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3270 Host Connection Program 2.1 and 1.3.3 for AIX: Guide and Reference

HCON Sessions and Session Profiles

A display session begins with a logon to a mainframe host and ends when the connection is closed. The session can be started using the following commands with the session identifier that contain a set of predefined session information.

e789
                          Starts a display session from an ASCII display, AIXTerm, or the HFT session.
xhcon
                          Starts a display session using the AIXwindow interface.
e789pr
                          Starts a printer session.

Display Sessions

Display sessions emulate a 3278/79 display terminal connected to a mainframe host. HCON supports four types of display sessions. The sessions are device-specific and include:

DFT display session
                          Uses the 3270 Connection Adapter in Distributed Function Terminal (DFT) mode.
Note: SNA Services software is not required for a DFT session.
SNA standalone session Uses a 4-Port Multiprotocol Communications Controller, Single Port Multiprotocol Adapter/2, X.25 Interface Co-Processor/2, or Token-Ring High-Performance Network Adapter or Ethernet High-Performance LAN Adapter along with the SNA Services software.
Note: SNA Services software is required.
HIA display session Uses the Host Interface Adapter (HIA).
TCP/IP display session Uses a Token-Ring High-Performance Network Adapter, Ethernet High-Performance LAN Adapter, X.25 Interface Co-Processor/2, Block Multiplexer Channel Adapter, FDDI Adapter, or the ESCON Adapter.

Printer Sessions

A printer session emulates a 3286/87 printer. A printer session prints files from the host computer on a local printer or stores printable files on the local system. The printer session process executes in the background. There is no keyboard or display screen associated with the session. Using the System Management Interface Tool (SMIT) control option, you can activate or deactivate session.

Two types of printer sessions are supported:

Non-SNA DFT session Uses the 3270 Connection Adapter in Distributed Function Terminal (DFT) mode.
SNA standalone session Uses any appropriate adapter as a prerequisite for the SNA Services software.

Session Profiles

Session profiles define the characteristics of either a printer or a display session. Define session profiles using:

SMIT dialogs Provides online help and selectable session characteristics. Each characteristic, other than session type, has an associated field in the SMIT session-profile dialogs. SMIT also provides options to add, change, remove, or list session profiles. SMIT-created shells can define multiple profiles. To start SMIT for use with HCON, enter the smit hcon fast path command.
HCON commands Requires an associated flag for each profile characteristic. Use these HCON commands to work with session profiles from the command line:
mkhcons Creates a session profile.
chhcons
                          Changes an existing profile.
rmhcons Removes a session profile.
lshconp Lists a user's session profiles.
lshcons Lists the characteristics of a session.
                          Specifies the session type of an existing profile.
Note: Specifying a printer characteristic when defining a display session or specifying a display characteristic when defining a printer session causes an error. SMIT dialogs show only the characteristics appropriate to the type of session in use.
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