perfSONAR User Q&A and Other Discussion

[Michael Sinatra <>]

On 05/23/2013 11:44, Jason Zurawski wrote:
> Hey Peter;
>
> I would nuke the ESnet server too - NTP works best when the servers are 
> within the same timezone/continent, it gives the algorithms a level playing 
> field to choose from.

It's not really the case that a server outside of the timezone or 
continent matters.  The key is whether it's more likely than not that 
there will be asymmetry in the path to/from a given NTP server.  I don't 
really see much evidence of that with any of the servers in the list, 
except for possibly ntp.mtnbusiness....


> A related note is that we are always looking to add new servers into our list 
> around the world - if you know of 'open' clocks in the region that we can 
> front-load into the list, that can be arranged.

Well, there's a published list of them here:

http://support.ntp.org/bin/view/Servers/WebHome

:)

michael