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3.1.3.2 Session Initialization

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The following values MUST be initialized for each session:

  • The value of the MessageSentCount ADM element MUST be set to 0x0000.

  • The value of the RecoverableMessageSentCount ADM element MUST be set to 0x0000.

  • The value of the MessageReceivedCount ADM element MUST be set to 0x0000.

  • The value of the RecoverableMessageReceivedCount ADM element MUST be set to 0x0000.

  • The value of the RecoverableMsgAckFlags ADM element MUST be set to 0x00000000.

  • The value of the LastAckedRecoverableMsgSeqNumber ADM element MUST be set to 0x0000.

  • The value of the UnackedReceivedMsgCount ADM element MUST be set to 0x0000.

  • The Session Ack Wait Timer (section 3.1.2.4) MUST be stopped.

  • The Session Ack Send Timer (section 3.1.2.5) MUST be stopped.

  • The Transactional Ack Wait Timer (section 3.1.2.6) MUST be stopped.

  • The Order Ack Send Timer (section 3.1.2.7) MUST be stopped.

  • The Session Cleanup Timer (section 3.1.2.2) MUST be started.

  • If the OutgoingMessageTable ADM element is not empty, the Session Retry Connect Timer (section 3.1.2.3) MUST be started.

  • The TxOutgoingSequence ADM element MUST be set to a new instance of the OutgoingTransferSequence ADM element and initialized as follows:

    • LastAck.SeqNo MUST be set to 0x00000000.

    • The TimeOfLastAck ADM attribute MUST be set to the local system time.

    • The LastAckCount ADM attribute MUST be set to zero.

    • The ResendIntervalIndex ADM attribute MUST be set to the index of the first entry in the ResendTimerTable ADM element.

    • The ResendInterval ADM attribute MUST be set to the value of the first entry in the ResendTimerTable ADM element.

    • The ResendTime ADM attribute MUST be set to zero.

  • The AwaitingAck, ReceivedSessionAck, ReceivedOrderAck, and Transmitted ADM attributes of each OutgoingMessagePosition (section 3.1.1.3.1.2) ADM element instance entry in the OutgoingMessageTable ADM element MUST be set to FALSE.

  • The value of the UnAckedMessageCount ADM element MUST be set to the count of OutgoingMessagePosition ADM element instances with ReceivedSessionAck ADM attributes equal to FALSE in the OutgoingMessageTable ADM element.

  • The value of the WindowSize ADM element SHOULD<50> be set to 64.

  • The value of the SessionActive ADM element MUST be set to FALSE.

  • The value of the ReceivedAck ADM element MUST be set to FALSE.

  • The value of the AckWaitTimeout ADM element MUST be set based on the system configuration, which is implementation-dependent.<51>

  • The OrderAckTimeout ADM element MUST be set to a value of 500 milliseconds.

  • The DirectFormatSession ADM element MUST be set to FALSE.

  • The value of the MaximumOrderAckDelay ADM element SHOULD<52> be set to 10 seconds.

  • The value of the LastOrderAckSendTime ADM element MUST be set to the current system time, the number of seconds elapsed since midnight (00:00:00), January 1, 1970 (UTC) according to the system clock.

  • The value of the RecoverableAckSendTimeout ADM element MUST be set to 0xFFFFFFFF.

  • The RemoteQMPublicKey ADM element MUST be filled with zeroes (0x00) to indicate that it is not initialized.

  • The value of QueueManager.Identifier MUST be globally unique and set based on system configuration, which is implementation-dependent.<53>

  • The value of the PingCookie ADM element SHOULD<54> be set to 0x00000000.

  • The value of the SessionState ADM element MUST be set to WAITING_EC_MSG.