Systems Network Architecture Interactive Mainframe
Facility (SNA IMF) is a Hewlett-Packard software product
based on IBM's Systems Network Architecture (SNA). SNA
IMF allows an HP 3000 to communicate with a remote host in an IBM
3270 environment. Using SNA IMF, the HP 3000 functions as a Type
2.0 node in an SNA network. Devices attached to the HP 3000 emulate
the functions of IBM 3278 display stations and IBM 3287 printers.
The HP 3000 plays the same role in an SNA network that the
IBM 3276 or 3274 Cluster Controller plays in a remote IBM environment. Figure 1-1 “The HP 3000 in the IBM 3270 Environment” shows how the HP 3000 fits into the IBM 3270
environment.
Figure 1-1 The HP 3000 in the IBM 3270 Environment
SNA IMF supports the base set of IBM
3274 Cluster Controller functions. The following 3274 functions
are not supported:
| Extended color |
| Structured fields and attribute processing. |
| APL/Text |
| REQMS and RECFMS |
| Operator-entry assist |
| NetView support including the Alert function |
| Magnetic-stripe readers and bar-code readers |
| Operator type-ahead feature |
| Dual session support |
SNA IMF allows HP 3000 programs and attached devices to exchange data
with application subsystems on an IBM host. These IBM application
subsystems include the Customer Information Control System
(CICS), Information Management System (IMS),
and Time Sharing Option (TSO).
