[170721] in North American Network Operators' Group

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Re: Recommendation on NTP appliances/devices

daemon@ATHENA.MIT.EDU (Saku Ytti)
Fri Apr 4 09:25:26 2014

Date: Fri, 4 Apr 2014 16:24:57 +0300
From: Saku Ytti <saku@ytti.fi>
To: "nanog@nanog.org" <nanog@nanog.org>
In-Reply-To: <533EADA1.9060001@studio442.com.au>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


> So what, that sends IP packets, are you using to *measure* it. I can

Agilent if we need unidir. Normal run-of-the-mill 10GE SP router will give you
low single digit microsecond jitter when not congested. (You can run 99.99% no
problem, as long as you don't try >100% (i.e. >1 interface sending)).

We only do bidir for constant measurements of network, unidir is unfortunately
only for troubleshooting case-by-case.
It would be very nice to always have unidir view to the network, but
cost/benefit is not there if you have lot of pops.

-- 
  ++ytti


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