+0      socket(..., SOCK_STREAM, IPPROTO_SCTP) = 3
+0      connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+0    > sctp: INIT[flgs=0, tag=..., a_rwnd=..., os=2048, is=10, tsn=0, ...]
+0.05 < sctp: INIT_ACK[flgs=0, tag=22, a_rwnd=100000, os=2048, is=10, tsn=1, STATE_COOKIE[len=4, val=...]]
+0    > sctp: COOKIE_ECHO[flgs=0, len=4, val=...]
+0.05 < sctp: COOKIE_ACK[flgs=0]
+0.05   write(3, ..., 1000) = 1000
+0    > sctp: DATA[flgs=BE, len=1016, tsn=0, sid=0, ssn=0, ppid=0] // Other flags allowed: IU
+0.05 < sctp: SACK[flgs=0, cum_tsn=0, a_rwnd=100000, gaps=[], dups=[]]
+0.15   close(3) = 0
+0    > sctp: SHUTDOWN[flgs=0, cum_tsn=0]
// a DATA chunk has to be sent to provoke an ABORT chunk
+0.05 < sctp: DATA[flgs=BE, len=1016, tsn=1, sid=0, ssn=0, ppid=0]
+0    > sctp: ABORT[flgs=0] //t-bit=0