MaxSegmentLength (MQLONG)
This field specifies the maximum length in bytes that can be sent in a single transmission.
It is not used by the auto-definition exit. It is
of interest to a channel send exit, because this exit must ensure
that it does not increase the size of a transmission segment to a
value greater than MaxSegmentLength.
The length includes the initial 8 bytes that the exit must not change.
The value is negotiated between the WebSphere® MQ
channel functions when the channel is initiated. See Writing channel-exit programs
for more information about segment lengths.
The value in this field is not meaningful if ExitReason is
MQXR_INIT.
This is an input field to the exit.