nanog mailing list archives

Re: Help with route latency between TATA and Comcast


From: "rwebb () ropeguru com" <rwebb () ropeguru com>
Date: Tue, 24 Jun 2014 14:25:38 -0400


Now that I look at it again, I believe you are correct. This is my first overseas server so I was not really sure what to expect in latency.

It has been one of those days that doing a reverse had not occurred to me to try as suggested by another reply. I am seeing about the same on the reverse so I am good to go.

Robert

On Tue, 24 Jun 2014 11:18:09 -0700
 Matthew Petach <mpetach () netflight com> wrote:
260ms from VA to SG is about right.  I'd suspect
the DNS is wrong in this case, as otherwise
they somehow went from LAX to SG in less
than 10ms--and if they found a way to do that,
I suspect they'd have a *lot* more customers
beating down their doors to get onto that pathway.  :P

Matt



On Tue, Jun 24, 2014 at 10:49 AM, rwebb () ropeguru com <rwebb () 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.

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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