cmCpeBoardSwVersion is a read-only display string reporting the firmware version running on a subscriber's CPE, in major.minor format such as 1.0.6. An administrator uses it to audit firmware compliance across the subscriber base before a mass upgrade campaign. For example, an operator preparing a bulkCPEDownload would first survey cmCpeBoardSwVersion across all customers to identify which ones are still on an outdated version and need the update.