ALTER.NET Issues in Seattle

Wed Aug 19 18:40:49 UTC 2009

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