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07-15-2013 01:45 AM - last edited on 07-15-2013 02:19 AM by JinJing1
07-15-2013 01:45 AM - last edited on 07-15-2013 02:19 AM by JinJing1
How to increase the NTP Server Init time & the client registration time with Server
Hi,
I need your expert opinion on how can i reduce the time a client takes to select a server as a Valid server (sys.peer)
I am implementing a NTP solution for a LAN of 200 sytems which will contain 5 NTP servers (LOCAL) and all other NTP clients. I am concern about to keep the time inside LAN perfectly same.
I am able to do it using the LOCAL NTP Server. But whenever i boot up the NTP server and tries a client to get connected to it, it take more than 3 mins to get the time. Yeah, NTP algorithm takes that much time, but is there any way i can reduce it further, as i am using local area network there wont be any congession problem.
The ntpq output i get is as mentioned below,
a)Just after server boot up and run ntpq at client
Prompt>ntpq.exe -p
remote refid st t when poll reach delay offset jitter ==============================================================================
Server 1 LOCAL<0> 11 u 12 16 17 1.162 -2.466 0.977
b)Till three min if i run "as" cmd at client, i get
Prompt> ntpq.exe as
ind assID status conf reach auth condition last_event cnt
===========================================================
1 52163 9024 yes yes none reject reachable 2
[Why it shows reject??]
c) After 3 mins
Prompt> ntpq.exe as
ind assID status conf reach auth condition last_event cnt ===========================================================
1 52163 963a yes yes none sys.peer reachable 3
P.S. This thread has been moved from HP-UX > System Administration > to HP-UX > networking. -HP Forum Moderator
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07-15-2013 12:24 PM
07-15-2013 12:24 PM
Re: How to increase the NTP Server Init time & the client registration time with Server
If you have a new enough version of ntpd, you can use the "iburst" option on the server line(s) of your ntp.conf file.
That will speed up the initial synchronization.