tmnxOspfShamIfMD5KeyStartTime 1.3.6.1.4.1.6527.3.1.2.36.27.1.4

The value of tmnxOspfShamIfMD5KeyStartTime specifies the date and time when this MD5 authentication key becomes valid for use. If no date and time is set, represented by a DateAndTime string with 0 length, the key is valid by default.