Help with route latency between TATA and Comcast

Tue Jun 24 18:28:49 UTC 2014

On 6/24/14 10:49 AM, rwebb at ropeguru.com wrote:
> I am doing some testing between my Comcast Business connection and a
> Singapore server that I have just setup. I am seeing high latency to the
> server but it appears it is the Comcast to TATA link and not the link
> between the U.S. and Singapore. At least that is what I can gather from
> the reverse lookup in the traceroute.

given that the latency to hop 9 is basically the same as hop14 you're
looking at mpls...

if the transpacific hop were on top of that you'd see at least another
100 ms added to the rtt between 9 and 11.

it's 9655 miles IAD - SIN over the pole, realistically an actually fiber
paths is likely more than 12000 so you'd expect to see ~more than 150ms
rtt under the best circumstances...

> Can someone please enlighten me as to if I am correct or not?
> 
> Tracing route to 128.199.162.241 over a maximum of 30 hops
> 
>   1    <1 ms    <1 ms    <1 ms  192.168.1.254
>   2     1 ms    <1 ms    <1 ms
> 23-25-112-190-static.hfc.comcastbusiness.net [23.25.xxx.xxx]
>   3    27 ms    22 ms    19 ms  96.178.10.1
>   4    10 ms     9 ms    10 ms
> te-1-3-ur01.shadygrove.va.richmond.comcast.net [68.86.124.241]
>   5    17 ms    17 ms    17 ms
> xe-12-0-1-0-ar02.charlvilleco.va.richmond.comcast.net [68.86.172.17]
>   6    24 ms    24 ms    25 ms
> pos-1-2-0-0-cr01.ashburn.va.ibone.comcast.net [68.86.91.53]
>   7    24 ms    23 ms    23 ms
> pos-0-3-0-0-pe01.ashburn.va.ibone.comcast.net [68.86.86.142]
>   8    20 ms    20 ms    20 ms  66.208.233.38
>   9   268 ms   264 ms   265 ms if-6-8.tcore2.lvw-los-angeles.as6453.net
> [216.6.87.114]
>  10     *        *        *     Request timed out.
>  11   270 ms   255 ms   256 ms if-2-2.tcore1.svw-singapore.as6453.net
> [180.87.12.1]
>  12   270 ms   271 ms   275 ms if-11-2.thar1.svq-singapore.as6453.net
> [180.87.98.37]
>  13   260 ms   258 ms   260 ms  180.87.98.6
>  14   256 ms   256 ms   258 ms  103.253.144.242
>  15   262 ms   258 ms   259 ms  128.199.162.241
> 
> Trace complete.?
> 

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