In Oxford, a.t.m. the ping to the usual UK Sage mirror in 5ms from the 
university network; faster than usual.

On Sunday, December 3, 2017 at 5:05:05 PM UTC, Eric Gourgoulhon wrote:
>
>
> Le dimanche 3 décembre 2017 16:17:29 UTC+1, Ralf Stephan a écrit :
>>
>> What could be the reason that for me the mirror search shows >5s ping for 
>> many mirrors, also for switch.ch which is always 20ms from here (and a 
>> manual ping confirms this)?
>>
>>
> Maybe it's some issue with your internet access. Here is what I get from 
> here (Paris):
>
> [patch-2.7.5] Searching fastest mirror
> [patch-2.7.5]   277ms: http://files.sagemath.org/
> [patch-2.7.5]   409ms: http://ftp.iitm.ac.in/sage/
> [patch-2.7.5]  1126ms: http://ftp.kaist.ac.kr/sage/
> [patch-2.7.5]   511ms: http://ftp.leg.uct.ac.za/pub/packages/sage/
> [patch-2.7.5]   480ms: http://ftp.ntua.gr/pub/sagemath/
> [patch-2.7.5]   951ms: http://ftp.riken.jp/sagemath/
> [patch-2.7.5]   926ms: http://ftp.tsukuba.wide.ad.jp/software/sage/
> [patch-2.7.5]   711ms: http://ftp.yz.yamagata-u.ac.jp/pub/math/sage/
> [patch-2.7.5]   921ms: http://linorg.usp.br/sage/
> [patch-2.7.5]   716ms: http://mirror.aarnet.edu.au/pub/sage/
> [patch-2.7.5]  1127ms: http://mirror.hust.edu.cn/sagemath/
> [patch-2.7.5]   242ms: http://mirror.switch.ch/mirror/sagemath/
> [patch-2.7.5]   676ms: http://mirror.ufs.ac.za/sagemath/
> [patch-2.7.5]   122ms: 
> http://mirror.yandex.ru/mirrors/sage.math.washington.edu/
> [patch-2.7.5]   286ms: http://mirrors-usa.go-parts.com/sage/sagemath/
> [patch-2.7.5]   151ms: http://mirrors.mit.edu/sage/
> [patch-2.7.5]  2101ms: http://mirrors.tuna.tsinghua.edu.cn/sagemath/
> [patch-2.7.5]  1535ms: http://mirrors.ustc.edu.cn/sagemath/
> [patch-2.7.5]   410ms: http://mirrors.xmission.com/sage/
> [patch-2.7.5]   268ms: http://sage.mirror.garr.it/mirrors/sage/
> [patch-2.7.5]  1061ms: http://sagemath.c3sl.ufpr.br/
> [patch-2.7.5]   613ms: http://sagemath.mirror.ac.za/
> [patch-2.7.5]   128ms: http://www-ftp.lip6.fr/pub/math/sagemath/
> [patch-2.7.5]   894ms: http://www.cecm.sfu.ca/sage/
> [patch-2.7.5]   107ms: 
> http://www.mirrorservice.org/sites/www.sagemath.org/
> [patch-2.7.5]   133ms: https://mirror.koddos.net/sagemath/
> [patch-2.7.5]   180ms: https://mirrors.up.pt/pub/sage/
> [patch-2.7.5] Fastest mirror: 
> http://www.mirrorservice.org/sites/www.sagemath.org/
>
> and ping mirror.swith.ch yields 35 ms.
>
> Best regards,
>
> Eric.
>
>

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