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Declared Limit to Control the Number of Unexpected PDUs A new key, MaxOutstandingUnexpectedPDUs, can be used by both the initiator and the target to declare the maximum number of outstanding “unexpected” control-type PDUs it can receive For the PDUs listed on slide 3, the PDU is outstanding until the target responds with the corresponding response PDU NOP-out PDU with ITT = 0xffffffff and TTT /= 0xffffffff (ping echo) is not subject to the declared limit since it is sent as a response to a NOP-in PDU from the target Similarly, NOP-in PDU with ITT/= 0xffffffff and TTT = 0xffffffff sent as a response to a NOP-out PDU from the initiator is not subject to the limit |