[ntp:questions] broadcast client
rochertov at gmail.com
rochertov at gmail.com
Thu Sep 25 22:59:31 UTC 2008
Hello,
I have a question regarding broadcast mode. I have 6 machines
synchronizing with the same ntp server. That server uses uses a local
ntp displined clock (we are looking into a GPS one). The machines are
connected via 1 Gbps switch. The network is lightly loaded and I
configured the clients as such
server ntp minpoll 4 maxpoll 4 iburst
Howerver, I notice that two clients have a relatively large offset
from the ntp server (greater than 100 micro-seconds according to "ntpq
-p"). I considered setting the server into broadcast mode and
enabling broadcastclient on the clients to avoid 6 machines polling
the same server every 16 seconds. I have two questions regarding
this. What is the syntax for setting the frequency of broadcasts on
the server? Also, how can I check the approximate time offset between
the clients and the server? Should I then peer each client with the
ntp server and rely on broadcast messages for time synchronization?
Thanks
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