Acquiring a connection
The SET CONNECTION ACQUIRED command causes CICS® to establish a connection with a partner system.
The
major processes involved in this operation are:
- Establishing of the two LU services manager sessions in the modegroup SNASVCMG.
- Initiating of the change-number-of-sessions (CNOS) process by
the partner initiating the connection.
CNOS negotiation is executed (using one of the LU services manager sessions) to determine the numbers of contention-winner and contention-loser sessions defined in the connection. The results of the negotiation are reported in messages DFHZC4900 and DFHZC4901.
- Establishing of the sessions that carry CICS application data.
The following processes, also part of connection establishment, are described in Troubleshooting intersystem problems:
- Exchanging lognames
- Resolving and reporting synchronization information.