[ofa-general] two questions about RDMA_CM_EVENT_TIMEWAIT_EXIT and the TimeWait state

[Sean Hefty]

>> Note that a lot (most?) connections between QPs are established out of band
>> using TCP, and these are not tracked by the CM or go through any sort of
>> timewait before potentially being reused.
>
>I don't quite understand this. Could you please point me to places
>(code, IB spec, so on) where I could poke around?

MPIs typically connect QPs by connecting over sockets and exchanging the QP
information that way.  The QPs are then modified directly using a combination of
locally read and hard-coded values.  The libibverb examples along with the
perftest programs can connect QPs in this fashion.