SNAX/APN Application Programming Manual

Migrating Applications From SNAX/XF and
SNAX/CDF to SNAX/APN
SNAX/APN Application Programming Manual—420111-001
A-3
How SNAX/APN Differs From SNAX/XF
How SNAX/APN Differs From SNAX/XF
The following is a list of features that are supported in SNAX/XF but not in
SNAX/APN. If you plan to use any or all of these features with applications migrating
from SNAX/XF to SNAX/APN, or if SNAX/XF applications will be using SNAX/APN,
your applications must be modified.
•
The PRT protocol
•
The ERMODE and the programmatic invocation of exception response mode
•
X.25 switched virtual circuits
•
Support for SNAX/CM (Connection Manager) applications
•
Support for the Japanese character sets
•
Support for the Passthrough feature
Table A-1 lists the functions that are available with the CRT or the ITI protocol in
SNAX/XF but are not supported in SNAX/APN.
Support of the Character-Coded LOGON
The character-coded LOGON is not supported by the SNALU interface of SNAX/APN
as it is by SNAX/XF. If a Tandem application sends a character-coded LOGON, it is
rejected with a file system return code 2.
Table A-1. High-Level Protocol Functions Supported in SNAX/XF but Not
SNAX/APN
Protocol Procedure Call Function
CRT SETMODE function 54 Obtaining the unit address of a device
CRT SETMODE function 115 Setting and obtaining SNA Control Request
Notification (CINIT and CTERM)
CRT/ITI SETMODE function 144 Obtaining Japanese character sets
CRT SETMODE function 150 Initiating a session