Maximum buffer size

Enter a number of kilobytes, in the range 4 through 32. The default is 32 KB. If you enter a value outside the permitted range, the Configuration Tool warns you. If the value entered is too low, it substitutes the minimum. If the value entered is too high, it substitutes the maximum. If a non-numeric value is present in the configuration file, it substitutes the minimum value.

This value specifies the size of the transmission buffers in which application or terminal data will flow. The value should be large enough to cater for the largest possible COMMAREA or terminal input/output area (TIOA) to be used. The maximum COMMAREA size might be less than the Maximum buffer size, because certain protocols have an overhead of 512 bytes.

Leave this setting at the default unless the CICS® Universal Client is running on a machine that is short of memory.

For details of the corresponding entry in the configuration file, see MAXBUFFERSIZE (CLIENT section of the configuration file).