Specifies the maximum length of a message that can be transmitted on the channel.
On WebSphere MQ for iSeries, UNIX(R) systems, and Windows systems, specify a value greater than or equal to zero, and less than or equal to the maximum message length for the queue manager. See the MAXMSGL parameter of the ALTER QMGR command in the WebSphere MQ Script (MQSC) Command Reference book for more information. On WebSphere MQ for z/OS, specify a value greater than or equal to zero, and less than or equal to 104 857 600 bytes.
Because various implementations of WebSphere MQ systems exist on different platforms, the size available for message processing may be limited in some applications. This number must reflect a size that your system can handle without stress. When a channel starts up, the lower of the two numbers at each end of the channel is taken.
This attribute is valid for all channel types.
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