Conversation verbs

The following information shows LU 6.2 conversation verbs.

ALLOCATE: Start a conversation.
CONFIRM: Transmit any data in the send buffer and request confirmation that the data has been received and meets criteria specified by the transaction programs.
CONFIRMED: Give confirmation that all data to this point has been received successfully and meets criteria specified by the transaction programs.
DEALLOCATE (except TYPE=LOCAL): End a conversation. (TYPE=LOCAL is explained under Verbs not supported by VTAM.)
FLUSH: Transmit any data remaining in the send buffer.
PREPARE_TO_RECEIVE: Transmit any data remaining in the send buffer along with an indication that the remote transaction program can now transmit. This can include the function of the CONFIRM verb.
RECEIVE_AND_WAIT: If information sent by the partner LU has arrived, receive it; if no information has been sent yet, wait for it.
RECEIVE_EXPEDITED_DATA: Receive expedited data from a partner LU.
RECEIVE_IMMEDIATE: If information sent by the partner has arrived, receive it; if no information has been sent, do not wait for it.
REQUEST_TO_SEND: Ask the partner LU for permission to send data.
SEND_DATA: Place data in the send buffer and, if enough data has accumulated, transmit it.
SEND_ERROR: Place information describing an error in the send buffer and, if enough data has accumulated, transmit it. (Negative responses to confirmation requests are sent immediately, without being buffered.)
SEND_EXPEDITED_DATA: Send expedited data to a partner LU on a full-duplex-capable session.