nanog mailing list archives

Re: Learning about the internet


From: Brian Loveland <brian () aereo com>
Date: Mon, 3 Nov 2014 17:33:09 -0500

Isn't this most likely a side effect of MPLS tunneling and the 93ms jump
there is actually the trans-atlantic segment?  All the european hops
following it are very close in latency to hop 11.

On Mon, Nov 3, 2014 at 5:14 PM, William Herrin <bill () herrin us> wrote:

On Mon, Nov 3, 2014 at 4:15 PM, Paige Thompson <paigeadele () gmail com>
wrote:
I
would be able to find an answer as to why the latency between here in
greece and Los Angeles is roughly ~250ms.

10.|-- be2171.mpd22.dca01.atlas.cogentco.com  0.0%    10   62.6  62.7
 62.4  63.3   0.0
11.|-- be2112.ccr41.iad02.atlas.cogentco.com  0.0%    10  155.5 155.8
155.5 156.1   0.0

^^ There's the largest part part of your answer. IAD and DCA are both
Northern VA airports; there should be perhaps 4ms of latency between these
locations.


--
William Herrin ................ herrin () dirtside com  bill () herrin us
Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
May I solve your unusual networking challenges?



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