DCMT VARY LU Usage

Specifying MAXSES

max-session-count has the following usage considerations:

The highest value that can be specified is equal to the number of physical terminals associated with the given logical unit. Physical terminals are associated with logical units at system generation time by using the PTERM statement.
The value for a remote logical unit type 6.2 is overridden at run time when the value is unacceptable. The remote logical unit service manager negotiates the maximum session value.

Specifying MINWIN

min-contention-winner-count has the following usage considerations:

The value can be in a range from 0 through the value specified for MAXSES (see above). Specifying 0 (zero) for this value is the same as specifying RESET (see below).
The value for a remote logical unit type 6.2 is overridden at run time when the value is unacceptable. The remote logical unit service manager negotiates the minimum contention winners value.

Specifying MINLOS

min-contention-loser-count has the following usage considerations:

The value can be in a range from 0 through the value specified for MAXSES (see above). Specifying 0 (zero) for this value is the same as specifying RESET (see below).
The value for a remote logical unit type 6.2 is overridden at run time when the value is unacceptable. The remote logical unit service manager negotiates the minimum contention losers value.

More Information

For more information about displaying information about SNA physical terminals defined with a line type of VTAMLU, see the section DCMT DISPLAY LU.
For more information about defining SNA lines and logical units at system generation, see documentation of the VTAMLU device definition statements in the System Generation Guide.