OSI/TS Management Programming Manual
ADD SU Command
Commands and Responses
5–20 056786 Tandem Computers Incorporated
ZCLASS
specifies the preferred transport protocol class to be used. Acceptable values
are:
ZOS4-VAL-CLASS-0
ZOS4-VAL-CLASS-1
ZOS4-VAL-CLASS-2
ZOS4-VAL-CLASS-3
ZOS4-VAL-CLASS-4
If not specified, the value of ZCLASS is determined by the settings of the
parameters ZNETTYPE and ZMULTIPLEX, according to the matrix below:
ZNETTYPE ZMULTIPLEX ZCLASS
A TRUE 2
A FALSE 0
B TRUE 3
B FALSE 1
C TRUE 4
C FALSE 4
For LAN networks, ZCLASS must be ZOS4-VAL-CLASS-4. For X.25
networks, when ZIP-X25-SNDCF is ZSPI-VAL-FALSE, ZCLASS can be ZOS4-
VAL-CLASS-0, ZOS4-VAL-CLASS-1, ZOS4-VAL-CLASS-2, ZOS4-VAL-
CLASS-3, or ZOS4-VAL-CLASS-4. For X.25 networks, when ZIP-X25-SNDCF
is ZSPI-VAL-TRUE, ZCLASS must be ZOS4-VAL-CLASS-4. ZOS4-VAL-
CLASS-0 is the derived value if you use the default values for ZNETTYPE and
ZMULTIPLEX.
ZALT-CLASS
specifies the alternative protocol classes to be proposed if the desired class is
not supported by the remote. Possible values are:
ZOS4-VAL-CLASS-0
ZOS4-VAL-CLASS-1
ZOS4-VAL-CLASS-2
ZOS4-VAL-CLASS-3
ZOS4-VAL-CLASS-4
This parameter is not applicable if the preferred class is 0. Only one
alternative class may be specified. The following table defines the valid
combinations of preferred class and alternative classes.
Preferred Class Alternative Classes
0 not applicable
1 0 or 1
2 0 or 2