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

[Joel Rosenblatt]

To us, it looks like it's somewhere upstream from Cogent

Joel

--On Thursday, May 14, 2009 3:42 PM +0000 Chris Morrow <morrowc at ops-netman.net> wrote:

> from which to which ips's?
>
> (working from home but watching email)
>
> -chris
>
> On Thu, 14 May 2009, Joel Rosenblatt wrote:
>
>> ----------- nsp-security Confidential --------
>>
>> 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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>> _______________________________________________
>>
>



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