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This appendix details how the SNAP-IX implementation of APPC relates to the LU 6.2 architecture. It includes the following information:
A summary of the LU 6.2 option sets supported by SNAP-IX
A list of the control operator verbs which are included in the SNAP-IX APPC implementation
A list of the control operator verbs whose functions are performed in SNAP-IX by the administration tools or by the NOF API.
SNAP-IX APPC supports the base set of LU 6.2 functions, and a selection of the option sets. Some of these option sets are supported by APPC verbs; others are supported by the administration tools or by the NOF API.
The following tables list the option sets supported by SNAP-IX, with the option set reference number specified in IBM's Transaction Programmer's Reference Manual for LU Type 6.2. (Earlier versions of this IBM manual used different reference numbers.)
| Reference Number | Option set |
| 101 | Flushing the LU's send buffer |
| 102 | GET_ATTRIBUTES |
| 103 | POST_ON_RECEIPT with test for posting * |
| 104 | POST_ON_RECEIPT with wait * |
| 105 | PREPARE_TO_RECEIVE |
| 106 | RECEIVE_IMMEDIATE |
| 109 | Get TP name and instance identifier |
| 110 | GET_CONVERSATION_TYPE |
| 201 | Queued allocation of a contention-winner session |
| 203 | Immediate allocation of a session |
| 204 | Conversations between programs located at the same LU |
| 205 | Queued allocation for when session free |
| 211 | Session-level LU-LU verification |
| 212 | User ID verification |
| 213 | Program-supplied user ID and password |
| 214 | User ID authorization |
| 241 | Sending PIP data |
| 242 | Receiving PIP data |
| 243 | Accounting |
| 244 | Long locks |
| 245 | Test for REQUEST_TO_SEND received |
| 247 | User Control data |
| 290 | Logging of data in a system log |
| 291 | Mapped conversation LU Services component |
| 401 | Reliable One-Way Brackets |
| 616 | CPSVCMG mode name support |
*Options 103 and 104 are supported by the [MC_]RECEIVE_AND_POST verb.
| Reference Number | Option set |
| 501 | CHANGE_SESSION_LIMIT |
| 502 | ACTIVATE_SESSION |
| 504 | DEACTIVATE_SESSION |
| 505 | LU definition verbs |
| 601 | min_conwinners_target parameter |
| 602 | responsible (TARGET) parameter |
| 603 | drain_target (NO) parameter |
| 604 | force parameter |
| 605 | LU-LU session limit |
| 606 | Locally known LU names |
| 607 | Uninterpreted LU names |
| 610 | Maximum RU size bounds |
| 611 | Session-level mandatory cryptography |
| 612 | Contention winner automatic activation limit |
| 613 | Local maximum (LU, mode) session limit |
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