OSI/TS Management Programming Manual

ALTER SU Command
Commands and Responses
056786 Tandem Computers Incorporated 5–63
ZOS4-VAL-NETTYPE-B
Network connection with an acceptable residual error rate: not signaled
by disconnect or reset, with an unacceptable rate of errors.
ZOS4-VAL-NETTYPE-C
Network connection with an unacceptable residual error rate.
The default value is ZOS4-VAL-NETTYPE-A.
ZCLASS
specifies the preferred transport protocol class used. Acceptable values are:
ZOS4-VAL-CLASS-0
ZOS4-VAL-CLASS-1
ZOS4-VAL-CLASS-2
ZOS4-VAL-CLASS-3
ZOS4-VAL-CLASS-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:
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
3 0 or 1 or 2 or 3
4 0 or 1 or 2 or 3 or 4