Maintenance Manual

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Cisco ICM Enterprise Edition Administrator Guide Release 6.0(0)
Chapter 5 General Administration
ICM Time Synchronization
Step 3 Enter the server name and database for both source and target and click the
Synchronize button.
ICM Time Synchronization
This section describes the components that are involved in to keeping the
time-of-day clocks synchronized across all machines that comprise an ICM
system.
MDS
The Message Delivery Service (MDS) Synchronizer attempts to keep the system
clocks of both sides of a duplexed system synchronized. The enabled
Synchronizer is the time master, and the disabled Synchronizer is the time slave.
The enabled Synchronizer supplies time messages every half-second to the
synchronized application processes as well as to the disabled Synchronizer. To
insulate applications against time discontinuities, the time supplied by the enabled
Synchronizer is smoothed. If the system clock on the enabled side is changed, the
enabled Synchronizer will supply time messages that appear to run 10% faster or
slower (as needed) until the MDS time has converged with the system time.