>> 1) Doesn't need to be in the group (as sean pointed out)
>
>Yes it does. There are send only ("non") members in the JoinState
>component of the MCMemberRecord. This can be used to optimize the MC
>routing (as that port never needs to receive but needs to be able to
>send on the MLID).

I believe that the local port needs to be at least a SendOnly member (for
routing purposes), but the QP does not need to be attached to the group.

- Sean

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