This object indicates the value of sysUpTime the last time one
of the following changes occurred to the ciapPrefixTable:
- A row was created and added to the ciapPrefixTable.
- A row was removed from the ciapPrefixTable and destroyed.
- An instance of an object in the row was modified, including
objects contained by the ciapPrefixTable and tables that have
a one-to-one or sparse dependent relationship on the
ciapPrefixTable.