.419 ms 1.290 ms 6 ae-10.r23.snjsca04.us.bb.gin.ntt.net (129.250.3.174) 3.116 ms 2.472 ms 1.342 ms 7 ae-3.r21.sttlwa01.us.bb.gin.ntt.net (129.250.3.125) 19.467 ms 19.649 ms 19.600 ms 8 ae-0.r20.sttlwa01.us.bb.gin.ntt.net (129.250.2.53) 19.628 ms 19.613 ms 19.669 ms 9 ae-0.r24.nycmny01.us.bb.gin.ntt.net (129.250.4.14) 76.464 ms 76.350 ms 76.406 ms 10 ae-9.r24.londen12.uk.bb.gin.ntt.net (129.250.2.19) 156.057 ms 149.460 ms 149.522 ms 11 ae-21.r00.londen10.uk.bb.gin.ntt.net (129.250.4.24) 151.178 ms 151.510 ms 151.133 ms 12 81.25.207.214 150.020 ms 149.659 ms 149.831 ms 13 te1-5.cr2.yrk.bytemark.co.uk (91.223.58.144) 157.620 ms 157.620 ms 157.625 ms 14 po1.ar2.dc1.yo26.yrk.bytemark.co.uk (91.223.58.33) 156.003 ms 155.729 ms 155.662 ms 15 213.138.116.46 155.609 ms 155.616 ms 155.601 ms 16 admin.bme.freebsd.org (213.138.116.68) [open] 155.776 ms 155.939 ms 156.115 ms And the reverses: root@admin.bme:/home/peter # tcptraceroute mailhub 22 Selected device igb0, address 213.138.116.68, port 39761 for outgoing packets Tracing the path to mailhub (8.8.178.109) on TCP port 22 (ssh), 30 hops max 1 igw1.bme.FreeBSD.org (213.138.116.67) 0.124 ms 0.052 ms 0.107 ms 2 213.138.116.42 0.461 ms 0.403 ms 0.423 ms 3 po1.cr1.yrk.bytemark.co.uk (91.223.58.28) 0.731 ms 0.871 ms 0.625 ms 4 te0-2.cr1.lds.bytemark.co.uk (91.223.58.77) 2.120 ms 2.062 ms 2.067 ms 5 te0-0-0-4.cr3.man.bytemark.co.uk (91.223.58.68) 2.533 ms 2.327 ms 2.343 ms 6 te0-4-0-1.rcr21.man02.atlas.cogentco.com (149.14.36.17) 2.369 ms 2.471 ms 2.307 ms 7 be2826.ccr21.man01.atlas.cogentco.com (154.54.59.9) 2.860 ms 2.630 ms 2.583 ms 8 be2492.ccr42.lon13.atlas.cogentco.com (154.54.39.125) 8.500 ms 8.519 ms 8.508 ms 9 be2871.ccr21.lon01.atlas.cogentco.com (154.54.58.186) 8.571 ms 8.291 ms 8.386 ms 10 ldn-b1-link.telia.net (213.248.70.237) 8.571 ms 8.528 ms 8.533 ms 11 ldn-bb2-link.telia.net (62.115.142.234) 8.396 ms 8.270 ms 8.353 ms 12 ash-bb4-link.telia.net (62.115.116.66) 83.215 ms 83.164 ms 83.192 ms 13 sjo-b21-link.telia.net (213.155.135.157) 151.763 ms 151.351 ms 151.406 ms 14 yahoo-ic-319093-sjo-b21.c.telia.net (213.248.89.47) 161.522 ms 161.524 ms 161.653 ms 15 UNKNOWN-216-115-101-X.yahoo.com (216.115.101.225) 158.654 ms 158.541 ms 158.734 ms 16 routerer-ext.ysv.freebsd.org (8.8.178.93) 164.552 ms 164.450 ms 164.357 ms 17 mailhub.freebsd.org (8.8.178.109) [open] 157.175 ms 157.158 ms 157.083 ms root@admin.bme:/home/peter # tcptraceroute asylum.nyi 22 Selected device igb0, address 213.138.116.68, port 30361 for outgoing packets Tracing the path to asylum.nyi (96.47.72.142) on TCP port 22 (ssh), 30 hops max 1 igw1.bme.FreeBSD.org (213.138.116.67) 0.079 ms 0.055 ms 0.079 ms 2 213.138.116.42 0.528 ms 0.401 ms 0.645 ms 3 po1.cr1.yrk.bytemark.co.uk (91.223.58.28) 0.841 ms 0.707 ms 0.747 ms 4 te0-2.cr1.lds.bytemark.co.uk (91.223.58.77) 2.099 ms 1.999 ms 2.064 ms 5 te0-0-0-4.cr3.man.bytemark.co.uk (91.223.58.68) 2.503 ms 2.317 ms 2.639 ms 6 te0-4-0-1.rcr21.man02.atlas.cogentco.com (149.14.36.17) 2.555 ms 2.376 ms 2.284 ms 7 be2826.ccr21.man01.atlas.cogentco.com (154.54.59.9) 2.654 ms 2.758 ms 2.725 ms 8 be2492.ccr42.lon13.atlas.cogentco.com (154.54.39.125) 8.527 ms 8.536 ms 8.564 ms 9 be2490.ccr42.jfk02.atlas.cogentco.com (154.54.42.85) 79.578 ms 79.673 ms 79.712 ms 10 be2061.ccr21.jfk05.atlas.cogentco.com (154.54.3.70) 79.562 ms 78.049 ms 78.373 ms 11 be2809.rcr21.b007023-2.jfk05.atlas.cogentco.com (154.54.81.202) 81.770 ms 81.714 ms 81.827 ms 12 38.88.134.58 81.496 ms 81.928 ms 81.513 ms 13 cs50.cs90.v.ewr.nyinternet.net (96.47.77.25) 83.242 ms 82.446 ms 82.386 ms 14 cs90.cs89new.v.ewr.nyinternet.net (96.47.77.210) 78.874 ms 79.268 ms 78.835 ms 15 96.47.66.42.static.nyinternet.net (96.47.66.42) 78.627 ms 78.642 ms 78.554 ms 16 asylum.nyi.freebsd.org (96.47.72.142) [open] 82.450 ms 82.613 ms 82.511 ms Curiously, other routes that seem to be working go via other than pat1.sjc: root@mailhub:/home/peter # tcptraceroute ftp-mirror0.isc.freebsd.org 22 Selected device igb0, address 8.8.178.109, port 56351 for outgoing packets Tracing the path to ftp-mirror0.isc.freebsd.org (149.20.1.197) on TCP port 22 (ssh), 30 hops max 1 routerer.v106.ysv.freebsd.org (8.8.178.98) 0.157 ms 0.195 ms 0.198 ms 2 bgp0.ysv.freebsd.org (8.8.178.90) 0.383 ms 0.359 ms 0.407 ms 3 ae-1-d188.pat1.sjc.yahoo.com (216.115.101.224) 1.320 ms 0.980 ms 1.033 ms 4 ae-4.pat1.pao.yahoo.com (216.115.107.44) 1.816 ms 1.769 ms 1.752 ms 5 as1280.sfmix.org (206.197.187.11) 3.801 ms 6.078 ms 3.129 ms 6 149.20.65.42 2.526 ms 2.696 ms 2.700 ms 7 ftp-mirror0.isc.freebsd.org (149.20.1.197) [open] 2.443 ms 2.364 ms 2.299 ms eter@ftp-mirror0.isc:~ % traceroute mailhub traceroute to mailhub.freebsd.org (8.8.178.109), 64 hops max, 40 byte packets 1 igw0 (149.20.1.194) 0.769 ms 0.780 ms 0.706 ms 2 palo-b1-link.telia.net (62.115.42.109) 0.231 ms 0.307 ms 0.201 ms 3 sjo-b21-link.telia.net (62.115.125.3) 1.390 ms sjo-b21-link.telia.net (62.115.118.217) 1.168 ms sjo-b21-link.telia.net (62.115.125.1) 1.403 ms 4 yahoo-ic-319093-sjo-b21.c.telia.net (213.248.89.47) 2.302 ms 1.751 ms 1.501 ms 5 UNKNOWN-216-115-101-X.yahoo.com (216.115.101.225) 1.916 ms 1.996 ms 1.985 ms 6 routerer-ext.ysv.freebsd.org (8.8.178.93) 2.163 ms 2.329 ms 2.073 ms 7 mailhub.freebsd.org (8.8.178.109) 1.687 ms 1.720 ms 1.644 ms Or from comcast: peter@overcee[ 1:00PM]~-1013> traceroute mailhub traceroute to mailhub.freebsd.org (8.8.178.109), 64 hops max, 40 byte packets 1 fw (10.0.0.1) 0.086 ms 0.065 ms 0.093 ms 2 96.120.88.17 (96.120.88.17) 8.891 ms 8.747 ms 10.670 ms 3 te-0-7-0-14-sur04.hayward.ca.sfba.comcast.net (68.85.190.177) 12.878 ms 9.519 ms 8.967 ms 4 68.85.155.53 (68.85.155.53) 9.795 ms hu-0-4-0-0-sur03.hayward.ca.sfba.comcast.net (68.85.155.197) 8.890 ms 9.815 ms 5 hu-0-2-0-2-ar01.santaclara.ca.sfba.comcast.net (68.87.192.209) 10.480 ms hu-0-2-0-3-ar01.santaclara.ca.sfba.comcast.net (68.87.192.213) 15.276 ms 15.482 ms 6 be-33651-cr01.sunnyvale.ca.ibone.comcast.net (68.86.90.93) 14.768 ms 10.828 ms 10.373 ms 7 hu-0-14-0-0-pe02.529bryant.ca.ibone.comcast.net (68.86.89.234) 14.880 ms hu-0-10-0-1-pe02.529bryant.ca.ibone.comcast.net (68.86.86.30) 11.199 ms hu-0-13-0-1-pe02.529bryant.ca.ibone.comcast.net (68.86.84.14) 12.228 ms 8 96-87-8-2-static.hfc.comcastbusiness.net (96.87.8.2) 10.769 ms 10.888 ms 10.780 ms 9 sjo-b21-link.telia.net (80.91.253.3) 19.066 ms sjo-b21-link.telia.net (62.115.125.9) 11.392 ms sjo-b21-link.telia.net (80.91.253.1) 13.089 ms 10 yahoo-ic-319093-sjo-b21.c.telia.net (213.248.89.47) 10.568 ms 11.054 ms 10.771 ms 11 UNKNOWN-216-115-101-X.yahoo.com (216.115.101.225) 12.189 ms 11.658 ms 11.781 ms 12 routerer-ext.ysv.freebsd.org (8.8.178.93) 11.371 ms 12.583 ms 14.374 ms 13 mailhub.freebsd.org (8.8.178.109) 11.380 ms 13.064 ms 11.590 ms This route also seems to work reliably: root@admin.rbsd:/home/peter # tcptraceroute mx1 25 Selected device vlan106, address 209.170.140.68, port 35141 for outgoing packets Tracing the path to mx1 (8.8.178.115) on TCP port 25 (smtp), 30 hops max 1 igw1.rbsd.freebsd.org (209.170.140.67) 0.144 ms 0.111 ms 0.114 ms 2 static-209-170-140-57.alwaysdedicated.net (209.170.140.57) 0.988 ms 1.044 ms 2.976 ms 3 static-209-170-140-13.alwaysdedicated.net (209.170.140.13) 0.465 ms 0.363 ms 0.462 ms 4 ge3-5.br01.sjo01.pccwbtn.net (63.218.7.125) 1.703 ms 1.725 ms 1.690 ms 5 PAT1.SJC.yahoo.com (206.223.116.16) 1.060 ms 1.080 ms 1.042 ms 6 UNKNOWN-216-115-101-X.yahoo.com (216.115.101.227) 1.543 ms 1.562 ms 1.518 ms 7 routerer-ext.ysv.freebsd.org (8.8.178.93) 1.643 ms 1.760 ms 1.761 ms 8 mx1.freebsd.org (8.8.178.115) [open] 1.758 ms 1.899 ms 1.867 ms The only thing in common in the not-working cases that I can see is the y! backbone and/or the y! <-> nyiix/nyi.net interconnect.. The upstream at nyi works to other destinations, just not y!. Also, curiously, the list of ports that don't work seems to change over time. While I was testing one port combination, it started working. Other known-bad ones stayed broken. Update: only ny->sunnyvale packets go missing. I see the NY initiated syn disappear. When I send a syn from sunnyvale, it makes it all the way, but the syn-ack doesn't make it back. It appears to make it this far only: 8 ae5.cs1.den5.us.eth.zayo.com (64.125.29.19) 67.286 ms 67.077 ms 82.377 ms 9 ae6.cs1.sjc2.us.eth.zayo.com (64.125.31.219) 66.988 ms 67.061 ms 67.080 ms 10 ae27.cr1.sjc2.us.zip.zayo.com (64.125.30.231) 66.531 ms 66.496 ms 66.506 ms 11 ae16.mpr3.sjc7.us.zip.zayo.com (64.125.31.13) 66.978 ms 67.011 ms 67.024 ms 12 * * * 13 * * * 14 * * * 15 * * * vs working: 8 ae5.cs1.den5.us.eth.zayo.com (64.125.29.19) 67.044 ms 67.124 ms 77.995 ms 9 ae6.cs1.sjc2.us.eth.zayo.com (64.125.31.219) 67.073 ms 67.142 ms 94.775 ms 10 ae27.cr1.sjc2.us.zip.zayo.com (64.125.30.231) 67.390 ms 66.624 ms 66.497 ms 11 ae16.mpr3.sjc7.us.zip.zayo.com (64.125.31.13) 67.067 ms 67.110 ms 67.392 ms 12 PAT1.SJC.yahoo.com (206.223.116.16) 78.385 ms 78.390 ms 78.395 ms 13 UNKNOWN-216-115-101-X.yahoo.com (216.115.101.227) 78.844 ms 78.906 ms 78.966 ms 14 routerer-ext.ysv.freebsd.org (8.8.178.93) 78.553 ms 78.356 ms 78.573 ms Note the big 10ms increase between sjc7.zayo.com and pat1.scj.yahoo.com.