Oracle Solaris 11.4 Tunable Parameters Reference Manual Internet Protocol Suite Tunable Parameters SCTP Tunable Parameters _deferred_ack_interval Parameter _deferred_ack_interval Parameter Description Sets the time-out value for SCTP delayed acknowledgment (ACK) timer in milliseconds. Default 100 milliseconds Range 1 to 60,000 milliseconds Dynamic? Yes When to Change Refer to RFC 2960, section 6.2. Commitment Level Unstable