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Requirements, considerations and procedures associated with this method are described
in detail in
page 354.
Using NTP/SNTP to synchronize the switch to UTC
time
This method applies to certain Avaya switches on which the platform OS (Linux or
Windows 2000) uses either the Network Time Protocol (NTP) or Simple Network Time
Protocol (SNTP) to obtain highly accurate UTC data from an Internet Time Server. The
time on the operating system clock, which is continuously adjusted to match polled UTC
time, also provides the basis for the switch clock time. This synchronization method is
accurate on the order of fractions of a second.
TOD clock synchronization is enabled on the following communication servers when
MultiVantage R11 (or later) or Communication Manager R11.3 (or later) are installed:
IP600
DEFINITY ONE
Avaya S8100 Media Server
Avaya S8300 Media Server
Avaya S8700 Media Server
When a multi-site network includes switches that use this synchronization method, each of
these switches maintains its own separate clock time. However, since all of the switches
that use this method maintain settings based on UTC time, and thus essentially identical,
clock synchronization is still achieved.
For requirements and procedures associated with this form of clock synchronization, see
Administrator Guide for Avaya Communication Manager, 555-233-506.
For more information about NTP/SNTP software, see
Servers
Using Avaya Site Administration to set up a TOD synchronization schedule
on page 365.
Using NTP/SNTP to synchronize the switch to UTC time
About NTP/SNTP and Internet Time
Issue 1.0 May 2003
on
353
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