Another note: Seeing > 50% packet loss with 605 byte packets or larger. Anything 604 or under and there's zero packet loss. With or without df-bit set. GG On Wed, Aug 19, 2009 at 2:40 PM, Gary T. Giesen<giesen@snickers.org> wrote:
Seeing issues with Alter.net in Seattle to a Qwest DSL customer in Portland (and looks like a possible routing loop as well) from Calgary:
traceroute 63.227.218.201
Type escape sequence to abort. Tracing the route to 63.227.218.201
1 gw-V4051.bb101-2420-1.cgy.akn.ca (209.90.250.33) 0 msec 0 msec 0 msec 2 maxtnt01-sdf-463.fast.net (204.92.61.209) 0 msec 0 msec 0 msec 3 125.at-6-0-0.XT2.CAL1.ALTER.NET (152.63.138.122) 0 msec 0 msec 0 msec 4 POS5-0.BR1.SEA1.ALTER.NET (152.63.105.85) 224 msec 212 msec 200 msec 5 POS5-0.BR1.SEA1.ALTER.NET (152.63.105.85) 188 msec 184 msec 192 msec 6 204.255.169.30 (204.255.169.30) 192 msec 192 msec 196 msec 7 sea-core-02.inet.qwest.net (205.171.26.85) 200 msec 204 msec 204 msec 8 por-core-01.inet.qwest.net (67.14.1.237) 208 msec 212 msec 224 msec 9 ptld-agw1.inet.qwest.net (205.171.130.26) 240 msec 232 msec 236 msec 10 ptld-dsl-gw34-10.ptld.qwest.net (207.225.86.10) 236 msec 244 msec 236 msec 11 x.x.x.x (x.x.x.x) 296 msec * 252 msec
Seeing pings jump from 0 ms to 200+ ms at hop 4 (which also appears as hop 5), and is definitely *not* explained by geographical distance.
Traceroute from my Toronto POP are fine:
traceroute 63.227.218.201 traceroute to 63.227.218.201 (63.227.218.201), 30 hops max, 60 byte packets 1 ge0-1.cyan.akn.ca (66.135.102.132) 1.506 ms 1.498 ms 1.482 ms 2 ge-0-0-3.V4022.smalt.akn.ca (66.135.108.85) 2.198 ms 2.193 ms 2.180 ms 3 te3-5.1244.ccr02.yyz02.atlas.cogentco.com (38.112.93.49) 1.640 ms 1.634 ms 1.624 ms 4 te3-2.ccr01.ord01.atlas.cogentco.com (66.28.4.213) 16.861 ms 16.884 ms te9-8.ccr01.ord01.atlas.cogentco.com (154.54.27.241) 16.890 ms 5 154.54.29.18 (154.54.29.18) 17.594 ms 17.594 ms 17.582 ms 6 qwest.ord03.atlas.cogentco.com (154.54.10.186) 17.001 ms 16.384 ms qwest.ord03.atlas.cogentco.com (154.54.12.106) 16.435 ms 7 cer-core-01.inet.qwest.net (205.171.139.113) 16.480 ms 16.795 ms 16.802 ms 8 por-core-01.inet.qwest.net (67.14.1.237) 72.435 ms 72.472 ms 72.448 ms 9 ptld-agw1.inet.qwest.net (205.171.130.26) 72.502 ms 72.473 ms 72.473 ms 10 ptld-dsl-gw34-10.ptld.qwest.net (207.225.86.10) 72.985 ms 72.958 ms 72.626 ms 11 x.x.x.x (x.x.x.x) 134.030 ms * *
Anyone else seeing the same thing?
GG