The capture agent continuously updates the Capture configuration (.cab) file with the global LSN (last Db2 log LSN read), and the last LSN Published and Acknowledged for each Subscription/Target Engine. Those LSN's are used when the Capture is started the First Time and when it resumes following a scheduled or unscheduled STOP and when for whatever reason a decision has been made to either Re-Capture from a point-in-time in the past or to skip to the "Current" point-in-time