MXSUBNUM start option

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   .-MXSUBNUM--=--511-------.   
>>-+------------------------+----------------------------------><
   '-MXSUBNUM--=--+-255---+-'   
                  +-511---+     
                  +-1023--+     
                  +-2047--+     
                  +-4095--+     
                  +-8191--+     
                  +-16383-+     
                  +-32767-+     
                  '-65535-'     

Specifies the maximum subarea number supported by a network to which a host VTAM® is interconnected. If the value coded is not one of the values listed above, VTAM will not accept this start option for processing.

Note: The value specified on the HOSTSA start option cannot exceed the value specified for MXSUBNUM.