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Re: Asymmetry or others?
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From: <ch...@po...> - 2003-01-24 01:04:42
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Thanks Joe and Kevin. I am using the updated iperf1.6.3 on window size. I tried many times and found out that although the throughput varies at different time, there are always the differneces between the two directions, e.g, both throughput can goes down to 2M and 5Mbps at 4:00PM (rush hour?) I am not sure if it's normal that one direction is ALWAYS busy than the other. And the following is my traceroute from two sites: ----- traceroute to 129.128.48.51 (129.128.48.51), 30 hops max, 38 byte packets 1 gateway3.finearts.uvic.ca (142.104.26.252) 0.906 ms 0.903 ms 1.040 ms 2 142.104.252.62 (142.104.252.62) 0.910 ms 0.722 ms 0.920 ms 3 policy1-ptp-uvica.BC.net (207.23.240.53) 5.030 ms 4.428 ms 4.434 ms 4 gigapop-vlan2.hc.BC.net (207.23.240.229) 4.328 ms 4.628 ms 5.063 ms 5 c4-van01.canet4.net (205.189.32.194) 5.222 ms 5.395 ms 4.627 ms 6 c4-netera-cal.canet4.net (205.189.32.125) 22.051 ms 22.021 ms 22.143 ms 7 gsb175-c6509-1-canet.backbone.ualberta.ca (129.128.153.201) 21.562 ms 22.728 ms 21.637 ms 8 mece-c5000-3-138.backbone.ualberta.ca (129.128.3.138) 22.255 ms 22.198 ms 22.029 ms 9 129.128.48.51 (129.128.48.51) 21.515 ms 22.134 ms 21.799 ms ------ traceroute to finearts.uvic.ca (142.104.26.1), 30 hops max, 38 byte packets 1 129.128.48.1 (129.128.48.1) 0.905 ms 0.389 ms 0.385 ms 2 gsb175-c6509-3-137.backbone.ualberta.ca (129.128.3.137) 0.581 ms 0.401 ms 0.355 ms 3 gsb175-netera-gsr-uofa.backbone.ualberta.ca (129.128.153.202) 0.548 ms 0.296 ms 0.245 ms 4 205.189.32.126 (205.189.32.126) 17.771 ms 17.511 ms 17.500 ms 5 c4-bcnet.canet4.net (205.189.32.193) 17.741 ms 17.488 ms 17.642 ms 6 policy1-ORAN.vantx.BC.net (207.23.240.178) 17.901 ms 17.607 ms 17.677 ms 7 uvica-ptp-policy1.BC.net (207.23.240.54) 21.615 ms 21.558 ms 21.402 ms 8 142.104.252.3 (142.104.252.3) 22.101 ms 22.002 ms 22.187 ms 9 khan.finearts.UVic.CA (142.104.26.1) 22.929 ms 22.209 ms 22.505 ms ---- I can't see big asymmetric like UO-UW, am i right? Thanks, -Chong |