David J Taylor wrote:
On NetBSD-5 with ntpd 4.2.6p5 the default is 64s.
I wonder what expertise they have to select polling for reference
clocks? BTW: Paul has FreeBSD.
I've just added the "minpoll 4 maxpoll 4" back to my ntp.conf
as it could reduce the 30 usec offset blips I get when logs are
rotated.
Agreed.
On my two pool servers I have named internet servers with
"minpoll 8 maxpoll 10 iburst" which gives reasonably fast
recovery from internet outages.
Temperature changes here mean that on pcs that don't have
a PPS source "minpoll 10" just doesn't work and leads to
ntpd stepping the clock.
David
As I have five stratum-1 servers here fed from four GPS receivers, I'm
hopeful that I won't need to reply on Internet servers. The portable PC
I might take out and use Wi-Fi has the standard "minpoll 6 maxpoll 10
iburst" settings.
Don't you link you other PCs to your stratum-1 server? I do, with lines
like:
server 192.168.0.n iburst maxpoll 5 prefer # FreeBSD server
server 192.168.0.n iburst maxpoll 5 # Windows server
server 192.168.0.n iburst maxpoll 5 # Windows server
I only have a single pc with GPS source and some pcs on
lan use that. I also have "tos minsane 3" which means
that the single GPS source isn't enough.
I've also had GPS blacked out along with MSF, for a few
months last year. Previous year and this year there's
not been a problem. From my location it's certainly not
possible to rely on radio signals.
David
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