OSI/TS Management Programming Manual

INFO SERVICE Command
Commands and Responses
5–98 056786 Tandem Computers Incorporated
C TRUE 4
C FALSE 4
ZALT-CLASS
is the alternative protocol class used if the class specified in ZCLASS is not
supported by the remote system. If ZCLASS has the value ZOS4-VAL-CLASS-
0, then ZALT-CLASS is not applicable. The values for this field are the same
as for ZCLASS:
ZOS4-VAL-CLASS-0
ZOS4-VAL-CLASS-1
ZOS4-VAL-CLASS-2
ZOS4-VAL-CLASS-3
ZOS4-VAL-CLASS-4
The valid combinations of preferred protocol class and alternative protocol
class are as follows:
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
ZTPDU-SIZE
is the maximum length of a transport protocol data unit (TPDU) in bytes.
Acceptable values for this field are: 128, 256, 512, 1024, 2048, 4096, and 8192
bytes.
ZXSUM
specifies whether the checksum field is added to each TPDU. This field is
applicable only for protocol class 4 communication. If set to ZSPI-VAL-TRUE,
the checksum field is added; if set to ZSPI-VAL-FALSE, the checksum is not
added.
ZEXT-FRMT
controls the use of the extended format the credit and sequence number of the
TPDUs. This field is applicable only for protocol class 2, 3, or 4
communication. If set to ZSPI-VAL-TRUE, the extended format is used; if set
to ZSPI-VAL-FALSE, the normal format is used.
ZMULTIPLEX
specifies whether more than one outgoing transport connection is mapped to
one network connection (ZSPI-VAL-TRUE) or not (ZSPI-VAL-FALSE). The
default value is ZSPI-VAL-FALSE. To be able to multiplex, two or more