Appendix F Differences Between IMF/3000 and SNA IMF/V

If you are migrating from IMF/3000 to SNA IMF/V on an MPE V system, you may find the information in this appendix helpful. IMF/3000 uses either BSC or SDLC protocol in a Node Type 1 environment. SNA IMF uses only SDLC protocol in a Node Type 2 environment.

	NOTE: If you are migrating from IMF/3000 to SNA IMF/V, the following IMF/3000 components are not required: INP download, IMF Monitor, Pseudo Driver, and IMF Manager.

Unlike IMF/3000, which is a complete subsystem that incorporates functions from the user level down to and including the INP, SNA IMF runs entirely on the user's stack. SNA IMF exists once for each user who invokes the SNA IMF intrinsics.

	NOTE: IMF/3000 is currently supported only on MPE V.

This appendix compares and contrasts IMF/3000 with SNA IMF/V in these areas: