[nsp-sec] Big packet loss to Google.com

Joel Rosenblatt joel at columbia.edu
Thu May 14 11:31:41 EDT 2009


Hi,

We are seeing big packet loss trying to get to google.com


Anyone else seeing problems?

Thanks,
Joel

Tracing route to google.com [209.85.171.100]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  wat-edge-1-vlan39-2.net.columbia.edu [128.59.39.
1]
  2    <1 ms    <1 ms    <1 ms  cc-core-1-x-wat-edge-1.net.columbia.edu [128.59.
255.109]
  3    <1 ms    <1 ms    <1 ms  nyser32-gw-1-x-cc-core-1.net.columbia.edu [128.5
9.255.6]
  4    <1 ms    <1 ms    <1 ms  te3-4.mpd01.jfk01.atlas.cogentco.com [38.104.188
.249]
  5    <1 ms    <1 ms    <1 ms  te2-1.ccr01.jfk02.atlas.cogentco.com [154.54.1.2
09]
  6    <1 ms    <1 ms    <1 ms  te4-2.mpd01.jfk05.atlas.cogentco.com [154.54.6.5
0]
  7    <1 ms    <1 ms    <1 ms  te2-1.ccr02.jfk05.atlas.cogentco.com [154.54.3.1
05]
  8     *        *        *     Request timed out.
  9     *      293 ms     *     72.14.238.232
 10   290 ms     *        *     72.14.239.93
 11     *      277 ms     *     209.85.242.208
 12     *        *        *     Request timed out.
 13     *        *      282 ms  64.233.174.127
 14     *        *      281 ms  64.233.174.127
 15   284 ms     *      287 ms  209.85.251.125
 16     *        *        *     Request timed out.
 17     *      293 ms     *     cg-in-f100.google.com [209.85.171.100]
 18   280 ms     *      285 ms  cg-in-f100.google.com [209.85.171.100]

Trace complete.

Joel Rosenblatt, Manager Network & Computer Security
Columbia Information Security Office (CISO)
Columbia University, 612 W 115th Street, NY, NY 10025 / 212 854 3033
http://www.columbia.edu/~joel




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