AM3270/TR3271 Reference Manual

Using Multiple-Level Access Methods
A Closer Look at TR3271
086705 Tandem Computers Incorporated 5–15
Error Handling Error conditions that occur at various levels are evaluated by TR3271 which
determines if the error can be handled at the level where errors are detected, at
another level, or by the application process. Retries are performed either according to
the BSC protocol or by the application process.