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Article #301_extreme_ packet loss!!!
From: George Sanderson
Date: Fri, 22 Mar 1996 00:00
Date: Fri, 22 Mar 1996 00:00
66 lines
2674 bytes
2674 bytes
here's some alarming ping statistics, done at about 2 pm, 22-Mar-96. About 100 packets were transmitted before each ping was aborted. ping to ftp.netnet.net: ----laslo.netnet.net PING Statistics---- 103 packets transmitted, 67 packets received, 34% packet loss round-trip (ms) min/avg/max = 284/354/799 ping to barton.spring.com: ----barton.spring.com PING Statistics---- 106 packets transmitted, 61 packets received, 42% packet loss round-trip (ms) min/avg/max = 396/481/1167 ping to ftp.wustl.edu: ----wuarchive.wustl.edu PING Statistics---- 111 packets transmitted, 59 packets received, 46% packet loss round-trip (ms) min/avg/max = 286/364/808 ping to ftp.luth.se: ----ftp.luth.se PING Statistics---- 131 packets transmitted, 90 packets received, 31% packet loss round-trip (ms) min/avg/max = 470/555/1195 ping to ftp.cdrom.com: (note: this site has a T3 connection) ----wcarchive.cdrom.com PING Statistics---- 108 packets transmitted, 70 packets received, 35% packet loss round-trip (ms) min/avg/max = 243/308/988 So, at least a third to about half the packets to/from outside .au are lost, and the average response is significantly more than 300 ms. So where's most of the packet loss occuring ??? Here's a traceroute to ftp.cdrom.com: traceroute to wcarchive.cdrom.com (165.113.58.253), 30 hops max, 40 byte packets 1 gu.gw.au (203.2.138.209) 2 ms 2 ms 2 ms 2 telstra.gw.gu.edu.au (132.234.237.1) 3 ms 3 ms 3 ms 3 qld-tmp.gw.au (139.130.252.1) 6 ms 5 ms 6 ms 4 national-qld.gw.au (139.130.48.1) 86 ms 94 ms 101 ms 5 vic.gw.au (139.130.239.53) 81 ms * 101 ms 6 Fddi0-0.lon-core2.Melbourne.telstra.net (139.130.239.227) 98 ms 100 ms 85 ms 7 Serial4-5.pad-core2.Sydney.telstra.net (139.130.249.61) 92 ms 101 ms 128 ms 8 * national-new.gw.au (139.130.249.228) 114 ms 77 ms 9 border4-hssi1-0.SanFrancisco.mci.net (204.70.35.5) 260 ms 268 ms 281 ms 10 borderx2-fddi0-0.SanFrancisco.mci.net (204.70.3.164) 288 ms * * 11 fix-west-nap.SanFrancisco.mci.net (204.70.158.118) 276 ms 279 ms * 12 * * * 13 T3-CRL-SFO-01-H3/0.US.CRL.NET (149.20.64.19) 606 ms 304 ms * 14 * wcarchive.cdrom.com (165.113.58.253) 1158 ms *
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 107651,4c119e6ddb6b8463,start X-Google-Attributes: gid107651,public From: aissande@kraken.itc.gu.edu.au (George Sanderson) Subject: _extreme_ packet loss!!! Date: 1996/03/22 Message-ID: <4ita0m$m35@griffin.itc.gu.edu.au> X-Deja-AN: 143630024 organization: Groom Lake Testing Facility newsgroups: aus.net.status