OSI/TS Management Programming Manual

ALTER SERVICE Command
Commands and Responses
056786 Tandem Computers Incorporated 5–41
ZOS4-MAP-ALTER-SERV-L3
is an extensible structured token specifying the desired values for the Layer 3
service attributes. ZOS4-DDL-ALTER-SERV-L3 contains the following fields:
ZX25ACCEPTCHG
specifies whether an incoming call request that contains a request for the
recipient to pay the charge is accepted. ZSPI-VAL-TRUE means that collect
calls are accepted. ZSPI-VAL-FALSE means that collect calls are not accepted.
The default is ZSPI-VAL-FALSE.
ZX25CUG
specifies the closed user group ID (CUG ID) that is sent in every call-request
packet. If no CUG ID is specified, X25AM sends the CUG ID of the associated
X25AM line. Acceptable values range from 0 through 9999. No default value
is provided. To reset this field to its default value, set the first byte to
ZOS4-VAL-CUG-RESET.
ZX25DESTADDR
specifies the network address that is used as the called address in an outgoing
call request packet. The address is a string of decimal digits (0 through 9), up
to a maximum of 15 digits. The default is all blanks. To reset this field to its
default value, set the first byte to ZOS4-VAL-ADDR-RESET-BYTE.
ZX25NEGOT-L3-WIN, ZX25NEGOT-PKT-SIZE, and ZX25NEGOT-THRUPUT
specify the action to be taken when a call request is received with
unacceptable values for one of these characteristics. If a call request packet
with an unacceptable value for either L3 window, packet size, or throughput
has been received, and that characteristic is defined as negotiable (the
respective parameter has been set to ZSPI-VAL-TRUE), a call accept packet
containing an acceptable value for that characteristic is sent to the network. If
the characteristic is non-negotiable (the respective parameter is set to ZSPI-
VAL-FALSE), the call request is denied.
ZX25PORT
is the logical port number, in X.25 networks, used by the subdevice. The range
of values is 0 through 9999. The default value is 0.
ZX25PRICALL
enables or disables the capability of making priority calls. If set to ZSPI-VAL-
TRUE, priority call capability is enabled; if set to ZSPI-VAL-FALSE, the
capability is disabled. This attribute is used only for the DATAPAC network;
it must be OFF (ZSPI-VAL-FALSE) if the network is other that DATAPAC.
The default value is ZSPI-VAL-FALSE.