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| -rw-r--r-- | systemenvironments.tex | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/systemenvironments.tex b/systemenvironments.tex index 1267c0d..14e656f 100644 --- a/systemenvironments.tex +++ b/systemenvironments.tex @@ -146,13 +146,18 @@ synchronised to the clock time which is being transmitted by the multiplex to which it has been tuned. The system needs to run a NTP client that synchronises the system time over the -network. Correct synchronisation can be checked using the \texttt{lpeers} -command of the \texttt{ntpq} tool. The magnitude of the offset should be below -$10$\ms. +network. Correct synchronisation can be checked using \texttt{chronyc tracking} +or the the \texttt{lpeers} command of the \texttt{ntpq} tool, depending on if +you use chrony or openntp. +The magnitude of the offset should be below $10$\ms. The performance of the NTP synchronisation should also be monitored permanently during operation. +ODR-DabMux can run a command at startup to verify if the NTP client is properly +working, using the \texttt{startupcheck} setting. This can be used to call +\texttt{ntp-wait} or \texttt{chronyc waitsync} to wait for proper NTP sync. + \subsection{Monitoring through SNMP} There is ongoing work to make the monitoring of the tools possible using SNMP. Please see \url{https://wiki.opendigitalradio.org/SNMP} for information about |