Determining CDR Flat File Readiness

A.

Sure, I'd be happy to explain how a Call Detail Record (CDR) Agent running on a Cisco Unified Communication Manager (CUCM) node determines if a CDR flat file is ready to be transferred to a designated CDR Repository node.

CDRs are generated by the CUCM to record call activity, and the CDR Agent is responsible for transferring these CDRs to a designated CDR Repository node for storage and analysis.

There are several ways in which the CDR Agent can determine if a CDR flat file is ready to be transferred:

A. The CDR Agent knows transfer eligibility from the name of a CDR flat file name.

This is not a valid way to determine transfer eligibility, as the name of a CDR flat file does not provide any information about whether it is ready to be transferred.

B. The CDR Agent transfers all CDR flat files at a specific, configurable time of day.

This is a valid way to transfer CDR flat files, but it may not be the most efficient method, as it requires transferring all files at a set time, regardless of whether they have been updated or not.

C. The CDR Agent transfers all new CDR flat files generated after the last successful transfer.

This is a common method for determining transfer eligibility, as it ensures that only new or updated CDR flat files are transferred, reducing the amount of unnecessary data transfer.

D. The CDR Agent transfers all new CDR flat files upon receiving notifications from the CDR Repository node on the name of last file successfully received.

This is another valid method for determining transfer eligibility, as it allows the CDR Agent to keep track of which files have been successfully transferred and which ones need to be transferred next.

E. The CDR Agent transfers any CDR flat file before its deletion.

This method is not recommended, as it could result in unnecessary data transfer if files are deleted before they have been analyzed or processed.

In summary, the most common and efficient way for the CDR Agent to determine transfer eligibility is to transfer all new or updated CDR flat files generated since the last successful transfer, or upon receiving notifications from the CDR Repository node about the last successfully received file.