This read-write enumerated value (true, false) sets this node's DataPDUInOrder preference, where false allows data PDUs within a sequence to arrive in any order and true requires continuously increasing addresses with no gaps or overlap between PDUs. An admin may adjust this when troubleshooting compatibility with a target or initiator that has stricter or looser ordering requirements, since a mismatch can affect how multi-connection transfers are scheduled. For example, disabling strict in-order delivery here could allow a multi-connection session to use out-of-order arrival for better load balancing across connections, if the peer supports it.