These release notes support Version 4.6.0 of the ptx®/SNA 3270 software Read this document before installing this software on your NUMA-QTM or Symmetry® systems.
The software installation procedure is documented in the DYNIX/ptx® and Layered Products Software Installation Release Notes. Read these release notes thoroughly before installing the ptx/SNA 3270 software.
The following software products are prerequisites for the ptx/SNA 3270 V4.6.0 software:
ptx/SNA PU2.1 Base Server V4.6.0 and its prerequisites (refer to the ptx/SNA PU2.1 Base Server V4.6.0 Release Notes).
ptx/XWM V4.5.0 or later if using the X WindowsTM version of 3270 terminal emulation.
ptx/SNA 3270 V4.6.0 will now run in a threaded environment. However, the product does not support threaded operations.
ptx/SNA 3270 is a layered software product. Layered product installations are described in the DYNIX/ptx and Layered Products Software Installation Release Notes. Perform all of the necessary steps in these release notes and select the package for the ptx/SNA 3270 software. The package name for this software is Brx3270.
Check the following table, which lists all of the package names and the corresponding directories and files:
Application Tape |
Package Name |
Directory/Files |
ptx/SNA 3270 |
Brx3270 |
/usr/local/brixton/Brx3270/* |
/usr/local/brixton/BMD/B327_msglib |
||
/usr/local/brixton/BMD/B387_msglib |
The installation is now complete.
Include the following in your path:
Refer to the following table when planning the number of processes for each 3270 application you intend to use.
Product |
Processes |
ptx/SNA 3270 (brx3270tty, brx3270x, brx3287) |
1 per invocation |
ptx/SNA EHLLAPI |
1 per invocation |
After the ptx/SNA 3270 product is installed from tape, entries are made in /etc/services for EHLLAPI sessions named a-z, A-Z, and 0-9.
ATTENTION IBM® standards support only A-H for EHLLAPI sessions, which are also known as presentation space names.
brxehllapiA 5022/tcp brxehllapiB 5023/tcp . . . . . brxehllapiH 5029/tcp brxehllapiI 5030/tcp brxehllapiJ 5031/tcp. . . . . brxehllapiZ ....... brxehllapia ....... brxehllapib ....... . . . brxehllapiz ....... brxehllapi0 ....... brxehllapi1 ....... . . . . brxehllapi9 .......
The following manuals may contain helpful information for the ptx/SNA 3270 product:
ptx/SNA 3270 User's Guide
ptx/SNA PU2.1 Base Server Administration Guide
ptx/SNA PU2.1 Base Server V4.6.0 Release Notes
ptx/SNA EHLLAPI Programmatic Interface Guide
ptx/SNA TN3270 User's Guide
The IND$FILE file transfer program (pcft) is defined by IBM to use two modes of operation: Query Mode and Buffer Mode. ptx/SNA 3270 only supports Query Mode file transfers. This means that the Query bit in the Presentation Services of the 3270 LOGMODE table must be turned on.
This is a change from ptx/SNA 3270 V1.1 and previous releases that only supported Buffer Mode transfer. The host systems programmer must supply a LOGMODE that supports Query Mode transfers.
Workaround: None.
The IND$FILE file transfer program (pcft) will dump core if the ptx/SNA 3270 terminal emulator (brx3270tty or brx3270x) associated with it is terminated.
Workaround: Do not kill the brx3270tty process while pcft is processing.
Switching to SSCP-LU sessions too often while data is flowing on the LU-LU session can cause the terminal to hang or cause an invalid state transition error and terminate the 3270 terminal emulator (brx3270tty or brx3270x).
Workaround: If the terminal process hangs, stop and restart the emulator.
In the transition period between logging off from an LU-LU session and being returned to the SSCP-LU session, if you hit a key, brx3270x may exit with the message Invalid FSM transition. Another symptom of this problem is that the emulation process can hang.
Workaround: Do not enter any keystrokes while an LU-LU session is being terminated.