Subscriber services: Prevent drift of accounting records

You can configure accounting records to record data in accounting files and archive the accounting files to analyze the information collected. Drifting of the accounting records happens if the time at which the records are written to the accounting file spills beyond the transfer window of the file. To prevent drifting of accounting records: 

• Use the start-time statement with the accounting profiles (class-usage-profile, filter-profile, flat-file-profile, interface-profile, mib-profile, and routing-engine-profile) to have a predictable start time of the profiles. 
• Use the timestamp statement with the request accounting add records command to record the timestamp externally instead of epoch timestamp when the command is executed.