Reaching Google through Cogent

Rick Kunkel kunkel at w-link.net
Mon Apr 17 17:47:46 UTC 2006


This is what I'm seeing....

(Note:  We aren't actually a Cogent customer, but it looks as if this
upstream uses them for one of THEIR upstreams... I know they have
several...)

# traceroute www.google.com
traceroute: Warning: www.google.com has multiple addresses; using 
64.233.179.99
traceroute to www.l.google.com (64.233.179.99), 30 hops max, 38 byte 
packets
 1  7206-ge-0-1-10 (207.244.153.1)  1.840 ms  0.258 ms  0.652 ms
 2  208.99.192.133 (208.99.192.133)  2.312 ms  1.822 ms  1.702 ms
 3  204.8.32.85 (204.8.32.85)  1.702 ms  2.318 ms  1.273 ms
 4  38.112.26.185 (38.112.26.185)  2.356 ms  2.318 ms  2.350 ms
 5  g3-8.core01.sea01.atlas.cogentco.com (66.250.15.137)  2.218 ms  2.083 
ms  2.955 ms
 6  p14-0.core01.sfo01.atlas.cogentco.com (66.28.4.54)  32.661 ms  32.820 
ms  32.382 ms
 7  p15-0.core01.sfo01.atlas.cogentco.com (66.28.4.69)  32.386 ms  32.870 
ms  33.349 ms
 8  p4-0.core01.sjc01.atlas.cogentco.com (66.28.4.94)  32.823 ms  32.072 
ms  32.652 ms
 9  g12-0-0.core01.sjc03.atlas.cogentco.com (154.54.2.238)  31.998 ms  
31.737 ms  32.092 ms
10  google.sjc03.atlas.cogentco.com (154.54.10.254)  22.814 ms  22.389 ms  
21.870 ms
11  66.249.94.2 (66.249.94.2)  23.564 ms  23.119 ms  23.220 ms
12  * * *


It peters out after that.  That last hop IS Google though...  I wonder if
it could be a routing issue where that traffic can't find their way back
to me...(?)  I have an InterNAP connection as well, and things are working
fine if they pass through there.

Thanks,

Rick

On Mon, 17 Apr 2006, Tuc at T-B-O-H wrote:

> > 
> > 
> > Is anyone else having problems reaching Google through Cogent's network 
> > right now?
> > 
>         What signs are you seeing? Can you show pings/traceroutes/mtr/etc.
> 
>                 Thanks, Tuc/TBOH
> 
> 





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