hi stephan this is the reason why it is important to really really pick carefully your ip-access or ip-transit provider. ip is not a matter of price/mbit as you can see here -
study peering connect, peering policy and peering reality, for the ip carrier of your choice, carefully in all markets, which are important for you. in general it is not unusual that you have ip networks which are focused on routing primary e.G. via usa, amsterdam or scandinavia - depending on where their headquarter is running - if the given names belongs to a category which you want to blacklist is your decision - i don´t want to comment this here... in general it is high likely that smaller national isp´s/carriers or even regional players with an eye and feeling for peering points in the own and neighboring countries came out with a much better performance than big-tier1 - especially if these ones are involved in playing peering politics ... for some more information just search fredys blog on cablecom issues ... bernd spiess i3b/ascus/xpirio/essgroup (AS39912) Von: swinog-boun...@lists.swinog.ch [mailto:swinog-boun...@lists.swinog.ch] Im Auftrag von Gregory Agerba Gesendet: Dienstag, 05. Februar 2013 17:21 An: Stephan Wolf Cc: swi...@swinog.ch Betreff: Re: [swinog] Cablecom Home to London via USA Do you mean UPC is routing Cogent through USA? Basically, UPC doesn't peer with Cogent and have it delivered by their upstreams. This is called hair pinning and it is probably one of the very few major network that has such issue with UPC. Gregory On 5 February 2013 17:11, Stephan Wolf <swinog...@hightowernet.de<mailto:swinog...@hightowernet.de>> wrote: hello, since longer I have seen, that UPC is routing Cablecom Home connetions via US to London: Tracing route to 82.129.64.250 over a maximum of 30 hops 2 46 ms 68 ms 52 ms 77-56-176-1.dclient.hispeed.ch<http://77-56-176-1.dclient.hispeed.ch> [77.56.176.1] 3 58 ms 58 ms 43 ms 217-168-58-101.static.cablecom.ch<http://217-168-58-101.static.cablecom.ch> [217.168.58.101] 4 139 ms 140 ms 145 ms 84.116.211.22 5 149 ms 145 ms 140 ms 84.116.204.225 6 163 ms 171 ms 171 ms fr-par02a-rd1-gi-15-0-0.aorta.net<http://fr-par02a-rd1-gi-15-0-0.aorta.net> [84.116.130.213] 7 147 ms 155 ms 163 ms 84-116-130-61.aorta.net<http://84-116-130-61.aorta.net> [84.116.130.61] 8 167 ms 135 ms 165 ms 84.116.134.66 9 203 ms 233 ms 179 ms te-4-1.car3.Washington1.Level3.net<http://te-4-1.car3.Washington1.Level3.net> [4.79.168.201] 10 147 ms 149 ms 145 ms ae-2-70.edge3.Washington4.Level3.net<http://ae-2-70.edge3.Washington4.Level3.net> [4.69.149.82] 11 152 ms 144 ms 147 ms Cogent-level3-1x10G.washington.Level3.net<http://Cogent-level3-1x10G.washington.Level3.net> [4.68.63.174] 12 158 ms 149 ms 171 ms te0-5-0-2.mpd22.dca01.atlas.cogentco.com<http://te0-5-0-2.mpd22.dca01.atlas.cogentco.com> [154.54.2.41] 13 167 ms 150 ms 143 ms te0-2-0-2.mpd22.jfk02.atlas.cogentco.com<http://te0-2-0-2.mpd22.jfk02.atlas.cogentco.com> [154.54.5.49] 14 243 ms 254 ms 246 ms te0-2-0-2.mpd22.lon13.atlas.cogentco.com<http://te0-2-0-2.mpd22.lon13.atlas.cogentco.com> [154.54.42.54] 15 218 ms 223 ms 237 ms te0-3-0-6.ccr22.lon01.atlas.cogentco.com<http://te0-3-0-6.ccr22.lon01.atlas.cogentco.com> [154.54.74.61] 16 253 ms 240 ms 232 ms te2-1.ccr01.lon18.atlas.cogentco.com<http://te2-1.ccr01.lon18.atlas.cogentco.com> [154.54.61.214] 17 231 ms 246 ms 251 ms 149.14.8.34 18 227 ms 241 ms 230 ms 82.129.64.250 which causes high latencies via all other providers in CH which we have tried out, incl. and swissix, we have much better connections / less latency. also all our ISP's in germany have good connections only UPC lames - that sucks ;-( may someone of cablecom can check this, and contact me offlist ? thanks in advance stephan _______________________________________________ swinog mailing list swinog@lists.swinog.ch<mailto:swinog@lists.swinog.ch> http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
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