OSI/TS Management Programming Manual

ALTER SU Command
Commands and Responses
5–62 056786 Tandem Computers Incorporated
ZLOC-TSEL
specifies the local transport service access point selector; a string of
hexadecimal digits (0 through 9 and A through F) up to 64 digits maximum.
OSI/TS uses this field to build the called TSAP-ID field of the CR-TPDU. If
the content of the field is blanks the CR-TPDU does not contain the called
TSAP-ID. This string should contain an even number of hexadecimal digits. If
you supply an odd number of digits, a hexadecimal “F” is added to the end,
making an even number of digits. To reset this field to its default value, set
the first byte to Z0S4-VAL-ADDR-RESET-BYTE.
ZRMT-TSEL
specifies the remote transport service access point selector. It is a string of
hexadecimal digits (0 through 9 and A through F) up to a maximum of
64 digits. OSI/TS uses this field to build the called TSAP-ID field of the
CR-TPDU. If the content of the field is blanks, the CR-TPDU will not contain
the called TSAP-ID.This string should contain an even number of hexadecimal
digits. If you supply an odd number of digits, a hexadecimal “F” is added to
the end, making an even number of digits. To reset this field to its default
value, set the first byte to Z0S4-VAL-ADDR-RESET-BYTE.
ZTCON-PRI
specifies the priority of the transport connection. This attribute is used to
reassign transport connections after errors have occurred. Because an
agreement has not yet been reached among the implementors concerning this
attribute, Tandem OSI does not currently process this field. The values range
from 0 through 32767 (0 being the highest priority).
ZL4-WIN
specifies the initial credit allocation to the remote transport entity. This is the
number of TPDUs that can be sent by the remote transport entity without
acknowledgment. This attribute is valid only when ZCLASS is ZOS4-VAL-
CLASS-1, ZOS4-VAL-CLASS-2, ZOS4-VAL-CLASS-3, or ZOS4-VAL-CLASS-4.
When ZCLASS is 1, you must specify 0 or 1 (a value of 0 is interpreted as 1).
For transport class 1, the use of values 2 through 15 could lead to a deadlock
situation when the sending transport entity waits for the acknowledgment of
each DT-TPDU before it sends the next one. The range of values is 0 through
15.
ZNETTYPE
specifies network services in terms of quality. Possible values are:
ZOS4-VAL-NETTYPE-A
Network connection with an acceptable residual error rate: not signaled
by disconnect or reset, with an acceptable rate of errors.