Ok, Faidon poked at it: confirmed that one of the routes coming back from our servers to the hotel network was highly congested and switched priorities to the non-congested route.

Much, much improved. :)

Details at https://phabricator.wikimedia.org/T105984#1457294

-- brion

On Wed, Jul 15, 2015 at 8:50 PM, Brion Vibber <bvibber@wikimedia.org> wrote:
On Wed, Jul 15, 2015 at 8:32 PM, Manuel Schneider <manuel.schneider@wikimedia.ch> wrote:
Hi Brion,

such issues may be based on routing, depending of the peerings between
the Hilton ISP and Wikimedia. One would need to check both ASes and use
the respective looking glasses (does Wikimedia have one?) to check the
routes.
Many routes are also assymmetrical, so up- and downlink can vary.

*nod*

Filed in phab and attached some traceroute info from my end: https://phabricator.wikimedia.org/T105984

-- brion


/Manuel

Am 16.07.2015 um 02:45 schrieb Brion Vibber:
> I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on
> the order of 20-30 kbytes/sec, whereas I get a very respectable 500
> kbytes/sec to everywhere else.

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