Re: [ntp:questions] Trying to use Dimension 4 time keeper

2013-09-10 Thread David Taylor
On 11/09/2013 02:47, W. eWatson wrote: ... I tried Meinberg for quite some time, but it flops fairly often. As I flops? What are the symptoms? Also, if time is important why not invest in a GPS (35 dolalrs or so) with PPS. It moves many seconds in a short time, say a day or two. How is GP

Re: [ntp:questions] Trying to use Dimension 4 time keeper

2013-09-10 Thread W. eWatson
... I tried Meinberg for quite some time, but it flops fairly often. As I flops? What are the symptoms? Also, if time is important why not invest in a GPS (35 dolalrs or so) with PPS. It moves many seconds in a short time, say a day or two. How is GPS going to help? Does it provide access

Re: [ntp:questions] Sine wave offset patterns

2013-09-10 Thread John Hasler
E-Mail writes: > The only time I've seen anything like that (twice, in 2 different > states), was on a overloaded (grossly over sold bandwidth) cable TV > ISP network, you could watch the latencies (and packet loss) climb, as > kids got out of school, then later as others got home from work; I > wo

Re: [ntp:questions] Sine wave offset patterns

2013-09-10 Thread unruh
On 2013-09-10, E-Mail Sent to this address will be added to the BlackLists wrote: > Jared Watkins wrote: >> I've had a chance to try a few things since I posted this. >> I don't think it's temperature. >> I have plots of that and it's very stable. >> I think it's a combination of network laten

Re: [ntp:questions] Sine wave offset patterns

2013-09-10 Thread E-Mail Sent to this address will be added to the BlackLists
Jared Watkins wrote: > I've had a chance to try a few things since I posted this. > I don't think it's temperature. > I have plots of that and it's very stable. > I think it's a combination of network latency to the > upstream peer combined with varying system jitter. > I plotted the jitter and