gtpm1m2tTPF V4R1 Migration Guide: 3.1 to 4.1

Non-SNA Communication

The TPF 4.1 system supports the following non-Systems Network Architecture (SNA) protocols:

Support for the following non-SNA protocols was dropped:

In the TPF 4.1 system, non-SNA communication shutdown levels are based on the number of items on the input list rather than on the number of blocks available in the system. Polling stops when the number of items on the input list exceeds the shutdown level and restarts when the number of items on the input list is below the restart level. There is no longer a secondary shutdown level for SLC and BSC.