This object specifies the type of start time of the SOAM DM
session. The start time can be disabled (none), immediate, relative,
or fixed.
The value of 'none' is illegal and a write error will be returned
if this value is used.
The value of 'immediate' starts the SOAM DM session when the
jnxSoamDmCfgEnabled is true.
The value of 'fixed' starts the SOAM DM session when the
jnxSoamDmFixedStartDateAndTime is less than or equal to the current
system date and time and jnxSoamDmCfgEnabled is true. This value is used
to implement an On-Demand fixed time PM session.
The value of 'relative' starts the SOAM DM session when the current
system date and time minus the jnxSoamDmRelativeStartTime is greater than
or equal to the system date and time when the jnxSoamDmStartTimeType
object was written and jnxSoamDmCfgEnabled is true. This value is used
to implement an On-Demand relative time PM session.
This object can only be written at row creation time and cannot be
modified once it has been created.