> From SLAC... > > ibra3> /usr/sbin/traceroute www.cern.ch > traceroute to webr2.cern.ch (137.138.28.230), 30 hops max, 38 byte packets > 1 rtr-core1-pub1 (134.79.131.2) 0.398 ms 0.334 ms 0.366 ms > 2 rtr-dmz1-ger (134.79.135.15) 0.362 ms 0.354 ms 0.461 ms > 3 slac-rt4.es.net (192.68.191.146) 0.403 ms 0.389 ms 0.445 ms > 4 snv-pos-slac.es.net (134.55.209.1) 0.810 ms 0.802 ms 0.751 ms > 5 chicr1-oc192-snvcr1.es.net (134.55.209.54) 49.051 ms 49.071 ms 48.960 ms > 6 chirt1-ge0-chicr1.es.net (134.55.209.190) 49.192 ms 49.041 ms 49.002 ms > 7 ar3-chicago-esnet-vlan.cern.ch (198.125.140.90) 49.212 ms 49.075 ms 49.261 ms > 8 cernh4-stm4.cern.ch (192.65.184.26) 257.942 ms 258.147 ms 257.979 ms > 9 cernh2.cern.ch (192.65.185.2) 258.628 ms 258.373 ms 258.103 ms > 10 webr2.cern.ch (137.138.28.230) 258.141 ms 257.978 ms 258.085 ms > 11 webr2.cern.ch (137.138.28.230) 258.489 ms 258.100 ms 258.192 ms > 12 webr2.cern.ch (137.138.28.230) 258.368 ms 258.596 ms 258.216 ms > 13 webr2.cern.ch (137.138.28.230) 258.405 ms 258.382 ms 258.207 ms > > From home... > > l[pfkeb@kunz-pbdsl1 qt]$ /usr/sbin/traceroute www.cern.ch > traceroute to webr2.cern.ch (137.138.28.230), 30 hops max, 38 byte packets > 1 Kunz-pbdsl.Stanford.EDU (171.66.221.153) 0.355 ms 0.304 ms 0.234 ms > 2 172.22.110.205 (172.22.110.205) 10.184 ms 8.479 ms 20.803 ms > 3 forsythemr-gateway.Stanford.EDU (171.64.6.65) 8.562 ms 18.302 ms 10.057ms > 4 bbr1-rtr.Stanford.EDU (171.64.1.52) 27.680 ms 19.460 ms 9.851 ms > 5 198.31.86.17 (198.31.86.17) 10.507 ms 20.247 ms 11.607 ms > 6 SUNet72-Gateway.Stanford.EDU (171.64.1.65) 24.975 ms 19.160 ms 19.673 ms > 7 paix-gateway.Stanford.EDU (171.64.0.230) 28.566 ms 20.662 ms 19.544 ms > 8 paix-gw1.usa.net.dtag.de (198.32.176.51) 27.048 ms 18.375 ms 8.849 ms > 9 CIXP-gw20.GVA.CH.net.DTAG.DE (62.154.5.122) 170.242 ms 167.896 ms1 70.086 ms > 10 62.156.138.105 (62.156.138.105) 229.227 ms 219.830 ms 230.647 ms > 11 cernh2.cern.ch (192.65.185.2) 218.379 ms 218.676 ms 219.656 ms > 12 webr2.cern.ch (137.138.28.230) 221.380 ms 221.008 ms 227.912 ms > 13 webr2.cern.ch (137.138.28.230) 219.469 ms 219.736 ms 219.760 ms > 14 webr2.cern.ch (137.138.28.230) 220.150 ms 219.701 ms 219.940 ms > 15 webr2.cern.ch (137.138.28.230) 230.094 ms 220.024 ms 221.473 ms > > As you see, its the trans-atlantic line that's the difference.