Hi Yair, Run mtr to see exactly where your packet loss is. Try variating the packet size. Make sure you send a significant amount of packets to make sure your tests are accurate.
-- - Josh
On Thu, 3 Feb 2005, Yair Hakak wrote:
Hello Linux Israel, Since i saw some discussion of routing issues a while ago i am posting to this list. If there is somewhere else more appropriate please tell me where to post this:
i am having trouble reaching my one of my linux boxes in a US hosting center from Israel...slow transit times from 015, pings time out from bezeqint, and other such weirdness. The really strange part is that i have 2 servers in the same datacenter and the routes are very different...
a tracert to one of my servers from 012 (at http://dig.012.net.il/cgi-bin/dig.pl) yields
1 212.199.212.18 (212.199.212.18) 0.354 ms 0.237 ms 0.184 ms 2 80.179.229.1.static.012.net.il (80.179.229.1) 0.426 ms 0.255 ms 0.219 ms 3 212.199.28.201 (212.199.28.201) 0.803 ms 0.776 ms 0.836 ms 4 212.199.28.70 (212.199.28.70) 0.863 ms 0.826 ms 0.746 ms 5 pal5-goldenlines-4-il.pal.seabone.net (195.22.197.17) 31.903 ms 31.572 ms 31.401 ms 6 mil14-mil7-racc1.mil.seabone.net (195.22.208.223) 53.054 ms 52.596 ms 52.253 ms 7 sl-gw10-mil-10-0.sprintlink.net (217.147.129.105) 81.406 ms 81.190 ms 81.560 ms 8 sl-bb21-mil-8-0.sprintlink.net (217.147.128.42) 81.525 ms 81.231 ms 81.484 ms 9 sl-bb20-mil-15-0.sprintlink.net (217.147.128.33) 95.935 ms 81.560 ms 81.609 ms 10 sl-bb21-par-12-0.sprintlink.net (213.206.129.25) 80.863 ms 81.258 ms 80.808 ms 11 sl-bb20-par-15-0.sprintlink.net (217.118.224.33) 82.287 ms 80.853 ms 81.094 ms 12 sl-bb23-nyc-14-0.sprintlink.net (144.232.20.45) 148.830 ms 148.483 ms 152.584 ms 13 sl-bb20-nyc-8-0.sprintlink.net (144.232.7.13) 169.653 ms 212.559 ms 273.379 ms 14 144.232.8.74 (144.232.8.74) 148.796 ms 148.314 ms 148.615 ms 15 12.123.3.110 (12.123.3.110) 148.890 ms 148.787 ms 148.848 ms 16 tbr2-cl1.wswdc.ip.att.net (12.122.10.54) 156.428 ms 156.799 ms 156.582 ms 17 tbr1-cl1.attga.ip.att.net (12.122.10.70) 170.101 ms 170.251 ms 170.312 ms 18 gbr4-p50.ormfl.ip.att.net (12.122.2.130) 177.322 ms 177.513 ms 177.682 ms 19 gar1-p360.miufl.ip.att.net (12.123.200.237) 185.588 ms 185.645 ms 185.428 ms 20 mailbox.rossindinc.com (12.118.175.42) 184.245 ms 184.123 ms 183.881 ms 21 66.132.255.22 (66.132.255.22) 184.248 ms 184.166 ms 183.986 ms 22 209.213.123.181 (209.213.123.181) 184.348 ms 184.281 ms 184.325 ms
what is especially strange is hop 20 - a mailserver for a meatpacking company.
the other server is 1 212.199.212.18 (212.199.212.18) 0.592 ms 0.218 ms 0.186 ms 2 80.179.229.1.static.012.net.il (80.179.229.1) 0.280 ms 0.253 ms 0.239 ms 3 sa-pt-212.199.26.181.012.net.il (212.199.26.181) 0.352 ms 0.211 ms 0.238 ms 4 pos3-1.ar03.ldn01.pccwbtn.net (63.218.13.61) 75.396 ms 77.655 ms 75.440 ms 5 pos3-0.cr01.ash01.pccwbtn.net (63.216.0.122) 150.502 ms 150.453 ms 149.970 ms 6 washdc5lcx1-pos4-3-peer.wcg.net (64.200.89.97) 149.013 ms 148.924 ms 148.933 ms 7 hrndva1wcx2-pos15-1.wcg.net (64.200.89.93) 151.047 ms 151.101 ms 228.679 ms 8 drvlga1wcx2-pos3-0-oc192.wcg.net (64.200.210.237) 164.450 ms 164.681 ms 164.590 ms 9 drvlga1wcx1-oc48.wcg.net (64.200.127.29) 164.480 ms 164.052 ms 163.833 ms 10 miamfl2wcx3-pos11-0-oc48.wcg.net (64.200.240.17) 174.133 ms 174.224 ms 174.453 ms 11 miamfl6lcx1-pos9-0.wcg.net (64.200.119.106) 174.569 ms 174.517 ms 174.836 ms 12 Miami-NOTA-TWC1114543-GE.wcg.net (64.200.118.242) 180.381 ms 180.572 ms 180.190 ms 13 66.132.255.22 (66.132.255.22) 180.290 ms 180.443 ms 180.294 ms 14 sm.mightytel.com (64.239.45.66) 180.311 ms 180.549 ms 180.747 ms
note that both of them hit 66.132.255.22, which is why i don't understand why the routes are so different. I can get to my second server from everywhere in israel no problem, but the first one is both slow and intermittent.
If anyone has any ideas or who to ask about this i would appreciate it.
thanks, yair
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