This read-write object, in seconds within a 1-to-604800 range, sets how long the Radio Master assigns as the validity period for keys in a given TEK association. The desc cautions that field deployments should never set this below the standards-mandated 1800-second (30-minute) floor, with the wider range provided only to facilitate testing. For example, an admin configuring a production link would ensure cwrBpiRmTEKLifetime stays at or above 1800 seconds rather than using a shorter value intended for lab testing of rapid rekey behavior.