Supervising the Network

7-41
Maintaining the NetWare Server
Managing Network Time Synchronization
unsuccessful or the list is empty, the server attempts to contact an advertising
time source. The default is No.
Advanced. The Advanced category shows and allows you to change less
commonly used time synchronization variables.
Polling Count. This variable determines the number of time packets to
exchange while polling.
Polling Interval. This variable determines how often the server checks to see
if it is still synchronized with network time. All servers in the Directory tree
should use the same value. The interval is specified in seconds, and the
maximum is 31 days. The default is 600.
Short Interval. When a server discovers it is not synchronized with network
time, it starts time synchronization polling at the interval specified by this
variable. After synchronization, the polling interval increases until the server
is using the value specified by the “Polling Interval” variable. The default is
10 seconds.
Synchronization Radius. This variable controls the maximum time
difference (in milliseconds) a server can differ from network time and still be
considered synchronized. Increasing the time allows a greater time difference
between servers. Decreasing the time increases the chance of losing server
synchronization. When the server is polled, if the time difference is greater,
the server is not synchronized. If the time difference is less, the server is
synchronized.
Correction Floor. This variable determines how closely servers attempt to
synchronize their clocks (in milliseconds). This value cannot exceed the
“Synchronization Radius” or synchronization may not be achieved.
Time Adjustment. This variable determines a single time adjustment in
size, date, and time. The format is (+ or -) <hour>:<minute>:<second> at
<month>/<day>/<year> <hour>:<minute>:<second> (A.M. or P.M.). If the
date and time are not specified, time sources default to six polling intervals
or one hour from the current time, whichever is longer. All time sources
synchronizing together adjust their clocks by the specified time at the
specified date and time.
Use this variable sparingly to correct network time-wide errors. Misuse of
the variable can corrupt time synchronization and the order of events on your
network. You cannot use this variable on a second time server. A Reference
Time server ignores the adjustments from primary time servers.