10951 is the current maximum for this setting. You cannot increase it beyond this value.
* Specifies the maximum number of days past, from the current date, that an
extracted date can be valid.
* For example, if MAXDAYSAGO = 10, Splunk ignores dates that are older
than 10 days ago.
* Defaults to 2000 (days), maximum 10951.
* IMPORTANT: If your data is older than 2000 days, increase this setting.